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:
Apr. 19, 2016
Filed:
Nov. 09, 2011
Russell John Trinick, Flintshire, GB;
Christopher James Clarke, Cheshire, GB;
Russell John Trinick, Flintshire, GB;
Christopher James Clarke, Cheshire, GB;
Henrob Limited, Flintshire, GB;
Abstract
A self-piercing rivet () for forming joints in stacked sheets of high or low strength, light alloy metals such as aluminum and magnesium. The rivet () comprises a head () and a substantially cylindrical shank () that is at least partially hollow so as to define a bore () that extends along at least part of its length. The outside diameter (D) of the shank () is at least 6 mm, the effective length of the rivet is at least 1.3 times the diameter of the shank and the bore () has a volume that is at least 38% of the effective solid volume of the rivet (). The rivet geometry is such that it has enhanced column strength to withstand the high insertion forces required and a high bore volume to accommodate displaced sheet material.