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:
Nov. 23, 1976
Filed:
Jul. 21, 1975
Applicant:
Inventor:
John Richard Simmons, Wolverhamton, EN;
Assignee:
Lucas Industries Limited, Birmingham, EN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F15B / ; F01C / ; F01C / ;
U.S. Cl.
CPC ...
418206 ; 418270 ; 91380 ; 91382 ;
Abstract
A fluid-pressure operated actuator arrangement has a double-acting actuator device and a control valve. A three-element differential mechanism has two of its elements respectively drivingly connected to the control valve and the actuator device, and a third element resiliently coupled to an input lever. The input lever is frictionally restrained against movement. Relative movement between the lever and the third element, induced as a result of jamming the control valve, brakes the third element, increasing a torque which can be applied by the actuator device to the valve.