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:
Jun. 22, 1976
Filed:
Mar. 13, 1974
Applicant:
Inventors:
Hugh J Tyler, Santa Ana, CA (US);
Dennis E Newell, El Segundo, CA (US);
Assignee:
Robertshaw Controls Company, Richmond, VA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02H / ;
U.S. Cl.
CPC ...
317 42 ; 317 / ; 219499 ; 219510 ;
Abstract
A contactor or switch to an electrically powered unit, such as a motor, is controlled by a condition responsive circuit which may include facilities for changing the response condition of the circuit and/or facilities responsive to several conditions, such as temperature and excessive current.