Exercise devices – Involving user translation or physical simulation thereof – Bicycling
Reexamination Certificate
1999-09-14
2003-04-22
Lucchesi, Nicholas D. (Department: 3764)
Exercise devices
Involving user translation or physical simulation thereof
Bicycling
C482S903000, C482S058000
Reexamination Certificate
active
06551220
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates generally to a resistance device for use with exercise equipment and, more particularly, to a resistance device for bicycle trainers.
Bicycle trainers have been used by bicycle enthusiasts to convert their bicycles for stationary riding. A typical user is a bicycle owner who competes in various bicycles races or rides often. When the weather prevents riding outdoors, such as when it is raining, too cold, or too hot, the cyclist can use the trainer indoors to simulate a ride. In some cases, cyclists may want to use a trainer while also reading or watching television. However, in all cases, the bicycle trainer should be easy to use and simulate bicycle riding on the open road.
A common bicycle trainer has a frame onto which the user mounts the bicycle. Typically, the rear wheel of the bicycle is in contact with a roller that, in turn, is coupled to a resistance unit. The resistance unit provides increasing resistance to match the energy output of the rider. Some resistance devices use fluid as a resistance medium. However, a significant problem of current fluid resistance units is that they can leak, which can damage or stain the surface upon which it rests.
SUMMARY OF THE INVENTION
An exercise resistance device for use in an exercise apparatus includes a rotatable shaft and an impeller rotatable within a fluid filled sealed chamber. A rotating member is joined, for rotation with the rotatable shaft. The rotating member is external to the sealed chamber and is magnetically coupled to the impeller.
REFERENCES:
patent: 2235184 (1941-03-01), Wettlaufer
patent: 3140711 (1964-07-01), McGathey
patent: 3961213 (1976-06-01), Koike et al.
patent: 4003375 (1977-01-01), Simjian
patent: 4958831 (1990-09-01), Klm
patent: 5248245 (1993-09-01), Behnke et al.
patent: 5716331 (1998-02-01), Chang
patent: 5722916 (1998-03-01), Goldberg
patent: 5762584 (1998-06-01), Daniels
patent: 5944637 (1999-08-01), Stickler et al.
patent: WO 98/13108 (1998-02-01), None
patent: WO 99/10049 (1999-04-01), None
Koehler Steven
Kurt Manufacturing Company, Inc.
Nguyen Tam
Westman Champlin & Kelly P.A.
LandOfFree
Exercise resistance device with magnets does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Exercise resistance device with magnets, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Exercise resistance device with magnets will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3108896