Exercise apparatus

Details Exercise apparatus Exercise apparatus

1989-06-07

1990-11-13

Apley, Richard J.

Undertaking

272116, 272134, 188312, 188318, A63B 2100

Patent

active

049696432

ABSTRACT:
The invention is directed to an improved exercise apparatus, of the type having a fixed base and an associated movable portion. A hydraulic system is attached to both by a cylinder, on movement of the movable portion with respect to the base, a hydraulic fluid current is generated through a flow control valve. By adjusting the flow control valve resistance to the current can be varied causing greater or lesser resistance to the exertions of the user of the apparatus. Preferably paired flow control valves are utilized providing adjustable accommodating resistance to movement in either direction. The adjustment controls are conveniently mounted on the movable portion for user/operator access.

REFERENCES:
patent: 1571788 (1926-02-01), Bramlette, Jr.
patent: 3465851 (1969-09-01), Callegari et al.
patent: 4063726 (1977-12-01), Wilson
patent: 4235437 (1980-11-01), Ruis et al.
patent: 4353547 (1982-10-01), Jenkinson
patent: 4609190 (1986-09-01), Brentham
patent: 4647041 (1987-03-01), Whiteley
patent: 4667955 (1987-05-01), Giesch
patent: 4872668 (1989-10-01), McGillis et al.

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