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. 14, 1978
Filed:
Sep. 14, 1976
James N Santilli, Bloomington, IN (US);
Westinghouse Electric Corporation, Pittsburgh, PA (US);
Abstract
A fusible device is provided, of the generally-enclosed type, having an improved granular filler material surrounding, or encompassing the one or more fuse links. Preferably, the granular filler material comprises sand and alumina trihydrate (Al.sub.2 O.sub.3.3H.sub.2 O). Another filler material, which gives roughly half the improvement of the aluminum trihydrate, is aluminum monohydrate (Al.sub.2 O.sub.3.H.sub.2 O) in varying proportions. Of less satisfactory performance, as admixed with the sand, was hydrous alumina silicate (Al.sub.2 O.sub.3.SiO.sub.2.XH.sub.2 O) (unfired lava), and of still less satisfactory performance, is a slight amount of free water physically admixed with sand, although its physical location within the sand is questionable, and such a fuse is of low interrupting reliability.