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|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||137/039; 137/015.03; 137/487.5; 251/068; 251/129.19|
|발명자 / 주소||
|출원인 / 주소||
|대리인 / 주소||
|인용정보||피인용 횟수 : 8 인용 특허 : 60|
A gas meter installation including gas supply plumbing and point of use plumbing will have a gas meter therebetween. A valve can be installed with the gas meter for shutting off the flow of gas to the point of use. This valve is preferably a gate valve mounted with the a gas meter, and can be retrofitted into existing installations, or installed with the new plumbing installation. The valve can be shut off by remote activation for example due to a seismic sensor causing a controller to send a signal to activate the valve. The control can also interact wi...
I claim: 1. A valve comprising: a housing having a gas inlet, a gas outlet and a gas passage there between; a gate mounted in said housing so as to be movable in a direction across the gas passage between open and closed positions, said gate including a first portion having an opening therein that is positioned across said gas passage in said open position and a second portion that is positioned across said gas passage in said closed position; a spring positioned so as to bias said gate toward said closed position; and a release pin movable between one ...