Neck exerciser device and methods

Details Neck exerciser device and methods Neck exerciser device and methods

1989-01-03

1991-04-09

Bahr, Robert

Undertaking

272130, A63B 23025

Patent

active

050058266

ABSTRACT:
A cervical dynamometer and exerciser providing variable isokinetic resistance in all directions of motion comprises an inflated hollow ball having a flexible non-extensible skin, a handle attached thereto, and a gauge for observing and a hand pump for adjusting the pressure in the ball.

REFERENCES:
patent: 2129763 (1938-09-01), Hart
patent: 2510193 (1950-06-01), Pough et al.
patent: 3910572 (1975-10-01), Denler
patent: 4108428 (1978-08-01), Winterbottom
patent: 4114449 (1978-09-01), Dikeman et al.
patent: 4460171 (1984-07-01), Plyhm
patent: 4530496 (1985-07-01), Smith et al.

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