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:
Mar. 30, 1982
Filed:
Feb. 11, 1980
Applicant:
Inventors:
Mahmoud A El Hamamsy, Watchung, NJ (US);
William C King, Chatham Township Morris County, NJ (US);
Stephen Knight, Berkeley Heights, NJ (US);
Assignee:
Bell Telephone Laboratories, Incorporated, Murray Hill, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02H / ;
U.S. Cl.
CPC ...
361 56 ; 361 91 ; 361111 ; 3072 / ; 3072 / ; 3072 / ;
Abstract
An all solid-state protector circuit utilizes the combination of four zener diodes (Z1, Z2, Z3, Z4), two resistors (R1, R2), two capacitors (C1, C2), and two gated diode type switches (GDSA, GDSB) and provides bilateral voltage surge protection.
El Hamamsy, Mahmoud. (1982). Bidirectional solid-state protector circuitry using gated diode switches (U.S. Patent No. 4322767). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4322767
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile