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:
Jan. 10, 1978
Filed:
Oct. 13, 1976
Applicant:
Inventors:
Frank W Murphy, Jr, Bixby, OK (US);
Buddy G Sparks, Tulsa, OK (US);
Assignee:
Frank W. Murphy Manufacturer, Inc., Tulsa, OK (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02H / ;
U.S. Cl.
CPC ...
361 23 ; 307 / ; 361189 ;
Abstract
An electromagnetic normally energized fault sensing and shut down switch is employed in a unique mode of operation with essential operating components of power equipment, such as engines, and in conjunction with normally open and normally closed safety switches. Costly power equipment is protected following failure or malfunction of any one operational accessory component and a fail-safe equipment monitoring and shut down system is provided.