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|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||4/321 ; 220/373|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 1 인용 특허 : 5|
A portable toilet having a fill cap covering the fill opening for a flush water tank. The cap includes a lid with an air vent opening and a seal member captivated in a cage extending downwardly from the lid into the tank, the cap being removably mounted on a tube for filling the tank with water. An air path from the atmosphere to tank is defined by the lid vent opening and an annulus around the seal. The cage is inserted into the tube and should the water splash in the tube the seal is forced upwardly and against the vent opening to prevent water from es...
A closure removably mountable to a fill tube for a storage tank for toilet flush water, said closure and said fill tube including coacting means operable to prevent unwanted removal of the closure, said closure including a top lid having an aperture to allow air to flow into the tank via the tube, and seal means disposed below said aperture and operable to close the aperture, said seal means including a sealing member for closing said aperture and means movable mounting said sealing member on said lid in communication with the interior of said storage ta...