Single-leaf valve for gas-fired boilers
Patent 4795340 Issued on January 3, 1989. Estimated Expiration Date: 
December 1, 2007. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
December 1, 2007. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2701950 3286728 InventorAssigneeApplicationNo. 07/141601 filed on 12/01/1987US Classes:431/1COMBUSTION BURSTS OR FLARE-UPS IN PULSES OR SERIAL PATTERNExaminersPrimary: Dority, Carroll B.Attorney, Agent or FirmInternational ClassesF16K 15/16 (20060101)F16K 15/14 (20060101) F23C 15/00 (20060101) Foreign Application Priority Data1986-04-04 FRAbstractSingle-leaf valve for a gas-fired boiler. It is of the type that comprises a combustion chamber (1), a seat (10) for a valve leaf (9), and a single valve leaf (9) for the two constituents, this single valve leaf (9) being flexible and deformable, and being pressed flat against the valve leaf seat (10) when the boiler is not operating, the said seat (10) having two or more grooves (13, 14 (sic), 19), the first of these grooves being an anti-stick groove (19) which serves to prevent the said leaf (9) from sticking to the said seat (10), and the second of these grooves (13, 14 (sic)) communicating with means whereby at least one of the constituents of the mixture is supplied. Application, in particular, to gas-fired boilers of the pulsed-combustion type.Field of SearchWith fluid actuated valve | |
