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. 25, 1989
Filed:
Sep. 25, 1987
Applicant:
Inventors:
Assignee:
Northern Telecom Limited, Ottawa, CA;
Primary Examiner:
Int. Cl.
CPC ...
H02H / ;
U.S. Cl.
CPC ...
361118 ; 361117 ; 357 39 ;
Abstract
A solid-state surge protection device comprises two electrodes between which is sandwiched a semiconductor chip. A resilient, annular, sealing member comprised of a thermoplastic resin extends around the periphery of the device and is adhered to both electrodes. The resin is a flexible, dielectric material which is not disrupted by heat generated under surge conditons in the device, and which is environmentally inert. The electrodes can be soldered to opposite surfaces of the chip.