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:
Nov. 23, 1993
Filed:
Jun. 29, 1992
Applicant:
Inventors:
Johannes C Bakermans, Harrisburg, PA (US);
Lawrence R Holbrook, Jonestown, PA (US);
Assignee:
The Whitaker Corporation, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21D / ; B21D / ;
U.S. Cl.
CPC ...
72334 ; 72335 ; 72339 ; 29874 ;
Abstract
Flat stamped electrical contact device (2) has a contact edge (8,8') which extends from the first major surface (4) to the second major surface (6) of the device. The contact edge surface (8,8') is smooth for substantially its full width and does not have a fractured portion or a burr extending from the second major surface (6). The smooth straight surface is produced by steps of coining the opening produced during the initial punching operation at a location adjacent to the second major surface after the opening has been punched and then shaving the edge to produce the finished contact surface.