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. 10, 1995
Filed:
Jun. 11, 1993
Applicant:
Inventor:
Barry L Frost, Waterford, MI (US);
Assignee:
New Venture Gear, Inc., Troy, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16H / ; F16H / ;
U.S. Cl.
CPC ...
475 93 ; 475159 ;
Abstract
A geared torque transfer device is provided having a planetary type gear arrangement disposed within a housing that is substantially filled with a viscous fluid. Rotation of the planetary gear members within the housing in response to differential input and output rotational velocity causes the viscous fluid to be pumped through passages formed within the housing. Hydraulic resistance to this pumping action resists the free rotation of the unit for causing torque to be transferred from the input to the output.