Title of Invention

CONTAINER WITH INTEGRATED COOLANT SEALS

Abstract A container is disclosed including a plurality of seal blocks adapted to militate against the entry of a fluid into coolant channel headers formed in bipolar plates during a dip coating process, wherein the seal blocks are interconnected and include a fastening portion and a sealing portion, the sealing portion capable of being interchanged.
Full Text CONTAINER WITH INTEGRATED COOLANT SEALS
FIELD OF THE INVENTION
[0001] The invention relates to a container for holding and transporting parts
through a dip coating process. More particularly, the invention is directed to a
container having integrated coolant channel seals to militate against the entry of a
fluid into the coolant channels of a fuel cell plate assembly during the dip coating
process.
BACKGROUND SUMMARY
[0002] Fuel cell systems are increasingly being used as a power source in a
wide variety of applications. Fue cell systems have been proposed for use in power
consumers, such as vehicles, as a replacement for internal combustion engines, for
example. Fuel cells are electrochemical devices which combine a fuel such as
hydrogen and an oxidant such as oxygen to produce electricity. The oxygen is
typically supplied by an air stream. The hydrogen and oxygen combine to result in
the formation of water. Other fuels can be used such as natural gas, methanol,
gasoline, and coal-derived synthetic fuels, for example.
[0003] The basic process employed by the fuel cell system is efficient,
substantially pollution-free, quiet, free from moving parts (other than an air
compressor, cooling fans, pumps and actuators), and may be constructed to leave
only heat and water as by-products. The term "fuel cell" is typically used to refer to
either a single cell or a plurality of cells depending upon the context in which it is
used. The plurality of cells is typically bundled together and arranged to form a
stack with the plurality of cells commonly arranged in electrical series. Since single
fuel cells can be assembled into stacks of varying sizes, systems can be designed to
produce a desired energy output level providing flexibility of design for different
applications.
[0004] Different fuel cell types can be provided such as phosphoric acid,
alkaline, molten carbonate, solid oxide, and proton exchange membrane (PEM), for

example. The basic components of a PEM-type fuel cell are two electrodes
separated by a polymer membrane electrolyte. Each electrode is coated on one
side with a thin catalyst layer. The electrodes, catalyst, and membrane together
form a membrane electrode assembly (MEA).
[0005] In a typical PEM-type fuel cell, the MEA is sandwiched between
"anode" and "cathode" diffusion mediums (hereinafter "DM's") or diffusion layers that
are formed from a resilient, conductive, and gas permeable material such as carbon
fabric or paper. The DM's serve as the primary current collectors for the anode and
cathode, as well as provide mechanical support for the MEA. The DM's and MEA's
are pressed between a pair of electronically conductive plates which serve as
secondary current collectors for collecting the current from the primary current
collectors. The plates conduct current between adjacent cells internally of the stack
in the case of bipolar plates and conduct current externally of the stack (in the case
of monopolar plates at the end of the stack).
[0006] The bipolar plates typically include two thin, facing metal sheets. One
of the sheets defines a flow path on one outer surface thereof for delivery of the fuel
to the anode of the MEA. An outer surface of the other sheet defines a flow path for
the oxidant for delivery to the cathode side of the MEA. When the metal sheets are
joined, the joined surfaces define a flow path for a cooling fluid. The plates are
typically produced from a formable metal that provides suitable strength, electrical
conductivity, and corrosion resistance, such as 316L alloy stainless steel, for
example.
[0007] The bipolar plates may include at least one coating applied to the
exterior. Typically, the at least or e coating is applied using a dipping process. During
the dipping process, the bipolar plates are submerged in at least one tank of fluid.
Any amount of fluid that enters the coolant channels significantly affects the contact
resistance and the uniformity of the current distribution throughout the active area of
the bipolar plate, rendering the bipolar plate substantially unsuitable for Stack builds.
Therefore, the coolant channels of the bipolar plates are sealed during the dipping

process. Generally, the fluid is prevented from entering the coolant channels by
manually securing metal seal blocks over the coolant channel headers using a
plurality of fasteners.
[0008] Such seal blocks require the use of additional equipment and tools to
seal the coolant channels from the fluid. The additional equipment is excessively
heavy and easily susceptible to improper installation.
[0009] It would be desirable to produce a container having integrated coolant
seals for militating against entry of a fluid into internal coolant channels of bipolar
plates during a dip coating process, wherein the container is economical to produce
and the complexity of production and use thereof is minimized.
SUMMARY OF THE INVENTION
[0010] According to the present invention, a container having integrated
coolant seals for militating against entry of a fluid into internal coolant channels of
bipolar plates during a dip coating process, wherein the container is economical to
produce and the complexity of production and use thereof is minimized, has
surprisingly been discovered.
[0011] In one embodiment, the container system comprises a first plate; a
second plate spaced from the first plate and movable in respect of the first plate; at
least one rail extending between the first plate and the second plate, the rail having
a plurality of seal blocks disposed thereon; and at least one band adapted to
interconnect the first plate, the second plate, and the seal blocks.
[0012] In another embodiment, the container comprises a first outer plate; a
second outer plate spaced from the first plate; at least one rail extending between
the first outer plate and the second outer plate, the rail having a plurality of seal
blocks disposed thereon; a first inner plate disposed on the rail; a second inner plate
spaced from the first inner plate and linearly movable in respect to the first inner
plate, wherein the first inner plate and the second inner plate are disposed on the rail
intermediate the first outer plate and the second outer plate, and wherein the seal

blocks are disposed on the rail intermediate the first inner plate and the second inner
plate; and a band adapted to interconnect the first inner plate, the second inner
plate, the first outer plate, and the steal blocks.
[0013] In another embodiment, the container for a dip coating process
comprises a first plate having a plurality of apertures formed therein; a second plate
spaced from the first plate and linearly movable in respect to the first plate, the
second plate having a plurality of apertures formed therein; at least one rail
extending between the first plate and the second plate, the rail having a plurality of
apertures formed therein and a plurality of seal blocks disposed thereon, wherein
each of the seal blocks includes a fastening portion adapted to be received on the
rail and a sealing portion adapted to be removeably attached to the fastening
portion, the sealing portion including at least one seal disposed thereon; a band
adapted to interconnect the first plate, the second plate, and the seal blocks; and a
clamp to militate against movement of the second plate relative to the first plate.
DESCRIPTION OF THE DRAWINGS
[0014] The above features of the invention will become readily apparent to
those skilled in the art from reading the following detailed description of the invention
when considered in the light of the accompanying drawings, in which:
[0015] Fig. 1 is a partially exploded perspective view of a container according
to an embodiment of the present invention, wherein the container is empty and in an
open position;
[0016] Fig. 2 is an enlarged, exploded perspective view of a seal block
according to an embodiment of the present invention;
[0017] Fig. 3 is a perspective view of the container illustrated in Fig. 1, wherein
the container is loaded and in the closed position;
[0018] Fig. 4 is a perspective view of the container illustrated in Figs. 1 and 3
during the drying stage of a coating process, wherein the container is loaded and in
a closed position;

[0019] Fig. 5 is a partially exploded perspective view of a container according
to another embodiment of the invention, wherein the container is partially loaded and
in an open position; and
[0020] Fig. 6 is a perspective view of the container illustrated in Fig. 5, during
the drying stage of a coating process, wherein the container is loaded and in the
closed position.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
[0021] The following detailed description and appended drawings describe and
illustrate various exemplary embociments of the invention. The description and
drawings serve to enable one skilled in the art to make and use the invention, and
are not intended to limit the scope of the invention in any manner. In respect of the
methods disclosed, the steps presented are exemplary in nature, and thus, the order
of the steps is not necessary or crit cal.
[0022] Fig. 1 shows a container 10 according to an embodiment of the
invention. The container 10 includes a first plate 12 and a spaced apart second plate
14. A first guide rail 16 and a spaced apart second guide rail 18 are disposed
between the first plate 12 and the second plate 14. A first support rail 20 and a
spaced apart second support rail 22 also extend between the first plate 12 and the
second plate 14. At least one clamp 24 adapted to militate against movement of the
second plate 14 relative to the first plate 12 is disposed on the container 10. In the
embodiment shown, the clamp 24 is a toggle clamp including a hook portion 26
having a slot 27 formed therein and a latch portion 28 provided with a lever 29
thereon. The hook portion 26 is affixed to the second plate 14 and the latch portion
28 is affixed to one of the guide rails 16,18, by at least one fastener such as a
screw, a bolt, and the like, for example. It is understood that other clamp types can
be employed and affixed elsewhere on the container 10, as desired.
[0023] The plates 12, 14 are generally rectangular in shape, each having a first
end 30 and a second end 32. The ends 30, 32 may include a slot 34 formed in an
outer edge thereof and a leg portion 36 extending downwardly therefrom. The slot

34 is adapted to receive one of the guide rails 16,18 therein. The leg portion 36
includes a protuberance 38 extending laterally outwardly therefrom to form a ledge
39. The ledge 39 is adapted to seat on a lip 40 of a tank 41, shown in Fig. 4. The
tank 41 is adapted to hold a fluid (not shown) such as a cleansing fluid, a rinsing
fluid, and a coating fluid, for example, therein. The plates 12, 14 may include a
handle 42 disposed on an outer surface thereof, a handle 44 disposed on an upper
surface thereof, and a plurality of apertures 46 formed therein to reduce a mass of
the container 10 and allow the fluid to flow therethrough. Any conventional material
may be used to produce the plates 12,14 such as a plastic and a metal, for
example, which is compatible with the fluid.
[0024] The guide rails 16,18 have a first end 48 and a second end 50. A
tenon 52 is formed on the guide rails 16,18 and extends laterally outwardly from an
upper surface and a lower surface of the guide rails 16, 18. The tenon 52 extends
from the first end 48 to the second end 50 of the guide rails 16, 18 substantially
parallel to a longitudinal axis theroof. In the embodiment shown, the first end 48 of
each of the guide rails 16, 18 is d sposed in respective slots 34 of the ends 30, 32 of
the first plate 12 and affixed therein. Apertures 53 are formed by the mating of the
slots 27 of the hook portion 26 of the clamp 24 and the slots 34 of the second plate
14. The second end 50 of each of the guide rails 16, 18 is slideably disposed in
respective apertures 53 of the ends 30, 32 of the second plate 14. The guide rails
16,18 may include a plurality of apertures 54 formed therein to reduce the mass of
the container 10 and allow the flow of the fluid therethrough.
[0025] The support rails 20, 22 include a first end 56 and a second end 58.
Apertures 59 adapted to receive the second end 58 of the support rails 20, 22 are
formed in the ends 30, 32 of the s.econd plate 14. Additional apertures 59 adapted to
receive the first end 56 of the support rails 20, 22 are formed in the ends 30, 32 of
the first plate 12. The first end 56 of each of the support rails 20, 22 is disposed in
respective apertures 59 of the ends 30, 32 of the first plate 12 and affixed therein.

The second end 58 of each the support rails 20, 22 is slideably disposed in
respective apertures 59 of the erds 30, 32 of the second plate 14.
[0026] A plurality of spacec apart seal blocks 60, as shown in Fig. 2, is
disposed on the guide rails 16, 13. The seal blocks 60 and the plates 12, 14 are
interconnected by at least one band 61. The band 61 is adapted to cause the seal
blocks 60 to separate when the container 10 is returned to an open position. The
band 61 is produced from a flexible material such as polyethylene terephthalate
(PET), for example. In the embodiment shown, the band 61 is affixed to the seal
blocks 60 and the plates 12, 14 by a plurality of fasteners. It is understood that the
band 61 can be affixed by any conventional method such as gluing and the like, for
example.
[0027] As clearly illustrated in Fig. 2, each seal block 60 includes a fastening
portion 62 and a sealing portion 64. The fastening portion 62, adapted to facilitate
an interchange of the sealing portion 64, is slideably disposed on one of the guide
rails 16, 18. It is understood that the fastening portion 62 and the sealing portion 64
can be joined by any conventional method, or the seal block 60 can be formed as a
unitary piece, if desired. A first elongate mortise 66 is formed in an edge of the
fastening portion 62. The mortise 66 is adapted to receive the tenon 52 of the guide
rails 16, 18 therein. An interlocking joint is created by the mating of the tenon 52
and the first mortise 66. A second mortise 68 formed in another edge of the
fastening portion 62 extends substantially parallel to a vertical axis thereof. The
second mortise 68 includes an upoer portion having a cavity 70 formed therein.
[0028] The sealing portion 64 is generally rectangular in shape and includes a
tenon 72 formed on an edge thereof. The tenon 72 extends substantially parallel to a
vertical axis of the sealing portion 64 and is adapted to be received in the mortise 68
of the fastening portion 62. An interlocking joint is created by the mating of the
mortise 68 and the tenon 72. A tab 74 extends laterally outwardly from the tenon 72
and is adapted to be received in the cavity 70 of the fastening portion 62. The tab
74 is formed to facilitate an alignment of the fastening portion 62 with the sealing

portion 64 and a retention therewith. In the embodiment shown, a seal 76 (also
illustrated by phantom lines) is disposed on a periphery of at least one of a first face
and a second face of the sealing portion 64 of the seal blocks 60. The seal 76 may
be produced from any conventional material such as rubber, for example. In the
embodiment shown, the seal blocks 60 are produced from polytretrafluoroethylene
(PTFE) to facilitate slideable contact with the guide rails 16, 18 and militate against
an accumulation of the fluid. Wher the container 10 is in the open position as shown
in Fig. 1, an opening 78 is formed between each of the adjacent seal blocks 60. The
opening 78 is adapted to receive a bipolar plate 80 therein, as illustrated in Fig. 3.
The bipolar plate 80 includes at least one coolant channel header (not shown)
formed therein.
[0029] The container 10 may include at least one pair of spaced apart arms 82
having a cross-member 84 extenc ing therebetween. In the embodiment shown, the
cross-member 84 is secured to the container 10 by a plurality of fasteners such as
screws, bolts, and the like, for example. The arms 82 having a generally U-shaped
cross-section, are adapted to receive a coupon 86 therein. The coupon 86 is
adapted for testing at least one of an adherence of the fluid to the bipolar plate 80 and
a formulation thereof. The coupor 86 is disposed in the arms 82 of the container 10 to
span at least one of the apertures 46 formed in the plates 12,14 to facilitate surface
contact with the fluid. A closure 88 is adapted to removeably secure the coupon 86 in
the arms 82. In the embodiment shown, the closure 88 includes a knob 90 affixed to an
end portion 92 slideably disposed in an elongate aperture 100.
[0030] In operation, the coupon 86 is inserted into the arms 82 and secured
therein by the closure 88. The bipolar plates 80 are then disposed in the openings
78 of the container 10 with a bottom edge in slideable contact with the support rails
20, 22. Thereafter, the second plate 14 of the container 10 with the hook portion 26
of the clamp 24 disposed thereon is caused to slide along the guide rails 16,18 in a
direction towards the first plate 12, thereby causing the seal 76 of each of the seal
blocks 60 to contact a surface of the bipolar plates 80 surrounding the coolant

channel header of each of the bipolar plates 80. The latch portion 28 of the clamp
24 is positioned on the hook portion 26 of the clamp 24. The lever 29 of clamp 24 is
then actuated to urge the second plate 14 towards the first plate 12 and move the
container 10 to a closed position, as shown in Fig. 4. The actuation of clamp 24
compresses the bipolar plates 80 between the seal blocks 60 to form a substantially
fluid-tight seal therebetween.
[0031] Using the handle 44 disposed on the plates 12, 14, the container 10
including the bipolar plates 80 is lifted and disposed in the tank 41 of fluid.
Thereafter, as illustrated in Fig. 4, the container 10 is removed from the tank 41 and
the ledge 39 is seated on the lip 40 of the tank 41. Excess fluid is caused to drain by
gravity and drip from the container' 0 and the bipolar plates 80 into the tank 41. Any
remaining fluid on the bipolar plates 80 is allowed to dry. It is understood that the
container 10 can be disposed in additional tanks of other fluids during the dip coating
process as desired. Once the fluid has dried, the clamp 24 is released. The second
plate 14 is caused to move in an opposite direction away from the first plate 12,
permitting the bipolar plates 80 anc the seal blocks 60 to separate, and return the
container 10 to the open position. The handle 42 disposed on the plates 12, 14 of
the container 10 may be used to assist in opening the container 10, if desired. The
bipolar plates 80 are removed from the container 10 and the coupon 86 is removed
from the arms 82.
[0032] Figs. 5 and 6 show another embodiment of the invention which includes a
container similar to that shown in Figs. 1, 3, and 4. Reference numerals for similar
structure in respect of the description of Figs. 1,2,3, and 4 are repeated in Figs. 5 and
6 with a prime (') symbol.
[0033] Fig. 5 shows a continer 10'. The container 10' includes a first outer
plate 12' and a spaced apart second outer plate 14'. A first guide rail 16' and a
spaced apart second guide rail 18' are disposed between the first plate 12' and the
second plate 14'. A first support rail 20' and a spaced apart second support rail 22'
also extend between the first plate 12' and the second plate 14'. The container 10'

also includes a first inner plate 110 and a spaced apart second inner plate 112
disposed on the guide rails 16', 18'. At least one clamp 24', adapted to militate
against movement of the second inner plate 112 relative to the first inner plate 110,
is disposed on the container 10'. In the embodiment shown, the clamp 24' is a
toggle clamp including a hook portion 26' having a slot 27' formed therein and a latch
portion 28' provided with a lever 29' thereon It is understood that other clamps types
can be employed and affixed elsewhere on the container 10', as desired.
[0034] The outer plates 12', 14' are generally rectangular in shape, each
having a first end 30' and a second end 32'. The ends 30', 32' may include a slot 34'
formed in an outer edge thereof and a leg portion 36' extending downwardly
therefrom. The slot 34' is adaptec to receive one of the guide rails 16', 18' therein.
The leg portion 36' includes a protuberance 38' extending laterally outwardly
therefrom to form a ledge 39'. The ledge 39' is adapted to seat on a lip 40' of a tank
41', shown in Fig. 6. The tank 41' is adapted to hold a fluid (not shown) such as a
cleansing fluid, a rinsing fluid, and a coating fluid, for example, therein. The outer
plates 12', 14' may include a handle 44' disposed on an upper surface thereof and a
plurality of apertures 46' formed therein to reduce a mass of the container 10' and
allow the fluid to flow therethrougn. Any conventional material may be used to
produce the outer plates 12', 14' such as a plastic and a metal, for example, which is
compatible with the fluid.
[0035] The guide rails 16', 18' have a first end 48' and a second end 50'. A
tenon 52' is formed on the guide rails 16', 18' and extends laterally outwardly from an
upper surface and a lower surface of the guide rails 16', 18'. The tenon 52' extends
from the first end 48' to the second end 50' of the guide rails 16', 18' substantially
parallel to the longitudinal axis thereof. In the embodiment shown, the ends 48', 50'
of each of the guide rails 16', 18' are disposed in respective slots 34' of the ends 30',
32' of each of the outer plates 12', 14' and, affixed therein. The guide rails 16', 18'
may include a plurality of apertu 'es 54' formed therein to reduce the mass of the
container 10' and allow the flow of the fluid therethrough.

[0036] The support rails 20', 22' include a first end 56' and a second end 58'.
Apertures (not shown), adapted :o receive the first end 56' of the support rails 20',
22', are formed in the ends 30', 32' of the outer plate 12'. Additional apertures,
adapted to receive the second end 58' of the support rails 20", 22', are formed in the
ends 30', 32' of the outer plate 14'. In the embodiment shown, the ends 56', 58' of
each of the support rails 20', 22' are disposed in respective apertures of the ends
30', 32' of each of the outer plates 12', 14' and affixed therein.
[0037] The inner plates 11D, 112 are generally rectangular in shape, each
having a first end 114 and a second end 116. The ends 114, 116 may include a slot
118 formed in an outer edge thereof. In the embodiment shown, each slot 118 of
the first inner plate 110 cooperaves with an indentation (not shown) formed in the
first end 48' of each of the guide rails 16', 18' to secure the first inner plate 110
thereto. Apertures 122 are formed by the mating of the slots 27' of the hook portion
26' of the clamp 24' and the slots 118 of the second inner plate 112. The second
end 50' of each of the guide rails 16', 18' is slideably disposed in the aperture 122.
The inner plates 110, 112 may include a plurality of apertures 123 formed therein to
reduce the mass of the container 10' and allow the flow of the fluid therethrough. Any
conventional material may be used to produce the inner plates 110,112 such as a
plastic and a metal, for example, which is compatible with the fluid.
[0038] A plurality of spaced apart seal blocks 60' is disposed on the guide rails
16', 18' intermediate the inner plates 110,112. The seal blocks 60', the inner plates
110,112, and the outer plate 12 are interconnected by at least one band 61'. The
band 61' is adapted to cause the seal blocks 60' to separate when the container 10'
is returned to an open position. The band 61' is produced from a flexible material
such as polyethylene terephthalate (PET), for example. In the embodiment shown,
the band 61' is affixed to the seal blocks 60' and the plates 110, 112, 12' by a
plurality of fasteners. It is understood that the band 61' can be affixed by any
conventional method such as gluing and the like, for example.

[0039] Each seal block 60' includes a fastening portion 62" and a sealing
portion 64'. The fastening portion 62', adapted to facilitate an interchange of the
sealing portion 64', is slideably disposed on one of the guide rails 16', 18". An
elongate mortise (not shown) is formed in an edge of the fastening portion 62'. The
mortise is adapted to receive the tenon 52' of the guide rails 16', 18' therein. An
interlocking joint is created by the mating of the tenon 52' and the mortise.
[0040] In the embodiment shown, the sealing portion 64' is generally
rectangular in shape and include * a seal 76' disposed on a periphery of at least one
of a first face and a second face hereof. The seal 76' may be produced from any
conventional material such as rubber, for example. In the embodiment shown, the
seal blocks 60' are produced fron polytretrafluoroethylene (PTFE) to facilitate
slideable contact with the guide rails 16', 18' and militate against an accumulation of
the fluid. When the container 10' is in the open position, an opening 78' is formed
between each of the adjacent seal blocks 60'. The opening 78' is adapted to receive
a bipolar plate 80' therein. The bipolar plate 80' includes at least one coolant
channel header (not shown) formed therein.
[0041] The container 10' may include at least one pair of spaced apart arms 82'
having a cross-member 84" extending therebetween. In the embodiment shown, the
cross-member 84" is secured to the container 10' by a plurality of fasteners such as
screws, bolts, and the like, for example. The arms 82' having a generally U-shaped
cross-section, are adapted to receive a coupon 86' therein. The coupon 86' is adapted
for testing at least one of an adherence of the fluid to the bipolar plates 80' and a
formulation thereof. The coupon 36' is disposed in the arms 82' of the container 10' to
span at least one of the apertures 46' formed in the inner plates 12', 14' to facilitate
surface contact with the fluid. A closure 88' is adapted to removeably secure the
coupon 86* in the arms 82'. In thv. embodiment shown, the closure 88' includes a knob
90' affixed to an end portion 92' s ideably disposed in an elongate aperture 100".
[0042] In operation, the coupon 86' is inserted into the arms 82' and secured
therein by the closure 88'. Bipolar plates 80' are disposed in the openings 78' of the

container 10' with a bottom edge in slideable contact with the support rails 20', 22'.
Thereafter, the second inner plate. 112 of the container 10' with the hook portion 26'
of the clamp 24' disposed thereor is caused to slide along the guide rails 16', 18' in a
direction towards the first inner plate 110, thereby causing the seal 76' of each of the
seal blocks 60' to contact a surface of the bipolar plates 80' surrounding the coolant
channel header of each of the bipolar plates 80'. The latch portion 28' of the clamp
24' is positioned on the hook portion 26' of the clamp 24'. The lever 29' of clamp 24'
is then actuated to urge the second inner plate 112 towards the first inner plate 110
and move the container 10' to a closed position, as shown in Fig. 6. The actuation of
clamp 24' compresses the bipolar plates 80' between the seal blocks 60' to form a
substantially fluid-tight seal therebetween.
[0043] Using the handle 44' disposed on the outer plates 12', 14', the
container 10' including the bipolar plates 80' is lifted and disposed in the tank 41' of
fluid. Thereafter, the container 10' is removed from the tank 41' and the ledge 39' is
seated on the lip 40' of the tank 41'. Excess fluid is caused to drain by gravity and
drip from the container 10' and the bipolar plates 80' into the tank 41'. Any remaining
fluid on the bipolar plates 80' is allowed to dry. It is understood that the container 10'
can be disposed in additional tanks of other fluids during the dip coating process as
desired. Once the fluid has driec, the clamp 24' is released. The second inner plate
112 is caused to move in an opposite direction away from the first inner plate 110,
permitting the bipolar plates 80' and the seal blocks 60' to separate, and return the
container 10' to the open position. The bipolar plates 80' are removed from the
container 10' and the coupon 86' is removed from the arms 82'.
[0044] In another embodiment of the invention (not shown), a container includes
a plurality of spaced apart seal blocks. The seal blocks are interconnected by at
least one band. Each seal block includes a fastening portion and a sealing portion.
The fastening portion is adaptec to facilitate an interchange of the sealing portion.
When the container is in an open position, an opening is formed between each of
the adjacent seal blocks. The opening is adapted to receive a bipolar plate therein.

The bipolar plate includes at leas: one coolant channel header formed therein. At
least one seal formed on the bipolar plate is adapted to surround the at least one
coolant channel header.
[0045] In operation, the bipolar plates are disposed in the openings of the
container. Thereafter, the container is caused to move to a closed position, thereby
causing the sealing portion of each of the seal blocks to contact the seal surrounding
the coolant channel header of each of the bipolar plates to form a substantially fluid-
tight seal therebetween.
[0046] From the foregoing description, one ordinarily skilled in the art can
easily ascertain the essential characteristics of this invention and, without departing
from the spirit and scope thereof make various changes and modifications to the
invention to adapt it to various usages and conditions.

WHAT IS CLAIMED IS:
1. A container comprising:
a first plate;
a second plate spaced from the first plate and movable in respect of the
first plate;
at least one rail extending between the first plate and the second plate,
the rail having a plurality of seal blocks disposed thereon; and
at least one band adabted to interconnect the first plate, the second plate,
and the seal blocks.
2. The container according to Claim 1, wherein the second plate is
linearly movable in respect of the first plate.
3. The container according to Claim 1, wherein at least one of the first
plate, the second plate, and the rails includes a plurality of apertures
formed therein.
4. The container according to Claim 1, wherein each of the seal blocks
includes at least one seal disposed thereon.
5. The container according to Claim 1, wherein each of the seal blocks
includes a fastening portion adapted to be received on the rail and a
sealing portion adapted to be removeably attached to the fastening
portion.
6. The container according to Claim 5, wherein the sealing portion of the
seal blocks includes at least one seal disposed thereon.

7. The container according to Claim 1 wherein the seal blocks are
produced from polytetrafluoroethylene.
8. The container according to Claim 1, further comprising a clamp to
militate against movement of the second plate relative to the first plate.
9. The container acco ding to Claim 1, wherein the band is produced from
polyethylene terephthalate.
10. A container comprising:
a first outer plate;
a second outer plate spaced from the first outer plate;
at least one rail extending between the first outer plate and the second
outer plate, the rail having a plurality of seal blocks disposed
thereon;
a first inner plate disposed on the rail;
a second inner plate spaced from the first inner plate and linearly movable
in respect to the first inner plate, wherein the first inner plate and
the second inrer plate are disposed on the rail intermediate the first
outer plate and the second outer plate, and wherein the seal blocks
are disposed on the rail intermediate the first inner plate and the
second inner plate; and
a band adapted to interconnect the first inner plate, the second inner
plate, the first outer plate, and the seal blocks.
11.The container according to Claim 10, wherein the band is produced
from polyethylene terephthalate.

12. The container acco ding to Claim 10, wherein at least one of the first
inner plate, the second inner plate, the first outer plate, the second outer
plate, and the rails includes a plurality of apertures formed therein.
13. The container according to Claim 10, wherein each of the seal blocks
includes at least one seal disposed thereon.
14. The container according to Claim 10, wherein each of the seal blocks
includes a fastening portion adapted to be received on the rail and a
sealing portion adapted to be removeably attached to the fastening
portion.
15. The container according to Claim 14, wherein the sealing portion of the
seal blocks includes a: least one seal disposed thereon.
16. The container according to Claim 10, wherein the seal blocks are
produced from polytet afluoroethylene.
17. The container according to Claim 10, further comprising a clamp to
militate against movement of the second inner plate relative to the first
inner plate.

18. A container for a dip coating process comprising:
a first plate having a plurality of apertures formed therein;
a second plate spaced from the first plate and linearly movable in respect
to the first plate, the second plate having a plurality of apertures
formed therein;
at least one rail extending between the first plate and the second plate, the
rail having a plurality of apertures formed therein and a plurality of
seal blocks disposed thereon, wherein each of the seal blocks
includes a fastening portion adapted to be received on the rail and
a sealing portion adapted to be removeably attached to the
fastening portion, the sealing portion including at least one seal
disposed thereon;
a band adapted to interconnect the first plate, the second plate, and the
seal blocks; and
a clamp to militate against movement of the second plate relative to the
first plate.
19. The container for a dip coating process according to Claim 18, wherein
the seal blocks are produced from polytetrafluoroethylene.
20. The container for a dip coating process according to Claim 18, wherein
the band is produced from polyethylene terephthalate.

A container is disclosed including a plurality of seal blocks adapted to militate against the entry of a fluid into coolant channel headers formed in bipolar plates during a dip coating process, wherein the seal blocks are interconnected and include a fastening portion and a sealing portion, the sealing portion capable of being interchanged.

Documents:

2211-KOL-2008-(06-06-2014)-ABSTRACT.pdf

2211-KOL-2008-(06-06-2014)-CLAIMS.pdf

2211-KOL-2008-(06-06-2014)-CORRESPONDENCE.pdf

2211-KOL-2008-(06-06-2014)-DESCRIPTION (COMPLETE).pdf

2211-KOL-2008-(06-06-2014)-DRAWINGS.pdf

2211-KOL-2008-(06-06-2014)-FORM-1.pdf

2211-KOL-2008-(06-06-2014)-FORM-13.pdf

2211-KOL-2008-(06-06-2014)-FORM-2.pdf

2211-KOL-2008-(06-06-2014)-FORM-3.pdf

2211-KOL-2008-(06-06-2014)-OTHERS.pdf

2211-kol-2008-abstract.pdf

2211-KOL-2008-ASSIGNMENT.pdf

2211-kol-2008-claims.pdf

2211-kol-2008-CORRESPONDENCE-1.1.pdf

2211-KOL-2008-CORRESPONDENCE-1.2.pdf

2211-kol-2008-correspondence.pdf

2211-kol-2008-description (complete).pdf

2211-kol-2008-drawings.pdf

2211-kol-2008-form 1.pdf

2211-kol-2008-form 18.pdf

2211-kol-2008-form 2.pdf

2211-kol-2008-form 3.pdf

2211-kol-2008-gpa.pdf

2211-KOL-2008-OTHERS.pdf

2211-kol-2008-specification.pdf

2211-kol-2008-TRANSLATED COPY OF PRIORITY DOCUMENT.pdf

abstract-2211-kol-2008.jpg


Patent Number 263516
Indian Patent Application Number 2211/KOL/2008
PG Journal Number 44/2014
Publication Date 31-Oct-2014
Grant Date 31-Oct-2014
Date of Filing 24-Dec-2008
Name of Patentee GM GLOBAL TECHNOLOGY OPERATIONS, INC.
Applicant Address 300 GM RENAISSANCE CENTER DETROIT, MICHIGAN
Inventors:
# Inventor's Name Inventor's Address
1 MARK W. KEYSER 26 SOUTH AVENUE BLOOMFIELD, NEW YORK 14469
2 JEFFREY M. GUZDA 18 CONTESSA COURT, SPENCERPORT, NEW YORK 14559
3 TIMOTHY WILLIAM ROWE 815 PALMER ROAD CHURCHVILLE, NEW YORK 14428
4 STEVEN J. SPENCER 19 MARC-MAR TRAIL ROCHESTER, NEW YORK 14606
PCT International Classification Number H01M8/00
PCT International Application Number N/A
PCT International Filing date
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 11/972,360 2008-01-10 U.S.A.