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:
Oct. 05, 1976
Filed:
May. 01, 1975
Applicant:
Inventor:
Richard T Hendrickson, South Bend, IN (US);
Assignee:
The Bendix Corporation, South Bend, IN (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F15B / ;
U.S. Cl.
CPC ...
91 32 ; 60546 ; 91412 ; 303-7 ; 303 40 ; 1376275 ;
Abstract
A relay valve for transmitting an operational signal to a first brake applying servomotor in a trailer upon actuation of a second brake applying servomotor in a tow vehicle. The relay valve has a housing with a movable wall which sequentially interrupts the communication of vacuum to a power chamber in the first brake applying servomotor and thereafter allows air to be communicated to the power chamber. With air in the power chamber, an operational pressure differential will be developed which will operate the first brake applying servomotor.