Casing structure of wrist exerciser

Details Casing structure of wrist exerciser Casing structure of wrist exerciser

2005-09-13

2005-09-13

Donnelly, Jerome W. (Department: 3764)

Exercise devices

Hand, wrist, or finger

C482S049000, C482S110000

Reexamination Certificate

active

06942601

ABSTRACT:
A wrist exercise includes a casing defining an interior space rotatably receiving a rotor. The casing includes upper and lower casing members. The upper casing member has a first mating edge forming a first mating device. The lower casing member has a second mating edge forming a second mating device for mating the first mating device to attach the lower casing member to the upper casing member whereby a circumferential groove is defined between the first and second mating edges. A first retention ring is at least partially fit over the upper and lower casing members and forms an inwardly-projecting portion fit into the groove to securely retain the upper and lower casing members in position.

REFERENCES:
patent: 5263908 (1993-11-01), Chen
patent: 5353655 (1994-10-01), Mishler
patent: 5413551 (1995-05-01), Wu
patent: 6042517 (2000-03-01), Gunther et al.
patent: 6186914 (2001-02-01), Lin
patent: 6629908 (2003-10-01), Hamady

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