Exercise apparatus

Details Exercise apparatus Exercise apparatus

1989-05-17

1991-01-29

Crow, Stephen R.

Undertaking

272117, 272125, 272130, 272DIG4, A63B 2106

Patent

active

049880950

ABSTRACT:
A weight stack training machine has a stack of weights 3 slidable vertically along a pair of guides 2 when lifted by a cable 7 which is connected to a hand grip or the like. In the upper part of the machine is an assembly for increasing the load felt by the user, consisting of a gas spring 18 connected between the machine frame 1 and an arcuate portion of a lever 11. At the opposite end of the lever is a pulley 12 around which passes a cable 13 anchored to the frame at 14 and connected at 15 to the weight selector rod 4. Listing the weights 3 causes the lever 11 to compress the spring 18 and give the user extra resistance.

REFERENCES:
patent: 3638941 (1972-02-01), Kulkens
patent: 4357010 (1982-11-01), Telle
patent: 4358107 (1982-11-01), Nissen
patent: 4426077 (1984-01-01), Becker
patent: 4546971 (1985-10-01), Raasoch
patent: 4753437 (1988-06-01), Lapcevic
patent: 4765611 (1988-08-01), MacMillan

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