| Title of Invention | COMBINED STOP AND CONTROL VALVE FOR SUPPLYING STEAM. |
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| Abstract | The steam valve (10) includes a fast-acting control valve (17) and stop valve (19) acting against a valve seat (21) in a steam flow passage in a closed position. An outlet passage (50) below the valve seat has transition walls therebetween, affording a smooth, continuous flow past the seat into an outlet whereby head losses are reduced. An annular screen (54) about the valve has support structure (56) recessed in the walls of the inlet to reduce flow blockage and vortex formation. A balance chamber (60) disposed above the control valve has a bleed hole (62) for equalizing steam pressure in the balance chamber and steam valve which inhibits depressurization of the balance chamber and facilitates fast closing of the control valve. Buttress threads (66) interconnect the control valve stem and the control valve head to preclude binding of those parts due to oxide buildup. |
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395-KOL-2003-(03-04-2012)-CORRESPONDENCE.pdf
395-KOL-2003-(03-04-2012)-FORM-27.pdf
395-KOL-2003-(03-04-2012)-PA-CERTIFIED COPIES.pdf
| Patent Number | 219357 | ||||||||||||
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| Indian Patent Application Number | 395/KOL/2003 | ||||||||||||
| PG Journal Number | 18/2008 | ||||||||||||
| Publication Date | 02-May-2008 | ||||||||||||
| Grant Date | 30-Apr-2008 | ||||||||||||
| Date of Filing | 21-Jul-2003 | ||||||||||||
| Name of Patentee | GENERAL ELECTRIC COMPANY, | ||||||||||||
| Applicant Address | 1 RIVER ROAD, SCHENECTADY NEW YORK 123445 , U.S.A. | ||||||||||||
Inventors:
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| PCT International Classification Number | F16K 1/08 | ||||||||||||
| PCT International Application Number | N/A | ||||||||||||
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