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:
Jul. 11, 1978
Filed:
Nov. 19, 1976
Hiroo Arikawa, Tokyo, JP;
Masaya Maruo, Yokohama, JP;
San-O Industrial Co., Ltd., Tokyo, JP;
Abstract
A time-lag fuse is provided which exhibits improved breaking capacity due to its novel construction. It comprises a fuse element which is securely positioned within an insulating cylindrical tube such as a glass cartridge, and a plurality of sintered ceramic bodies (e.g., cylindrical or polygonal) are circumferentially disposed within said tube so as to define a space therewith to achieve the required fusing and time-lag characteristics. The sintered ceramic bodies are arranged so as to define plurality of spaces between adjacent pairs of the ceramic bodies and the insulating tube in order to buffer the pressure created by arcing between the ceramic bodies and the insulating tube during a current overload.