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:
Feb. 19, 1991
Filed:
Feb. 13, 1989
Applicant:
Inventor:
Thomas A Oldfield, Columbus, IN (US);
Assignee:
Anchor Tech, Inc., St. Augustine, FL (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16H / ; F16H / ; F16D / ; B60K / ;
U.S. Cl.
CPC ...
475 72 ; 475 76 ; 475 80 ; 188291 ; 192 / ;
Abstract
A device for providing a variable retarding torque upon a rotating shaft includes an aerodynamic rotor and control means which is responsive to independent and external signals to continuously vary the ratio of the speed of the aerodynamic rotor as compared to the speed of the rotating shaft. The control means includes a multiple disc, dynamic, torque limiting friction clutch which is operable to vary the torque transferred between the rotating shaft and the rotor. Modulation of the dynamic clutch may be done at any time during active operation of the device.