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:
Aug. 21, 1990
Filed:
Jun. 15, 1988
Keith V Leigh-Monstevens, Troy, MI (US);
David L Wrobleski, Fraser, MI (US);
Automotive Products plc, Warwickshire, GB;
Abstract
A concentric hydraulic actuator for use with a manual transmission motor vehicle of the type in which the actuator housing moves in response to depression of the clutch pedal and the associated piston remains axially affixed. The housing of the actuator includes an outer main body portion defining an annular piston bore opening rearwardly and further defines an inner bearing carrier section including a hub portion slidably guiding on the associated quill shaft surrounding the transmission input shaft and interconnected to the main body outer portion of the housing by a radially extending web portion joined at its outer periphery to the inner periphery of the inner annular wall portion defining the piston bore at a location thereon spaced axially rearwardly from the forward end of the inner wall portion and joined at its inner periphery to the outer periphery of the hub portion at a location thereon spaced axially rearwardly from the forward end of the hub portion so as to define a forwardly opening bearing cavity in which the release bearing is received for coaction with the release element of the associated clutch. The hub portion of the bearing carrier, the release bearing, and the annular piston bore are arranged in concentric axially overlapping relationship to minimize the axial dimension of the actuator.