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. 20, 1976
Filed:
Feb. 03, 1975
Applicant:
Inventor:
Lee A Davis, Audubon, NJ (US);
Assignee:
I-T-E Imperial Corporation, Spring House, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02H / ;
U.S. Cl.
CPC ...
317 / ; 317 / ;
Abstract
A static relay utilizing a resistance-capacitance network to provide a current-time characteristic which has an inverse relationship for appropriately controlling protective operations in power transmission and distribution networks. An integrated dual-threshold and clamp circuit is employed in the static relay to adjustably control the time delay characteristic of the network over a range of several orders of magnitude without altering the time delay wave shape or requiring matched components and incorporates linear time setting means to facilitate adjustment and usage of the static relay.