다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.NTIS 바로가기
다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.DataON 바로가기
다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.Edison 바로가기
다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.Kafe 바로가기
|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||431/20 ; 431/89 ; 126/361 ; 122/13R|
|발명자 / 주소||
|출원인 / 주소||
|인용정보||피인용 횟수 : 11 인용 특허 : 3|
The present invention includes an exhaust fan for exhausting combustion gases from a gas fired water heater, a gas pressure diaphragm switch for operating the exhaust fan in response to fuel flowing to the burner of the water heater, and a safety device for preventing fuel flow to the burner upon detecting undesirable changes in combustion gases. The apparatus further includes a time delay to continue operation of the exhaust fan and exhaust residual combustion gases for a short time after fuel flow to the burner has ceased. In one form the time delay is...
An apparatus for exhausting combustion gases from a gas fuel water heater having a gas burner to which fuel is supplied by a fuel line and a flue which allows ventilation of the combustion bases from the interior of a building in which the heater is installed to the exterior, comprising an exhaust fan adapted for connection to the gas water heater for drawing and exhausting combustion gases to the exterior of the building, switch means connected with said exhaust fan for operating said exhaust fan, and control means connected with said switch means for o...