|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||220/714; 222/717; 222/705; 215/011.4; 215/387; 215/389|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 39 인용 특허 : 14|
A drinking vessel includes a cover and a mouthpiece, the mouthpiece having at least a flexible portion which in its unflexed state engages a plug extending up through the mouthpiece. When the flexible portion is flexed, for example by suction or pressing or biting with lips or teeth the flexible portion flexes out of engagement with the plug, forming a liquid passage. As a result a self-sealing drinking vessel is provided which provides liquid on user demand.
1. A drinking vessel comprising a vessel body, and a cover having a mouthpiece, the mouthpiece comprising a flexible strip having side portions and an end portion wherein an outlet aperture of the strip is disposed in the end portion, the vessel further comprising a seal element against which the strip seals to close the outlet aperture in a relaxed condition, the strip being adapted to disengage the seal element to open the outlet aperture in a flexed condition, wherein the mouthpiece further comprises rigid support parts between which the flexible stri...