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US 5,186,697 AGranted
Bi-directional stair/treadmill/reciprocating-pedal exerciser
OwnerBrian G. Rennexinventor
Life of this patent
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Abstract
This invention is an improvement in stair exercising equipment which recognizes the importance of training muscle groups, tendons, and ligaments for walking downhill on steps or on an incline. Accordingly, it provides powered means for a moveable staircase, for an incline, or for reciprocating pedals to rise, thereby allowing a person to walk downhill.
Claims6
An improved portable stepping exerciser comprising:
- a downward step assembly comprising a pair of movable steps and first means for repeatedly moving each of said steps from a first lower position to a first upper position, whereby the center of mass of a user who has stepped onto one of said steps is shifted upwardly when said step is moving upwardly;
- an upward step assembly comprising said pair of movable steps and second means for repeatedly allowing each of said steps to move from a second upper position to a second lower position, whereby the center of mass of said user who has stepped onto one of said steps is shifted downwardly when said step is moving downwardly;
- and
- switching means coupled to said downward step assembly and said upward step assembly for selecting one of said assemblies for operation.
1 more element
Dependencies are inferred from the claim text.