Title of Invention

BALL VALVE OPERATION BY PNEUMATIC TORQUE WRENCH

Abstract

l.The fixture for "PNEUMATIC DRIVE FOR VALVE OPERATION" with the following components a. A hexagonal nut with three slot for fixing locking bolt / grub screw to be fixed over the drive shaft of the valve with shaft key b. A wheel with hexagonal hole at the center and three holes for fixing locking bolt/grub screw. 2. A process in which fixture for "PNEUMATIC DRIVE FOR VALVE OPERATION" with hexagonal nut with three slot for fixing locking bolt / grub screw is being used as claimed in claim 1 wherein a reaction type pneumatic torque wrench is being used for valve operation. 3. A process in which fixture for "PNEUMATIC DRIVE FOR VALVE OPERATION" with hexagonal nut with three slot for fixing locking bolt / grub screw is being used as claimed in claim 1 wherein a impulse type pneumatic torque wrench is being used for valve operation. 4.The fixture for "PNEUMATIC DRIVE FOR CHAIN PULLEY OPERATION" with the following components c. A hexagonal nut with three slot for fixing locking bolt / grub screw to be fixed over the drive shaft of the chain pulley with shaft key. d. A chain wheel with hexagonal hole at the center and three holes for fixing locking bolt / grub screw. 5. A process in which fixture for "PNEUMATIC DRIVE FOR CHAIN PULLEY OPERATION" with hexagonal nut with three slot for fixing locking bolt / grub screw as claimed in claim 4 wherein a reaction type pneumatic torque wrench is being used for chain pulley operation. 6. A process in which fixture for "PNEUMATIC DRIVE FOR CHAIN PULLEY OPERATION" with hexagonal nut with three slot for fixing locking bolt / grub screw

Full Text

COMPLETE AFTER PROVISIONAL LEFT ON 1.4.2004 FORM 2 THE PATENTS ACT, 1970 (39 of 1970) COMPELETE SPECIFICATION [Section 10; rule 13] PNEUMATIC DRIVE FOR VALVE OPERATION M/s Bassein and Satellite asset Of OIL AND NATURAL GAS CARPORATION QMITED, Vasundra Bhavan, Bandra (East), Mumbai-400051. An Indian Company. The following specification particularly describes the nature of the invention and the manner in which it is to be perfomed. as claimed in claim 4 wherein a impact type pneumatic torque wrench is being used for chain pulley operation. Dated 31 st day of March 2004 M. P. MIRCHANDANI (Attorney for the applicant) 2 PNEUMATIC DRIVE FOR VALVE OPERATION This invention relates to "PNEUMATIC DRIVE FOR VALVE OPERATION" wherein the wheel used for manual operation has been retrofitted with a specially developed fixture to enable the valve operation /chain pulley through, both reaction type and impact type pneumatic torque wrench, which is more useful for very large size valve as well as through manual wheel operation. Almost all the ball valves at process industries are fitted with manual gear mechanism for opening and closing of the valves. The bigger sized manually operated valves are fitted with chain and chain-wheel arrangement for opening and closing of the valves. This made the valve opening/closing very laborious and time consuming. Manually operated chain pulleys are fitted with chain wheels which is difficult to operate during rig up time. This makes the chain pulley operation more laborious and time consuming. To overcome the above disadvantage and limitations of the manually operated valves and manually operated chain pulleys a pneumatic drive for valve operation and a pneumatic drive for chain pulley.qperation as been developed. This invention can be described with respect to the drawing attached with this specification wherein Figure - 1 illustrates the plan sectional schematic view of hexagonal nut fixture developed for the" PNEUMATIC DRIVE FOR VALVE OPERATION" wherein 1. illustrates grove for locking bolt / grub screw, 2. illustrates key slot. Figure - 2 illustrates the isometric schematic half sectional view of hexagonal nut fixture developed for the" PNEUMATIC DRIVE FOR VALVE OPERATION" wherein 1. illustrates grove for locking bolt / grub screw, 2. illustrates key slot. Figure - 3 illustrates the front schematic view of the manual operating wheel developed for the "PNEUMATIC DRIVE FOR VALVE OPERATION" wherein 1. illustrates 3 hexagonal hole and wherein 2. illustrates three threaded hole each symmetrically placed for locking nut / grub screw. Figure - 4 illustrates the isometric schematic cut sectional view of the manual operating wheel developed for the "PNEUMATIC DRIVE FOR VALVE OPERATION" wherein 1. illustrates hexagonal hole and wherein 2. illustrates three threaded hole each symmetrically placed for locking bolt / grub screw. Figure - 5 illustrates the front schematic view of the manual operating wheel developed for the "PNEUMATIC DRIVE FOR CHAIN PULLEY OPERATION" wherein 1. illustrates hexagonal hole and wherein 2. illustrates three threaded hole each symmetrically placed for locking nut / grub screw wherein 3.illustrates slot for chain. Figure - 6 illustrates front schematic view of the assembled view of the manual operating wheel and hexagonal nut fixture developed for the "PNEUMATIC DRIVE FOR VALVE OPERATION" fixture wherein 1. illustrates hexagonal nut of the" PNEUMATIC DRIVE FOR VALVE OPERATION" and wherein 2. illustrates manual operating wheel of the" PNEUMATIC DRIVE FOR VALVE OPERATION". Figure - 7 illustrates front schematic: assembled view of "PNEUMATIC DRIVE FOR VALVE OPERATION" fixture wherein 1. illustrates drive shaft of the valve, wherein 2. illustrates hexagonal nut of the "PNEUMATIC DRIVE FOR VALVE OPERATION" and wherein 3. illustrates manual operating wheel of the" PNEUMATIC DRIVE FOR VALVE OPERATION" wherein 4. illustrates drive shaft key wherein 5. illustrates locking bolt / grub screw. Figure — 8 illustrates front schematic view of the pre art of reaction type pneumatic torque wrench wherein 1. illustrates locking lug. Figure - 9 illustrates front schematic view of the reaction type pneumatic torque wrench mounted over hexagonal nut fixture developed for the" PNEUMATIC DRIVE FOR VALVE OPERATION" wherein 1. illustrates drive shaft of the valve, wherein 2. illustrates hexagonal nut of the "PNEUMATIC DRIVE FOR VALVE OPERATION" and wherein 3. illustrates pre art of reaction type pneumatic torque wrench, wherein 4. illustrates drive shaft key. 4 Figure - 10 illustrates side schematic view of the reaction type pneumatic torque wrench mounted over hexagonal nut fixture developed for the " PNEUMATIC DRIVE FOR VALVE OPERATION" wherein 1. illustrates drive shaft of the valve, wherein 2. illustrates hexagonal nut of the "PNEUMATIC DRIVE FOR VALVE OPERATION" wherein 3. illustrates reaction type pneumatic torque wrench wherein 4. illustrates support lug fitted to the valve gear box wherein 5. illustrates valve gear assembly. Figure -11 illustrates side schematic view of the impact type pneumatic torque wrench mounted over hexagonal nut fixture developed for the" PNEUMATIC DRIVE FOR VALVE OPERATION" wherein 1. illustrates drive shaft of the valve, wherein 2. illustrates hexagonal nut of the "PNEUMATIC DRIVE FOR VALVE OPERATION" wherein 3. illustrates impact type pneumatic torque wrench wherein 4. illustrates box spanner and wherein 5. illustrates valve gear assembly. The operation details of the invention with reference to the Figure - 1 to 11 is as under With a view to operate a valve both by manual and by pneumatic torque wrench, a fixture is developed, in which wheel provided with the valve for its closing and opening operation was replaced by*a. special fixture which has hexagonal nut inside the operating wheel as shown in the figure 5. Manual valve operation In normal manual valve operation the "PNEUMATIC DRIVE FOR VALVE OPERATION" wheel is fixed over the hexagonal nut by means of grub screw / locking bolt and the hexagonal nut was fixed over the valve drive shaft with shaft key as shown in figure 6. By operating the "PNEUMATIC DRIVE FOR VALVE OPERATION" wheel valve can be operated. PNEUMATIC DRIVE FOR VALVE OPERATION With a view to reduce this down time, the wheel (Figure-3) of the "PNEUMATIC DRIVE FOR VALVE OPERATION" was removed from the hexagonal nut(Figure-l) by loosening / removing locking bolt / grub screw (Figure-7 No. 5). hexagonal nut (Figure-3) of "PNEUMATIC DRIVE FOR VALVE OPERATION" was fixed over the drive 5 shaft(Figure-9 No. 1) of the valve with shaft key(Figure-9 No. 4). This hexagonal nut (Figure-9 No. 2) in turn was made to rotate by reaction type pneumatic torque wrench (Figure - 8,9&10) or by impact type torque wrench by using suitable box spanner (Figure -11). Since Bi-directional rotation is possible in both reaction type and impact type pneumatic torque wrench valve can be either opened or closed using either of reaction or impact type torque wrench. CHAIN PULLEY OPERATION. Manual wheel provided for the chain pulley operation can be replaced by the wheel for "PNEUMATIC DRIVE FOR VALVE OPERATION" as shown in the Figure - 5 No.3 MANUAL CHAIN PULLEY OPERATION. In normal manual operation the chain pulley wheel (Figure - 5 No.3) is attached to the drive shaft through hexagonal nut (Figure-3) and lock bolt/grub screw. On rotating the wheel through chain, chain pulley can be operated . PNEUMATIC DRIVE FOR CHAIN PULLEY OPERATION. To operate the chain pulley using pneumatic torque wrench, the chain wheel (Figure - 5 No.3) was removed by loosening or removing locking bolt/grub screw. Only the hexagonal nut (Figure-3) was attached to the drive shaft with shaft key. By rotating the hexagonal nut using box spanner and pneumatic torque wrench the chain pulley can be operated. The invention herein described and illustrated in Figure - 1 to 11 of the drawings accompanying this specification. WE CLAIM l.The fixture for "PNEUMATIC DRIVE FOR VALVE OPERATION" with the following components e. A hexagonal nut with three slot for fixing locking bolt / grub screw to be fixed over the drive shaft of the valve with shaft key f. A wheel with hexagonal hole at the center and three holes for fixing locking bolt / grub screw. 6 2. A process in which fixture for "PNEUMATIC DRIVE FOR VALVE OPERATION" with hexagonal nut with three slot for fixing locking bolt / grub screw is being used as claimed in claim 1 wherein a reaction type pneumatic torque wrench is being used for valve operation. 3. A process in which fixture for "PNEUMATIC DRIVE FOR VALVE OPERATION" with hexagonal nut with three slot for fixing locking bolt / grub screw is being used as claimed in claim 1 wherein a impulse type pneumatic torque wrench is being used for valve operation. 4.The fixture for "PNEUMATIC DRIVE FOR CHAIN PULLEY OPERATION" with the following components g. A hexagonal nut with three slot for fixing locking bolt / grub screw to be fixed over the drive shaft of the chain pulley with shaft key. h. A chain wheel with hexagonal hole at the center and three holes for fixing locking bolt / grub screw. 5. A process in which fixture for^PNEUMATIC DRIVE FOR CHAIN PULLEY OPERATION" with hexagonal nut with three slot for fixing locking bolt / grub screw as claimed in claim 4 wherein a reaction type pneumatic torque wrench is being used for chain pulley operation. 6. A process in which fixture for "PNEUMATIC DRIVE FOR CHAIN PULLEY OPERATION" with hexagonal nut with three slot for fixing locking bolt / grub screw as claimed in claim 4 wherein a impact type pneumatic torque wrench is being used for chain pulley operation. M. P. MIRCHANDANI (Attorney for the applicant) Dated 31 st day of MARCH 2004 7 ABSTRACT l.The fixture for "PNEUMATIC DRIVE FOR VALVE OPERATION" with the following components a. A hexagonal nut with three slot for fixing locking bolt / grub screw to be fixed over the drive shaft of the valve with shaft key b. A wheel with hexagonal hole at the center and three holes for fixing locking bolt/grub screw. 2. A process in which fixture for "PNEUMATIC DRIVE FOR VALVE OPERATION" with hexagonal nut with three slot for fixing locking bolt / grub screw is being used as claimed in claim 1 wherein a reaction type pneumatic torque wrench is being used for valve operation. 3. A process in which fixture for "PNEUMATIC DRIVE FOR VALVE OPERATION" with hexagonal nut with three slot for fixing locking bolt / grub screw is being used as claimed in claim 1 wherein a impulse type pneumatic torque wrench is being used for valve operation. 4.The fixture for "PNEUMATIC DRIVE FOR CHAIN PULLEY OPERATION" with the following components c. A hexagonal nut with three slot for fixing locking bolt / grub screw to be fixed over the drive shaft of the chain pulley with shaft key. d. A chain wheel with hexagonal hole at the center and three holes for fixing locking bolt / grub screw. 5. A process in which fixture for "PNEUMATIC DRIVE FOR CHAIN PULLEY OPERATION" with hexagonal nut with three slot for fixing locking bolt / grub screw as claimed in claim 4 wherein a reaction type pneumatic torque wrench is being used for chain pulley operation. 6. A process in which fixture for "PNEUMATIC DRIVE FOR CHAIN PULLEY OPERATION" with hexagonal nut with three slot for fixing locking bolt / grub screw

Documents:

322-MUM-2003-ABSTRACT(25-07-2008).pdf

322-mum-2003-abstract(28-07-2008).doc

322-mum-2003-abstract(28-07-2008).pdf

322-MUM-2003-ABSTRACT(28-7-2008).pdf

322-mum-2003-abstract.doc

322-mum-2003-abstract.pdf

322-MUM-2003-CLAIMS(25-07-2008).pdf

322-MUM-2003-CLAIMS(28-7-2008).pdf

322-mum-2003-claims(granted)-(27-08-2008).doc

322-mum-2003-claims(granted)-(27-08-2008).pdf

322-mum-2003-claims.doc

322-mum-2003-claims.pdf

322-MUM-2003-CORRESPONDENCE(03-06-2011).pdf

322-MUM-2003-CORRESPONDENCE(25-07-2008).pdf

322-MUM-2003-CORRESPONDENCE(6-7-2010).pdf

322-mum-2003-correspondence(ipo)-(22-12-2008).pdf

322-mum-2003-correspondence-received.pdf

322-mum-2003-description (complete).pdf

322-MUM-2003-DESCRIPTION(COMPLETE)-(28-7-2008).pdf

322-MUM-2003-DRAWING(25-07-2008).pdf

322-mum-2003-drawing(28-07-2008).pdf

322-MUM-2003-DRAWING(28-7-2008).pdf

322-mum-2003-drawings.pdf

322-mum-2003-form 1(01-04-2003).pdf

322-MUM-2003-FORM 15(6-7-2010).pdf

322-mum-2003-form 18(25-09-2006).pdf

322-mum-2003-form 2(28-7-2008).pdf

322-mum-2003-form 2(granted)-(28-07-2008).doc

322-mum-2003-form 2(granted)-(28-07-2008).pdf

322-MUM-2003-FORM 2(TITLE PAGE)-(28-7-2008).pdf

322-mum-2003-form 3(01-04-2004).pdf

322-mum-2003-form 3(31-03-2003).pdf

322-mum-2003-form 5(01-04-2004).pdf

322-mum-2003-form-1.pdf

322-mum-2003-form-2.doc

322-mum-2003-form-2.pdf

322-mum-2003-form-26.pdf

322-mum-2003-form-3.pdf

322-mum-2003-form-5.pdf

322-mum-2003-other documents(24-06-2003).pdf

322-mum-2003-other documents(27-03-2003).pdf

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