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:
Jun. 16, 1992
Filed:
Sep. 07, 1990
Wun C Chong, Delta, B.C., CA;
Other;
Abstract
A pressure relief system for a pressurized container having an aperture comprising a closure member adapted for insertion into the aperture. The closure member has a bottom wall and peripheral side walls and a seal adapted to engage and seal the edges of the aperture. The peripheral side walls are formed with a first set of radially outwardly extending projections adapted to engage with the edges of the aperture to hold the seal of the closure member into sealable engagement over the aperture. A second set of radially outwardly extending projections are also provided below the first set adapted to engage with the aperture edge to hold the closure member within the aperture when the first set of projections are forced out of engagement with the aperture edge due to a build up of excess pressure in the pressurized container whereby the seals are released from the aperture edge to vent pressure. A tool is also disclosed capable of forming the necessary first and second sets of projections in a single step.