Undertaking
Patent
1991-01-07
1991-10-29
Crow, Stephen R.
Undertaking
272130, A63B 2120, A63B 2304
Patent
active
050609351
ABSTRACT:
Stair climbing exercising apparatus for use under water comprising a pair of laterally adjacent stepping levers pivotally mounted between the two ends of the levers, the exerciser stepping on one end, and water resistance imposing member mounted the levers. The amount of water resistance being imposed is adjustable. In another embodiment, a paddle wheel is employed with blades along the outer periphery being adjustable to vary the amount of water resistance.
REFERENCES:
patent: 3424133 (1969-01-01), Brady
patent: 4162788 (1979-07-01), Turnier
patent: 4249725 (1981-02-01), Mattox
patent: 4708338 (1987-11-01), Potts
patent: 4759544 (1988-07-01), Diaz
patent: 4776581 (1988-10-01), Shepherdson
patent: 4838543 (1989-06-01), Armstrong et al.
Dunn Thomas J.
Gronachan Donald B.
Belkin Leonard
Crow Stephen R.
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