Aerosol valve with a surfactant impregnated valve seal
Patent 5427282 Issued on June 27, 1995. Estimated Expiration Date: 
June 17, 2014. 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.
June 17, 2014. 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 3560607 Pressure pack valve for dispensing particulate materials Impregnated soft substance gasket Sediment baffle for valves of pressurized containers Patent #: 4944433 InventorsApplicationNo. 256067 filed on 06/17/1994US Classes:222/402.1, Valve actuated by nozzle or through valve outlet277/500, Circumferential contact seal for other than piston277/944, Elastomer or plastic427/384Organic coatingExaminersPrimary: Huson, Gregory L.Attorney, Agent or FirmForeign Patent References
International ClassB65D 083/00AbstractAn aerosol valve having a valve ferrule, a valve stem, and at least one valve seal, in which the valve seal is impregnated with a physiologically acceptable surfactant. The valves of the invention exhibit improved force-to-fire and improved return force compared to valves containing untreated valve seals. | |
