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:
Aug. 13, 2002
Filed:
Nov. 06, 2000
Applicant:
Inventors:
Edwin G. Sawdon, St. Clair, MI (US);
Steven J. Sprotberry, Marysville, MI (US);
Assignee:
BTM Corporation, Marysville, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23P 1/100 ;
U.S. Cl.
CPC ...
B23P 1/100 ;
Abstract
A composite stripper for use in conjunction with an apparatus for joining multiple pieces of sheet metal or other sheet material is disclosed. The composite stripper is an elongated cylindrical member having a compliant midsection which is compressible to clamp sheet materials tightly together and a pair of relatively hard end portions and to provide an adequate interface between the punch assembly and the material to be joined.