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:
Sep. 27, 1977
Filed:
May. 24, 1976
Applicant:
Inventor:
David John Knight, Bath, EN;
Assignee:
Bendix Westinghouse Limited, Bristol, EN;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60T / ;
U.S. Cl.
CPC ...
303 / ; 303 40 ; 303118 ;
Abstract
A load dependent control arrangement wherein an electrical load sensor such as a strain gauge controls the mark-to-space ratio of a pulse train output from a pulse generator. The pulse train operates a solenoid valve to control a pneumatic output pressure in proportion to the ratio of marks to spaces. The output pressure may be amplified in a self-lapping pneumatic relay valve. The final output pressure may be utilized in any suitable manner, for example, in operating the pneumatic brakes of a vehicle whose load is being measured by the sensor.