Title of Invention	A TRAINING AID FOR GRENADE LOBBING
Abstract	abstract The invention relates to a training aid for grenade lobbing. It comprises of a shell body provided with vent means and a base opening, closure means for the said opening having mounted thereon a cartridge. An activating means is also provided for activating the said cartridge, an actuating means for the said activating mean , and means for holding the said activating and actuating means in position.

Title of Invention

A TRAINING AID FOR GRENADE LOBBING

Abstract

abstract The invention relates to a training aid for grenade lobbing. It comprises of a shell body provided with vent means and a base opening, closure means for the said opening having mounted thereon a cartridge. An activating means is also provided for activating the said cartridge, an actuating means for the said activating mean , and means for holding the said activating and actuating means in position.

Full Text	simulated grenade. This consists of a rod with a groove corresponding to the tapering pin of the striker pin. The other end of the arming tool has two pins which facilitates the base plug to be fixed into the base opening. Priming is carried out by pushing the striker pin through the guiding tube to insert the safety lever into the groove of the striker pin, with the help of arming tool. When the safety pin is removed, the grenade is lobbed from the desired height or distance. The tapered pin of the striker pin pierces through the cartridge, strikes the explosive because of the release of the spring hitherto held compressed. This initiates the delayed explosion and the actual explosion occurs within 4 to 7 seconds thereafter. The gases escape through the vent holes provided on the shell. Due to the high impact resistance of the alloy, the shell remains intact and can be reused after loading with a fresh cartridge. The training aid for grenade lobbing according to this invention comprises a shell body provided with vent means and a base opening, closure means for the said opening having mounted thereon a cartridge, activating means for activating the cartridge, an actuating means for the said activating means and means for holding the said activating and actuating means in position. The invention will now be described with reference to Figures I and II of the accompanying drawings. Fig I is a sectional view of the training aid of the invention in the assembled state. Reference letter B indicates the base plate which closes the base opening of the grenade shell G. Guide tube GT houses the striker pin SP having its pin pointed end resting on the pyrotechnic cartridge indicated by PC. S is the spring which holds the striker pin under tension within the guide tube. SL is the lever assembly holding the striking pin in position and which when released actuates the spring loaded striker. In figure II the parts of the assembly housed within the shell are shown separately for the sake of clarity. G represents the shell of the grenade, BO the base opening thereof, VH the vent holes provided thereon, L indicates the lever of the lever assembly while SP shows the safety pin assembly which holds the lever assembly in position. Other reference letters indicate the same parts as those described with reference to figure I. We claim: 1. A training aid for grenade lobbing comprising a shell body provided with vent means and a base opening, closure means for the said opening having mounted thereon a cartridge, activating means for activating the said cartride, an actuating means for the said activating means, and means for holding the said activating and actuating means in position. 2. The training aid as claimed in claim 1, wherein the shell body is made of high impact resistant alloy 3. The training aid is claimed in claims 1 and 2 wherein the activating means is a spring loaded striker pin housed in a guide tube. 4. The training aid as claimed in claim 3 wherein one end of the striker pin is tapered and the other end is grooved. 5. The training aid as claimed in claims 1 to 4 wherein the actuating means is a lever and safety pin assembly. 6. The training aid as claimed in claim 5 wherein the lever assembly is held by the groove of the striker pin. 7. The training aid as claimed in claim 1 wherein the base opening is internally threaded and the closure means is correspondingly threaded externally. 8. The training aid as claimed in claim 1 wherein the means to hold the activating and actuating means is a detachable arming .. tool having a groove at one end and two projections at the other end . 9. The training aid as claimed in any of the above claims wherein the cartridge consists of polypropylene. 10. A training aid for grenade lobbing substantially as herein described with reference to the accompanying drawings.

Full Text

simulated grenade. This consists of a rod with a groove corresponding to the tapering pin of the striker pin. The other end of the arming tool has two pins which facilitates the base plug to be fixed into the base opening. Priming is carried out by pushing the striker pin through the guiding tube to insert the safety lever into the groove of the striker pin, with the help of arming tool. When the safety pin is removed, the grenade is lobbed from the desired height or distance. The tapered pin of the striker pin pierces through the cartridge, strikes the explosive because of the release of the spring hitherto held compressed. This initiates the delayed explosion and the actual explosion occurs within 4 to 7 seconds thereafter. The gases escape through the vent holes provided on the shell. Due to the high impact resistance of the alloy, the shell remains intact and can be reused after loading with a fresh cartridge.
The training aid for grenade lobbing according to this invention comprises a shell body provided with vent means and a base opening, closure means for the said opening having mounted thereon a cartridge, activating means for activating the cartridge, an actuating means for the said activating means and means for holding the said activating and actuating means in position.

The invention will now be described with reference to Figures I and II of the accompanying drawings.
Fig I is a sectional view of the training aid of the invention in the assembled state. Reference letter B indicates the base plate which closes the base opening of the grenade shell G. Guide tube GT houses the striker pin SP having its pin pointed end resting on the pyrotechnic cartridge indicated by PC. S is the spring which holds the striker pin under tension within the guide tube. SL is the lever assembly holding the striking pin in position and which when released actuates the spring loaded striker.
In figure II the parts of the assembly housed within the shell are shown separately for the sake of clarity. G represents the shell of the grenade, BO the base opening thereof, VH the vent holes provided thereon, L indicates the lever of the lever assembly while SP shows the safety pin assembly which holds the lever assembly in position. Other reference letters indicate the same parts as those described with reference to figure I.

We claim:
1. A training aid for grenade lobbing comprising a shell body provided with vent means and a base opening, closure means for the said opening having mounted thereon a cartridge, activating means for activating the said cartride, an actuating means for the said activating means, and means for holding the said activating and actuating means in position.
2. The training aid as claimed in claim 1, wherein the shell body is made of high impact resistant alloy
3. The training aid is claimed in claims 1 and 2 wherein the activating means is a spring loaded striker pin housed in a guide tube.
4. The training aid as claimed in claim 3 wherein one end of the striker pin is tapered and the other end is grooved.
5. The training aid as claimed in claims 1 to 4 wherein the actuating means is a lever and safety pin assembly.

6. The training aid as claimed in claim 5 wherein the lever
assembly is held by the groove of the striker pin.
7. The training aid as claimed in claim 1 wherein the base
opening is internally threaded and the closure means is
correspondingly threaded externally.
8. The training aid as claimed in claim 1 wherein the means to
hold the activating and actuating means is a detachable arming
.. tool having a groove at one end and two projections at the other end .
9. The training aid as claimed in any of the above claims
wherein the cartridge consists of polypropylene.
10. A training aid for grenade lobbing substantially as herein
described with reference to the accompanying drawings.

Documents:

246-mas-95-abstract.pdf

246-mas-95-claims.pdf

246-mas-95-correspondence-others.pdf

246-mas-95-correspondence-po.pdf

246-mas-95-description-complete.pdf

246-mas-95-drawings.pdf

246-mas-95-form-1.pdf

246-mas-95-form-26.pdf

246-mas-95-form-61.pdf

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Patent Number

188135

Indian Patent Application Number

246/MAS/1995

PG Journal Number

30/2009

Publication Date

24-Jul-2009

Grant Date

11-Apr-2003

Date of Filing

28-Feb-1995

Name of Patentee

M/S. ZEN TECHNOLOGIES AND COMPUTERS LIMITED

Applicant Address

135 CHANDRALOK COMPLEX-III, PARADISE, SECUNDERABAD 500 003

Inventors:

#	Inventor's Name	Inventor's Address
1	MIDATHALA RAVI KUMAR	135 CHANDRALOK COMPLEX-III, PARADISE, SECUNDERABAD 500 003
2	ATLURI KISHORE DUTT	135 CHANDRALOK COMPLEX-III, PARADISE, SECUNDERABAD 500 003

PCT International Classification Number

F42B 27/00

PCT International Application Number

N/A

PCT International Filing date

PCT Conventions:

#	PCT Application Number	Date of Convention	Priority Country
1			NA