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:
Jun. 04, 1991
Filed:
Jul. 24, 1989
David C Barker, Utica, MI (US);
Richard A Nix, Auburn Hills, MI (US);
Keith V Leigh-Monstevens, Troy, MI (US);
Automotive Products plc, Warwickshire, GB;
Abstract
A reservoir construction for use with a hydraulic clutch actuator for a motor vehicle. The reservoir includes a blow molded bellows portion including a plurality of pleats or convolutions and is arranged to be moved to a stressed expanded condition in response to filling of the system so that the reservoir serves not only as a source of hydraulic fluid for the system but also serves to pressurize the system by virtue of its stressed condition. The reservoir may comprise a two-part assembly including a main body member and a lid closing the upper end of the main body member, in which case the system is filled through the upper end of the main body member, the lid is secured to the upper end of the main body member, and the output member of the associated slave cylinder is retracted to pressurize the system. Alternatively, the reservoir may comprise a single unitary member with a sealed upper end and the system may be filled and pressurized through a quick connect coupler secured to the free end of a conduit connected to the discharge end of the master cylinder assembly.