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:
Jun. 15, 2010
Filed:
Dec. 20, 2007
Shuxin Wang, Tianjin, CN;
Pei-chung Wang, Troy, MI (US);
Lianhong Zhang, Tianjin, CN;
Yuhong Liu, Tianjin, CN;
Weijing Liu, Tianjin, CN;
John D. Fickes, Brighton, MI (US);
Shuxin Wang, Tianjin, CN;
Pei-Chung Wang, Troy, MI (US);
Lianhong Zhang, Tianjin, CN;
Yuhong Liu, Tianjin, CN;
Weijing Liu, Tianjin, CN;
John D. Fickes, Brighton, MI (US);
GM Global Technology Operations, Inc, Detroit, MI (US);
Tianjin University, Tainjin, CN;
Abstract
A staple for attaching together first and second metal sheets is made of a length of round wire bent at the ends to form spaced apart depending metal legs, each having a metal piercing point at the end thereof adapted to pierce completely through the first sheet and at least partially through the second sheet and also adapted to spread the legs further apart during the piercing to a spread position in which the legs are anchored within the metal sheets and thereby attach the metal sheets together. The metal piercing points each having an outside bevel surface on the outside of the leg, an inside bevel surface on the inside of the leg, and a blunt end surface between the inside and outside bevel surfaces.