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|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||220/202 ; 137/43 ; 220/303|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 8 인용 특허 : 0|
In a vented cap for closing the filler neck of a liquid containing tank, the cap including a valve housing providing a venting passageway extending therethrough, the improvement comprising a roll-over valve member for closing the passageway when the filler neck is tilted. The valve housing provides a valve seat in the passageway facing inwardly and against which the valve member moves. The housing also provides a tubular portion extending inwardly from the valve seat, the valve member being moveable in that portion between a position in closing engagemen...
In a venting system for a liquid-containing tank having pressure-venting means for venting said tank to atmosphere whenever the pressure differential therebetween exceeds set limits, the improvement comprising roll-over valve means between said tank and said pressure-venting means, said roll-over valve means including means providing at least one venting passageway of sufficient size to allow free passage of vapor therethrough and small enough to impede the flow of liquid from said tank therethrough, and an inhibiting valve disposed to be contacted by li...