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. 29, 2002
Filed:
Dec. 17, 1997
Daniel Duane Fritzinger, Grabill, IN (US);
Rieke Corporation, Auburn, IN (US);
Abstract
A closure for threadable insertion within an opening of a drum and capable of venting the drum when exposed to elevated pressures and temperatures to prevent the build-up of explosive pressures within the drum. A center portion of the closure is molded with thinner dimensions allowing the center to distort as a result of heat and internal pressures. At elevated levels, the center portion ruptures venting internal container pressure. In order to ensure venting at proper levels while maintaining integrity for the transport of materials, the center portion includes a downwardly depending circular flange and a series of lugs on the upper surface.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile