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:
Jun. 24, 1980
Filed:
Dec. 01, 1977
Eric C Hales, Solihull, GB;
Automotive Products Limited, Leamington Spa, GB;
Abstract
A hydraulic pressure control valve for a vehicle hydraulic braking system and of the type that is normally interposed between the brake master cylinder and the rear brakes so as to ensure that after a predetermined pressure is reached in the system a further pressure increase in the master cylinder produces a lesser increase in the rear brakes than in the front brakes. The predetermined pressure at which the valve begins to operate is controlled according to the load on the vehicle suspension, by a lever and control springs which are operated by changes in height of the vehicle chassis relative to the unsprung portion of the vehicle. The pressure control valve is made compact by having a control spring co-extensive with a part of the lever.