Exerciser having improved resistive device

Details Exerciser having improved resistive device Exerciser having improved resistive device

2007-08-28

2007-08-28

Donnelly, Jerome (Department: 3764)

Exercise devices

Involving user translation or physical simulation thereof

Rowing

C482S057000

Reexamination Certificate

active

10810480

ABSTRACT:
An exerciser includes a shaft rotatably disposed on a base, a housing rotatably engaged on the shaft and having a chamber formed by an outer peripheral wall which has a groove, a belt wound around the tube for rotating the housing, a barrel received in the chamber of the housing and secured to the shaft and having a slot. A coil spring is received in the housing and has two ends engaged into the slot of the barrel and the groove of the outer peripheral wall of the housing. A cover includes a space formed by an outer peripheral fence, to suitably enclose the chamber of the housing.

REFERENCES:
patent: 2131570 (1938-09-01), Riley
patent: 2512911 (1950-06-01), Benice
patent: 5916069 (1999-06-01), Wang et al.
patent: 6090017 (2000-07-01), Wang
patent: 6273845 (2001-08-01), Liou
patent: 6488611 (2002-12-01), Ambrosina et al.
patent: 6761670 (2004-07-01), Liou

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