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:
May. 19, 1992
Filed:
Aug. 06, 1990
William M Fries, San Diego, CA (US);
Thomas L Ratledge, Carlsbad, CA (US);
William H Hill, Pala, CA (US);
Hughes Aircraft Company, Los Angeles, CA (US);
Abstract
Two parallel elongated closely spaced electrodes for welding electronic circuit components are mounted for limited rotation about an axis extending generally longitudinally of the electrodes to allow the electrode pair to be oriented with respect to a workpiece without angularly moving the workpiece. The electrodes are mounted in a pair of mutually aligned and mutually insulated bobbins against which are firmly pressed a pair of contacts for conducting weld current between the electrodes. The bobbins and the electrodes mounted therein are free to rotate relative to the fixed contacts, but the latter are firmly pressed against the bobbins to provide increased contact pressure and decreased electrical resistance between the contacts and bobbins and to provide a relatively large surface area for such contact.