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:
Dec. 22, 1992
Filed:
Dec. 23, 1991
George E Lemieux, Northville, MI (US);
Ford Motor Company, Dearborn, MI (US);
Abstract
A continuously variable transmission is provided comprising a driving sheave mounted on a driving shaft, a driven sheave mounted on a driven shaft, and an endless V-belt for transmitting torque between the shafts. The driving sheave includes first and second sheave members, and the driven sheave includes third and fourth sheave members. A first plurality of angularly spaced apart helical ramps formed in the driving shaft contain rolling elements which cooperate with the first sheave member. Upon application of torque through the driving shaft, the first sheave member is axially biased toward the second sheave member like the translation of a nut on a threaded screw. A similar arrangement on the driven shaft axially biases the third sheave member toward the fourth sheave member upon application of torque through the driven sheave.