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:
Feb. 28, 1989
Filed:
Dec. 24, 1987
Joseph M Stunzi, Athens, GA (US);
Westinghouse Electric Corp., Pittsburgh, PA (US);
Abstract
A draw-out fuseholder 10 is made containing a first, electrically conductive metal fuse contact 11 having an outer chamfer 12 and a circumferential top surface 13, a second, extended, electrically conductive metal fuse contact 14 having an inner chamfer 15, an outer chamfer 16, and a circumferential top surface 17, and insulating tube 18 comprising fiber reinforced, thermoset resin between the fuse contacts, where the top of the insulating tube has a sharp edge 19 and discontinuity 20 near the second fuse contact inner chamfer 15, and where the ratio of first fuse contact exposed length 25: second fuse contact exposed length 26 is from 1:1.3 to 1:2.5. This fuseholder 10 can be placed in the housing 32 of a draw-out device 30, where housing contact sets 39 and 40 mate with the fuse contacts 14 and 11 in an at-rest position.