|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||220/254 ; 220/904 ; 220/268 ; 220/281|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 22 인용 특허 : 3|
A lid adapted to fit over the opening of a container with an opening therein which permits the contents of the container to be poured therethrough. A tab fitted into the opening in the lid and attached toward the center of the lid. A force applying area positioned in the central portion of the lid and attached to the tab so that the tab moves in an inward direction when a force is applied to the top of the lid. When the force is released from the top of the lid, the tab then assumes its original position within the opening, thus preventing the spilling o...
A closure with a rim adapted to engage the top of a container comprising: a generally planar central area attached to said rim, a centrally positioned load applying area connected to said planar central area and positioned at an elevation different than said central area, a plurality of ribs connecting said load applying area to said rim, a valve positioned between said ribs and attached in cantilevered fashion to said load applying area whereby said valve can be opened when pressure is applied to said load applying area.