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:
Nov. 16, 1999
Filed:
Mar. 10, 1998
Applicant:
Inventor:
Roger S Clarke, Lititz, PA (US);
Assignee:
Automatic Timing & Controls, Inc., Lancaster, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G08B / ;
U.S. Cl.
CPC ...
340638 ; 340639 ; 361104 ;
Abstract
There is disclosed a multi-phase fuse status indicator having a green 'good' and a red 'bad' indicator LED for each line fuse of the respective phases, the current to the LED's being pulsed to cause them to provide a blinking indication. Power used for the logic circuit for the LED's and the LED's themselves and the related heat dissipation is less than 10 watts and is supplied from the power lines connected through the fuses regardless of the fuses' condition. Only two simple conductor connections are required from the fuse status indicator to each fused line of the multi-phase power system.