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:
Jul. 27, 1976
Filed:
Jan. 23, 1975
Charles R Olsen, Eagleville, PA (US);
Other;
Abstract
A percussion-ignitable pressure actuated tube primer has a closed end, thin walled, metal tube which is indented over a portion of its length and is telescoped within a second metal tube. The indentation of the first metal tube defines a space between the first tube and the second metal tubular case. A percussively-ignitable primer mixture is contained in that space and ignites and deflagrates when the indented portion of the first tube is expanded and inverted by internal fluid pressure or a mechanical firing pin entering the first tube, and crushing the primer mixture between the expanding first tube and the bore of the second tubular case. The primer is made by coating the indented portion of the first tube with primer mixture in paste form and subsequently drying the primer mixture.