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:
Sep. 06, 1977
Filed:
Apr. 15, 1971
Robert C Matter, Anderson, IN (US);
General Motors Corporation, Detroit, MI (US);
Abstract
A method of forming a through-the-partition intercell connection between adjacent cell groups in a battery. Plate strap lugs are positioned on either side of an aperture in a partition between adjacent cells. The lugs are pressed tightly against the partition walls by opposing hold-down sleeves. Opposing extruder-electrodes move axially through the hold-down sleeves and extrude portions of each lug into the aperture. The aperture acts as an extrusion die. When extrusions contact one another inside the aperture, current is caused to flow through the extruder-electrode. The tips of the extrusions fuse and the balance softens. Extrusion of the soft material continues until the aperture is filled.