Exercise devices – For head or neck
Patent
1991-04-29
1992-08-04
Apley, Richard J.
Exercise devices
For head or neck
482904, 482122, 482129, 482 89, A63B 23025
Patent
active
051354454
ABSTRACT:
A neck exercising apparatus (10) including an elongated support member (14) adapted to be suspended from a door (100) and operatively connected to a generally U-shaped leaf spring member (20) having a head rest member (30) movably attached to the outboard leg (22) of the spring member (20); wherein, the position of the head rest member (30) on the spring member (20) determines the amount of resistance provided by the spring member (20).
REFERENCES:
patent: 2049434 (1936-08-01), Erickson
patent: 2633124 (1953-03-01), Yeuin
patent: 2701564 (1955-02-01), Wilhelm
patent: 4239209 (1980-12-01), Curchod
patent: 4278249 (1981-07-01), Forrest
patent: 4537393 (1985-08-01), Kusch
patent: 4662629 (1987-05-01), Plovie
patent: 4662630 (1987-05-01), Dignard et al.
Christensen Kim D.
Greenawalt Kent S.
Moore J. Forrest
Sporer C. F. Sunny
Apley Richard J.
Reichard Lynne
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