Exercise devices – User manipulated force resisting apparatus – component... – Utilizing weight resistance
Patent
1998-08-17
1999-11-02
Mulcahy, John
Exercise devices
User manipulated force resisting apparatus, component...
Utilizing weight resistance
482100, 482101, 482135, 482137, 74 8915, A63B 2100, F16H 2702
Patent
active
059760621
ABSTRACT:
The invention is an exercise device which creates a controlled and infinitely variable resistance profile using a pair of rods that are wrapped about a common axis with a varying pitch. A slide unit is attached to the rods with rollers. When the slide unit is moved in a linear motion, the movement of the rollers on the rods causes the rods, and a shaft on which they are mounted to rotate. In one embodiment, the rotation of the shaft is used to move one or more units of a set of stacked weights. In a second embodiment, a rotation motion of the shaft on which the rods are mounted, causes a linear motion to the slide unit which is attached to a set of stacked weighs.
REFERENCES:
patent: 3599499 (1971-08-01), Steiner
patent: 5622078 (1997-04-01), Mattson
patent: 5669861 (1997-09-01), Toups
Mulcahy John
Vandigriff John E.
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