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. 08, 1977
Filed:
May. 29, 1975
Ralph Coupland, Lincoln, EN;
Clayton Dewandre Company Limited, Lincoln, EN;
Abstract
A dual brake valve for use in a twin-circuit fluid pressure-operated vehicle braking system comprises a housing, two sets of ports therein each including an inlet port and a delivery port, and two co-axial valve assemblies associated respectively with the two sets of ports, the valve assemblies each comprising a poppet-type valve element the head of which is subjected to delivery pressure, which pressure also acts on an oppositely-directed face of the valve element such that fluid pressure across the valve element is balanced. Preferably an axial exhaust passage is provided in part by a tubular member located co-axially between the valve assemblies by a diaphragm assembly which is also subjected to delivery pressure on both sides thereof.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile