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:
Sep. 01, 1981
Filed:
Jul. 06, 1979
Alfred W Thomas, Koblenz, DE;
Lutz E op den Camp, Koblenz-Moselweiss, DE;
Lucas Industries Limited, Birmingham, GB;
Abstract
In a servo booster in which the rear part of the valve body is slidably guided in a guide in the rear end of the booster housing, the rear part and the guide have non-round cross-sections to prevent the valve body from turning relative to the housing. This is of particular benefit when a tie extends through the movable wall for transmitting braking reaction forces. Such a tie has to be sealed to the movable wall by a suitable seal, and any turning of the movable wall might damage the seal. The interior of the valve body is of circular cross-section so that, due to the non-round external shape, a radially thickened portion of the valve body is formed to carry a fluid conduit.