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:
Jun. 14, 1988
Filed:
Nov. 16, 1987
Applicant:
Inventor:
Chi H Dang, Boulder, CO (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A63B / ;
U.S. Cl.
CPC ...
318370 ; 272129 ;
Abstract
An electrical circuit governs the speed and resisting torque of a permanent magnet electric generator which is employed as a means for generating resistance for an isokinetic physical exercise machine to improve the effectiveness of the training. By providing a steep increase of resisting torque to the speed when the torque is below a predetermined value and when the speed exceeds a preset level, it insures a minimum resistance throughout the range of motion and contains the speed within a desired range.