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. 25, 1994
Filed:
Nov. 24, 1993
Applicant:
Inventors:
Robert S Rudolph, Osceola, IN (US);
James J Colpaert, Granger, IN (US);
Assignee:
AlliedSignal Inc., Morristown, NJ (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01B / ; F15B / ;
U.S. Cl.
CPC ...
92 48 ; 92 96 ; 9137 / ; 605471 ;
Abstract
A tandem brake booster ( 12 ) having a flow path ( 145 ) between a control valve (118) and a solenoid valve (180) connected to a source of vacuum and the surrounding environment. The flow path (145) is created by first (140) and second (150) telescoping sleeves that are resiliently urged into sealing engagement with a front shell (58) and hub member (92) by a return spring (164).