Patent ID: 8757582
Filing Date: 2014-06-24
Classification: F16K

Abstract:
1. A valve assembly, comprising: (1) a housing extending between a lower first port and an upper second port; (2) a valve body extending into the housing, comprising: (ii) a lower portion extending downward from the upper portion and having a cross sectional diameter less than the upper portion; and (3) a sealing assembly, comprising: (i) a body including an upper surface and a lower surface; (ii) a passage for slidably mounting the primary sealing member to the upper portion; (iii) an aperture adjacent the passage, the aperture extending between the upper surface and the lower surface; and (iv) a seal at the upper surface for creating a sealing relationship between the primary sealing member and the housing first port; and (i) a body including an upper surface and an outer edge; (ii) a passage for mounting the secondary sealing member to the lower portion; (iii) a groove in the upper surface disposed between the passage and outer edge; and (iv) a seal received within the groove for creating a sealing relationship between the secondary sealing member and the primary sealing member lower surface, wherein when the secondary sealing member and primary sealing member are in a sealing relationship the aperture of the primary sealing member falls within the region defined by the second sealing member passage and the second sealing member seal.