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. 22, 1979
Filed:
Nov. 12, 1976
Applicant:
Inventors:
John J Wilkinson, Burton upon Trent, GB;
Harry Monks, Burton upon Trent, GB;
Assignee:
Coal Industry (Patents) Limited, London, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16D / ;
U.S. Cl.
CPC ...
192 / ; 192-0072 ; 192-2 ; 318471 ; 192 / ;
Abstract
The circuit, which controls actuation of a clutch intermediate an electrical motor and a conveyor, is powered from a transformer which taps the power supply to the motor. The circuit contains a relay switch which is operable by a current sensor attached to the power supply line.