Exercise devices – Hand – wrist – or finger
Patent
1999-07-28
2000-04-25
Crow, Stephen R.
Exercise devices
Hand, wrist, or finger
482 45, 482110, A63B 500, A63B 2122
Patent
active
060538465
ABSTRACT:
A wrist exerciser comprises a lower shell and an upper shell. The lower shell is semispherical and provided therein with a support ring and a rotary member. The upper shell is hollow and semispherical and provided in the top thereof with a round opening. The lower shell is provided with two lower protruded plate members extending therefrom symmetrically and having a first through hole. The upper shell is provided with two upper protruded plate members corresponding to the lower protruded plate members and having a second through hole opposite to the first through hole. The second through hole is provided in the periphery thereof with a plurality of second columnar bodies, each having a hole. The upper protruded plate members and the lower protruded plate members are fastened together by a plurality of screws which are fastened into the holes of the second columnar bodies via the through holes of the first columnar bodies.
REFERENCES:
patent: 4684124 (1987-08-01), Escher
patent: 4858912 (1989-08-01), Boyd
patent: 5399136 (1995-03-01), Bart
patent: 5800311 (1998-09-01), Chuang
patent: 5807215 (1998-09-01), Abe et al.
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