|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||137/527 ; 137/4542|
|발명자 / 주소|
|인용정보||피인용 횟수 : 25 인용 특허 : 3|
A check valve apparatus provides an overall valve body which can be placed in any typical flow line, a removable seat being provided at the inner portion of the valve body, the seat having a center orifice through which fluids can flow. The seat can be attached using a plurality of temporary tensile connectors, and the seat having a recess which receives a valving member therein. The valving member pivots in the seat and is weighted to a degree which aids in closure under static flow conditions. A closure spring can be added to further insure closure of ...
A pipeline check valve, comprising: a. a valve body provided with a recess, said valve body having a flow opening therethrough communicating with said recess; b. a removable valve seat, said valve seat provided with a fluid opening therethrough, said valve seat corresponding to said recess and being attachable to said valve body within said recess with said flow opening of said body and said fluid opening of said seat aligning to allow fluid flow through said aligned openings; c. a valving member in operative connection with said valve seat, said valving...