Surface-metalized, bonded fuse with mechanically-stabilized end caps
AssigneeHughes Aircraft Company
InventorJoseph Sugar
Life of this patent
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Abstract
The body of the disclosed fuse includes connective portions having surface-metalization to which corresponding connective portions of the fusible element are respectively bonded. A metalization-conducive ceramic may be more-specifically utilized for the fuse body, while those portions of the body which interface with the fusible element may additionally be contoured so as to lessen the severity of element-severance forces otherwise experienced. When the fuse's connective portions yet-more-specifically comprise the opposite ends of a fuse body which is elongated, end caps may be electrically joined to the surface-metalized fuse ends. An enhanced degree of mechanical stability may also be achieved by further providing stabilizing geometrical expedients for the fuse/cap interface.
Claims42
An electrical fuse comprising:
- (A) an elongated body defining an elongated conduit therethrough and having first and second external connective portions;
- (B) surface metalization applied to said connective portions;
- and
- (C) a fusible element having third and fourth connective portions, said third and fourth portions being respectively welded to the surface metalization of said first and second portions and including a central section disposed in said conduit and,
- (D) first and second end cap assemblies, respectively mounted on said fusible element and said first and second connective portions.
An electrical fuse comprising:
- (A) an elongated body, said body comprising a ceramic material of at least approximately 92% alumina, said body having opposite first and second ends, each of said ends having contoured interface edges;
- (B) surface metalization applied to selected portions of said first and second ends;
- (C) an elongated fusible element having first and second end-sections, each such section being bonded to the surface metalization of a given selected portion on said respective first and second ends of said fuse body, while also being juxtaposed the contoured edges of the given fuse-body end;
- and
- (D) first and second end-cap assemblies respectively mounted on said first and second fuse-body ends and connectively encasing said respective first and second fusible-element ends;
- with
- (E) each of said assemblies including end caps having integrally-formed impressions for stabilizing the mechanical positioning of the cap assembly on the associated end, with said impressions being configured so as to be mutually symmetrically disposed around the periphery of the associated fuse-body end when the given cap is thereon mounted.
Dependencies are inferred from the claim text.