Knee exerciser

Details Knee exerciser Knee exerciser

1980-12-17

1983-05-24

Pinkham, Richard C.

Undertaking

272141, 272900, 272143, 272DIG5, A63B 2104

Patent

active

043847153

ABSTRACT:
A vertically elongated tube houses a compression coil spring reacting between one end of a cable within an upper end portion of the tube and a tube anchoring frame to develop an exercising force transmitted by the cable. A pulley from which the cable extends externally from a lower end portion of the tube to a body harness, guides cable movement under forces applied through the cable at an angle to the tube within a wide range.

REFERENCES:
patent: 1052962 (1913-02-01), Reach
patent: 1969165 (1934-08-01), Turner
patent: 2825222 (1958-03-01), Lindenauer et al.
patent: 4116434 (1978-09-01), Bernstein

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