|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||137/543.13 ; 137/515.7 ; 137/542|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 10 인용 특허 : 7|
A check valve is positioned in and between opposed tube ends and includes a valve body having a valve seat engageable by a valve element having a stem extending centrally of peripherally spaced apart elements interconnected by an annular end shoulder engaged by a keeper which receives the outer end of the valve stem and holds a coil spring against the valve element. The valve assembly is disassembled by manipulating the keeper against the spring out of engagement with the annular end shoulder.
[ What is claimed is:] [1.] A readily removable valve keeper comprising,a passage way increasing in cross-sectional area in opposite directions wherein the valve keeper is adapted to pivot on a received valve stem, andsaid keeper having opposite ends extending from said passageway and having opposite sides wherein one said side is adapted to contact a valve shoulder and said opposing side is adapted to contact a valve element.