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:
Jul. 07, 1987
Filed:
Mar. 10, 1986
Hideo Tamamori, Kobe, JP;
Mitsuhiro Ikeda, Amagasaki, JP;
Nippon Air Brake Co., Ltd., Kobe, JP;
Abstract
An equalizer discharge valve for use on a railroad air brake system includes a valve housing having an equalizer chamber formed therein above a brake pipe chamber and separated by a piston, diaphragm configuration. The diaphragm is sealed on the outer circumference by the connection to the housing and on the inner circumference by the connection to the piston. A connecting passage formed in the piston has a check valve disposed therein such that fluid pressure can only flow from the equalizer chamber to the brake pipe chamber. An exhaust valve, disposed between the brake pipe chamber and an exhaust chamber, vents the brake pipe chamber when opened as corresponds to selected venting of the equalizer chamber fluid pressure. A back pressure chamber and piston configuration is formed above the equalizer chamber such that fluid pressure from the exhaust chamber can be communicated thereto to counterbalance the force on the piston exerted from the brake pipe side during an exhaust operation.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile