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:
Oct. 18, 1977
Filed:
Mar. 25, 1974
Applicant:
Inventor:
Jack D Harrel, Waynesboro, PA (US);
Assignee:
Landis Tool Company, Waynesboro, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05F / ;
U.S. Cl.
CPC ...
323-8 ; 323-9 ; 323 23 ; 361 18 ;
Abstract
A stable and reliable d.c. power supply is characterized by a regulator between input and output terminals in combination with parallel current paths to a load which are sequentially established to carry the major portion of current to the load as current increases. The power supply includes an excessive current detector and a load overvoltage and undervoltage detector, respectively, to short out the load and open the power supply circuit.