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. 01, 2006
Filed:
Aug. 15, 2003
Manfred Muller, Huttenberg, DE;
Eckhard Blank, Wolfsburg, DE;
Roland Kurz, Linden, DE;
Newfrey LLC, Newark, DE (US);
Abstract
The present invention relates to a weld-on fastener for an electrical contact with a weld nut () which, on its topside has an electric contact face () and, on its bottom side, has an annular axial projection () which surrounds a cavity () of a pre-determinable depth (T), and with a screw () screwed into the weld nut (), which screw () also has an electric contact face (), a spacer ring () being clamped between the contact faces (). The spacer ring () preferably has a thickness (D) which is approximately equal to the depth (T) of the cavity (). When the spacer ring () is clamped in, the screw () ends approximately flush with the end of the internal thread () of the weld nut (). This combination is distinctive in that it has only a low overall height, no metal scabs reach the thread () during welding-on, the contact faces () are protected during assembly and the welded connection can absorb high torques even when welding onto thin work pieces ().