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:
Jan. 24, 2017
Filed:
Jul. 18, 2012
Joseph A. Walker, Kansas City, MO (US);
Tom Farrell, Lawrence, KS (US);
Joseph A. Walker, Kansas City, MO (US);
Tom Farrell, Lawrence, KS (US);
FIKE CORPORATION, Blue Springs, MO (US);
Abstract
A reverse-acting rupture disc () having a laser-defined reversal initiation feature () is provided in the bulged section () of the disc. The reversal initiation feature comprises at least a first lased area () that has a reduced thickness relative to rest of the bulged section. A second lased area () may also be provided within the margins of the first lased area. The second lased area has a depth that is greater than the depth of the first lased area. A line of weakness () may be formed in the bulged section that functions to direct reversal of the bulged section toward a particular area of the disc, such as line-of-opening recess ().