1977-09-28
1979-10-02
Pinkham, Richard C.
Undertaking
272DIG4, 272134, A63B 2100
Patent
active
041695895
ABSTRACT:
Apparatus having a support on which a person can lie out flat, and laterally spaced elongated side members extending outwardly from an end of the support so as to extend along the outsides of the persons's legs from inner pivot points aligned with his hips. Each side member is formed of extensible inner and outer sections pivotally interconnected and having a foot pedal near the outer end of the side member. A resistor is connected to the side members adjacent the pivotal mountings thereof to resist movement of the foot pedals between an inner position when the person's legs are drawn towards the body and an outer position when the legs are extended. The resistor of each side member includes a cam mounted to rotate around the inner pivot point of said member, a surface on the cam positioned to move around this pivot point, a flexible connector adjustably connected to the cam surface, and a guide adjacent the cam surface over which the connector extends to a movement resistor preferably in the form of one or more weights.
REFERENCES:
patent: 3112108 (1963-11-01), Hanke
patent: 3734495 (1973-05-01), Nist et al.
patent: 3820782 (1974-06-01), Salkeld
patent: 3917262 (1975-11-01), Salkeld
Athletic Journal - vol. 55, Dec. 1974, No. 4, p. 15.
Browne William R.
Pinkham Richard C.
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