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. 01, 1983
Filed:
Dec. 11, 1980
Applicant:
Inventor:
Hideo Tamamori, Kobe, JP;
Assignee:
Nippon Air Brake Co., Ltd., Kobe, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60T / ;
U.S. Cl.
CPC ...
303 40 ; 137112 ; 303 13 ; 303 66 ;
Abstract
A change-over valve device having a pair of oppositely disposed control pressure chambers subject to respective control pressures from two independent pressure input systems and operable for diverting the lower control pressure to a delivery chamber so as to increase the degree of the pressure normally delivered from the delivery chamber by an amount corresponding to the degree of such lower control pressure.
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Tamamori, Hideo. (1983). Change-over valve device utilizing the lower pressure of a double input (U.S. Patent No. 4375303). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4375303
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile