Spring biased thigh and pelvic muscle toning apparatus

Details Spring biased thigh and pelvic muscle toning apparatus Spring biased thigh and pelvic muscle toning apparatus

1974-12-30

1976-11-16

Pinkham, Richard C.

Undertaking

73380, 272134, 73141AB, A63B 2100

Patent

active

039920046

ABSTRACT:
An apparatus for enabling the user to divaricate simultaneously his legs while overcoming or attempting to overcome an antagonistic resilient force constantly urging his legs towards each other without exceeding a predetermined amplitude comprises in combination two vertical bearing members between which the user can dispose his ankles and exert an outward pressure by use of the outer malleoli, adjustable resilient springs constantly tending to prevent the movement of said vertical bearing members away from each other, and adjustable stops for limiting the maximum horizontal movement of said vertical bearing members away from each other. A second stop member is provided to limit the movements of the bearing members toward each other. The bearing members are mounted on the ends of telescoping members. The bearing members are associated with graduated scales to show the extent of travel of the bearing members.

REFERENCES:
patent: 1518361 (1924-12-01), Ruden
patent: 1548849 (1925-08-01), Ruden
patent: 2106994 (1938-02-01), Chapman
patent: 2132862 (1938-10-01), Dilates
patent: 3174343 (1965-03-01), Kasulis

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