|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||137/001; 137/614.2; 137/519.5; 137/533.11; 137/590; 251/144|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 3 인용 특허 : 12|
A combination flow control and reverse flow check valve provides a compact valve unit for controlling the flow of fluid in a downstream direction and limiting undesired backflow of liquid into a source such as a reservoir. The flow control and reverse flow check valve may be provided as a unitary member having a housing with an upstream end configured for mounting to the liquid source, a fluid conveying channel within the housing, and a check element positioned in the channel between the flow control valve, such as a ball valve, and a seat which is compl...
1. A combination flow control valve and reverse flow check valve comprising: a housing defining a central, fluid conveying channel therethrough, said housing including a substantially circular seat having a first diameter located proximate a desired upstream end of the housing, a tubular extension and an addition including a tubular neck received within said tubular extension, said tubular neck including a pair of diametrically opposed and aligned holes, and further including a blocking element received in said holes of said tubular neck, said blocking e...