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:
Oct. 20, 1992
Filed:
Mar. 23, 1992
Roy J Garrett, Redford Township, Wayne County, MI (US);
Ford Motor Company, Dearborn, MI (US);
Abstract
A hydrokinetic planetary transmission mechanism having compound planetary gear elements that define multiple underdrive ratios, a direct drive ratio and an overdrive ratio as torque is delivered from the turbine of the hydrokinetic unit to a driven member wherein a friction clutch is used to establish a direct drive ratio as well as an overdrive ratio, separate overrunning couplings being used in cooperation with a friction clutch to establish torque delivery from a driven shaft to one element of the compound planetary gearing and a separate overrunning coupling being used in cooperation with a common clutch to establish a torque flow path between the driven shaft and another element of the compound planetary gearing during overdrive operation whereby ratio changes between the direct drive and the overdrive ratio on both upshifts and downshifts are smooth and fully nonsynchronous.