Exercise device for physical therapy

Details Exercise device for physical therapy Exercise device for physical therapy

1985-11-26

1986-09-23

Apley, Richard J.

Undertaking

441 65, 441 67, 272 56, 272 1B, 272 33A, A63B 2304, A63G 1100, A63H 116

Patent

active

046131310

ABSTRACT:
A solid, rigid foam device having a continuous outer skin, a flat, circular upper surface that merges smoothly into a symmetric, oblated spherical surface, the upper surface having four, spaced, shallow indentations around its periphery and a number of anchor points that do not extend above the flat surface, the anchor points typically being nuts embedded in the foam plastic body.

REFERENCES:
patent: D255820 (1980-07-01), Borden et al.
patent: 2826424 (1958-03-01), Erickson
patent: 3110047 (1963-11-01), Bringman
patent: 3279794 (1966-10-01), Jenkins
patent: 3295847 (1967-01-01), Matt
patent: 3581328 (1971-06-01), Smith
patent: 3586321 (1971-06-01), Gehrke
patent: 3604722 (1971-09-01), Boley
patent: 3649007 (1972-03-01), Thomas
patent: 3694837 (1972-10-01), Von Norring
CLEO Learning Aids--Cleveland, Ohio, p. 93.

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