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. 14, 2001
Filed:
Sep. 12, 2000
Brian Joseph Dutson, Manchester, GB;
Torotrak (Development) Limited, Lancashire, GB;
Abstract
A roller control unit (,) for a continuously-variable-ratio transmission includes a cylinder (,) having a cylinder wall and an end wall; and a piston (,), within the cylinder (,) and to which the roller assembly (,) is connected for movement therewith, said unit includes an axially extending shroud (,) of variable length extending between the piston (,) and the end wall, thereby to define in combination with the piston (,) and cylinder (,) a chamber (,) for receiving hydraulic fluid, and in which the shroud (,) comprises a telescopic shroud which in a first position of the piston (,) is extended and in a second position of the piston (,) is retracted.