Exercise devices – Involving user translation or physical simulation thereof – Stair climbing
Reexamination Certificate
2008-03-19
2008-12-23
Crow, Steve R (Department: 3764)
Exercise devices
Involving user translation or physical simulation thereof
Stair climbing
C482S063000, C482S051000
Reexamination Certificate
active
07468022
ABSTRACT:
The present invention provides a bidirectional linkage single damping mechanism suitable for a leg exerciser. The invention includes a circular drive element, which shifts circularly to define a first section and a second section in opposite motion directions. A brake swinging arm, provided with a coupling end and a swinging end. The coupling end is connected with a treading rotation axis; and the swinging end is connected with either section. The two sections drive separately two drive pulleys. A bidirectional drive pulley assembly has two rotary pulleys and two drive pulleys connected by a unidirectional bearing. The bidirectional drive pulley assembly then drives a damping wheel assembly. With this invention, it is possible to provide a damping mechanism that can be connected with the leg exercisers for an improved resistance.
REFERENCES:
patent: 3603121 (1971-09-01), Burkland
patent: 4574649 (1986-03-01), Seol
patent: 5135447 (1992-08-01), Robards et al.
patent: 5238462 (1993-08-01), Cinke et al.
patent: 6824505 (2004-11-01), Chang
patent: 7086991 (2006-08-01), Williams et al.
patent: 7276018 (2007-10-01), Studdard
patent: 2003/0060343 (2003-03-01), Sechrest et al.
Crow Steve R
Egbert Law Offices PLLC
Hexon Enterprise Co., Ltd.
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