Patent ID: 6685167
Filing Date: 2004-02-03
Classification: F16K

Abstract:
A valve apparatus, comprising:(A) a housing; (B) an inner seat held within said housing; (C) an inner plug head operating within said inner seat; said inner plug head fixed to a plug stem; (D) an outer plug head within said housing; (E) an outer seat within said housing adapted to interact with said outer plug head; and (F) and a plug head band, having a first side and a second side, said plug head band being located about said plug stem and about said outer plug; a first compliant ring fixed about said plug stem and between said inner plug head and said first side of said plug head band and a second side of siad plug head band, wherein said complaint rings are affixed about said plug stem to provide support for said plug stem and to facilitate mating of said outer plug head with said outer seat.