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:
Dec. 21, 1982
Filed:
Jul. 27, 1978
Applicant:
Inventor:
David J Wickham, London, GB;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60T / ;
U.S. Cl.
CPC ...
303 / ; 188195 ;
Abstract
Empty/load control valve apparatus is proposed for use with direct release triple valves which operate by switching in an extra volume with the brake cylinder for empty loaded conditions. This improvement provides a valve operated in response to leakage away of brake cylinder pressure to enable dissipation also of the extra volume pressure to prevent brake cylinder isolation resulting from the extra volume pressure.