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:
May. 27, 1986
Filed:
Nov. 09, 1984
Richard W Proulx, Forest Lake, MN (US);
Stephen J Kent, Anoka, MN (US);
Federal Cartridge Corporation, Minneapolis, MN (US);
Abstract
Apparatus and method for covering flash holes in a primer battery cup where the anvil is formed integrally with the battery cup. A tooling apparatus including a tubular foiling pin, and a cutting die plate which, in cooperation with the outside rim of the primer battery cup, blanks out an imperforate, covering-medium disk. As the tubular foiling pin continues to descend into the battery cup, the paper is pierced and slit by the anvil point of the battery cup. The blanked and now perforated disk is inserted further into the battery cup by the foiling pin and seated over the flash holes at the bottom of the cup around the anvil.