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:
Aug. 12, 1997
Filed:
Feb. 14, 1996
Applicant:
Inventor:
Wilfried Baatz, Seattle, WA (US);
Assignee:
Racer-Mate, Inc., Seattle, WA (US);
Primary Examiner:
Int. Cl.
CPC ...
A63B / ; A63B / ;
U.S. Cl.
CPC ...
482 61 ; 482 63 ; 482903 ;
Abstract
An eddy current brake for use with exercise training devices, such as bicycle, ski and rowing exercise devices. The eddy current brake includes a nonmagnetic, electrically conductive disk that is rotatably mounted between one or more electromagnets. The electromagnets introduce eddy currents within the rotating disk. The disk is formed of a copper alloy having between approximately 5.0% to 15.0% zinc by weight. In one embodiment of the invention, the disk is formed of copper alloy 220, comprising 90.0% copper and 10.0% zinc.