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:
Mar. 13, 1979
Filed:
Mar. 11, 1977
Ralph Coupland, Lincoln, GB;
Clayton Dewandre Company Limited, Lincoln, GB;
Abstract
A load-sensing valve for an air pressure braking system comprises a diaphragm responsive to a signal pressure, as from a brake valve, and actuating through a rockable beam a two stage valve for controlling flow of pressure air to the brakes, the beam fulcrum being displaceable in accordance with vehicle load, and a further diaphragm having operable connection with the two-stage valve and responsive to delivery pressure, the two-stage valve consisting of a pilot valve operable alone where air usage is small to provide high sensitivity and a main inlet valve which is brought into operation with increased inlet pressure and larger air flow.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile