Hand grip exercise device

Details Hand grip exercise device Hand grip exercise device

1978-08-29

1980-12-23

Pinkham, Richard C.

Undertaking

A63B 2100

Patent

active

042406242

ABSTRACT:
A hand grip exercise device comprising an elongated enclosure having a cavity therein. The enclosure is of a size to be grasped and squeezed by a hand of the user. The enclosure has a peripheral wall which is resiliently deformable and which can be deformed radially inwardly. Resilient deformable material is provided in the cavity so that manual deformation of the peripheral wall radially inwardly resiliently deforms the material. This increases the squeezing force which the user must apply to the peripheral wall to deform it radially inwardly.

REFERENCES:
patent: 1817616 (1931-08-01), Goff
patent: 2269871 (1942-01-01), De Botelho
patent: 3611807 (1971-10-01), Brandell
patent: 3658326 (1972-04-01), Fawick
patent: 4040619 (1977-08-01), Landi

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