The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 12, 1993
Filed:
May. 06, 1992
Harold D Bartley, Springfield, OH (US);
William R Gaiser, Spring Valley, OH (US);
Broadway Companies, Inc., Dayton, OH (US);
Abstract
A container and pressure sealing closure combination in which the closure includes a rim portion engaging the mouth of the container, a substantially rigid central portion and an annular toggle portion pivotally connected to and interconnecting the rim portion and central portion, whereby upward movement of the central portion in response to internal pressure of the contents of the container pivots the toggle portion to urge the rim portion substantially radially outwardly against the mouth, thereby effecting a seal. In a preferred embodiment, the inner surface of the container mouth includes a plurality of axially-extending channels for conducting pressurized gaseous contents of the container between the closure and the container to the ambient. The outer surface of the mouth includes an annular recess which receives a plurality of radially inwardly projecting ribs on the rim portion, thereby effecting engagement between the closure and container. The closure includes a tab which is pivoted upwardly to remove the closure from the container, and the rim portion includes a plurality of sets of radially extending slots which fracture when the tab is pivoted upward, thereby preventing reattachment of the closure. Also in the preferred embodiment, the container includes an annular base shaped to receive the closure.