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:
Jan. 14, 1986
Filed:
Jul. 23, 1984
Dean C Warner, Portville, NY (US);
James R Marek, Olean, NY (US);
Cooper Industries, Inc., Houston, TX (US);
Abstract
An expulsion type fuse cutout fuseholder structural assembly (10) including a fuse tube assembly (12) having a bone fiber liner (40) and a sleeve insert (36) coaxially disposed entirely interiorly within an insulative outer covering or wrapping (14). A rabbet joint is defined between the mated ends of the liner (40) and sleeve insert (36) by means of a counterbored portion (48) of the liner (40) and an axially projecting tubular portion (44) of the sleeve insert (36). In addition, each of the bone fiber liner (40) and sleeve insert (36) components is provided with a spiral groove (42,38) within which the inner layers of the outer covering or wrapping (14) are disposed during the wrapping fabrication of the fuse tube assembly (12). In this manner, all three structural components of the fuse tube assembly (12), that is, the sleeve (36), the liner (40), and the outer covering or wrapping (14), are all integrally interconnected together, whereby any one of the components is fixedly interconnected with the other two components. Such an improved structural assembly (12) enhances the interruption rating of the fuse cutout fuseholder structural assembly (10), in view of the fact that the structural integrity of the fuse tube assembly (12) is able to be maintained under the high-temperature, pressurized gaseous conditions attendant current fault conditions.