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:
May. 31, 1977
Filed:
Feb. 11, 1975
Applicant:
Inventor:
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 ...
318484 ; 361 29 ;
Abstract
A control circuit, such as a motor control circuit, includes a capacitance connected at one side with a timing resistance to the gate of a field effect transistor (FET) which inhibits energization of a load, such as a motor. The FED controls a semiconductor switch which is connected by a diode to the other side of the capacitance to prevent reactuation of the circuit during a time delay determined by the rate of current flow through a timing resistance to the one side of the capacitance.