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:
Apr. 29, 1986
Filed:
Jul. 17, 1984
Shigeaki Doto, Kobe, JP;
Nippon Air Brake Co., Ltd., Kobe, JP;
Abstract
A load responsive valve for the braking of vehicles having load supporting air springs. The air spring pressure is employed to regulate the brake pressure through conventional proportioning-type valving. A pilot valve senses the application and release of the vehicle brakes in order to nullify operation of the air spring operated control piston so long as the brake is released, in order to reduce component wear and air consumption due to valve oscillation resulting from air spring pressure variation as the car jounces in service. This is accomplished by pilot pressure supplied via the pilot valve to counteract the air spring pressure acting on the control piston. During a brake application, the pilot valve exhausts this pilot pressure to permit the air spring pressure to operate the control valve in a normal manner.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile