Exerciser for lower leg, ankle, and foot muscles

Details Exerciser for lower leg, ankle, and foot muscles Exerciser for lower leg, ankle, and foot muscles

1977-11-21

1980-02-05

Johnson, Richard J.

Undertaking

128 25B, 272132, 403138, A63B 2304

Patent

active

041869206

ABSTRACT:
An exerciser for use in the rehabilitation of the leg, ankle, and foot muscles has a foot support connected to a base of a ball and socket joint enabling the support to be tilted in any direction by a foot supported thereby. The joint includes a threaded member operable to provide selected resistance to such tilting and a pointer and scale are also provided to enable the resistance to be correlated to the size of the supported foot.

REFERENCES:
patent: 478166 (1892-07-01), Madsen
patent: 1358640 (1920-11-01), Koyama
patent: 1509793 (1924-09-01), Thompson
patent: 1531670 (1925-03-01), Levy
patent: 1535391 (1925-04-01), Anderson
patent: 2035549 (1936-03-01), Jones
patent: 2206902 (1940-07-01), Kost
patent: 2256763 (1941-09-01), Reed
patent: 2906573 (1959-09-01), Runton
patent: 3134591 (1964-05-01), Conn
patent: 3525522 (1970-08-01), Piller
patent: 3782721 (1974-01-01), Passera
patent: 3988931 (1976-11-01), Perryman

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