Patent ID: 6814639
Filing Date: 2004-11-09
Classification: F16K

Abstract:
An air valve for an inflatable device, comprising:a housing having an upper end, a lower end, and an opening extending between the upper and lower ends, the lower end being sealingly attached to the inflatable device; a check valve having a body member with an upper end, a lower end, an outer surface disposed to be selectively matingly received in the opening of the housing, and an inner surface defining a passageway; and a cap having an upper end, a lower end, and an outer surface disposed to be selectively matingly received in the passageway of the check valve wherein the check valve includes a perforated plate disposed at the lower end of the body member, and a back pressure ring disposed to selectively engage the plate when pressure within the inflatable device exceeds pressure applied from outside the inflatable device.