Elliptical exercise apparatus

Details Elliptical exercise apparatus Elliptical exercise apparatus

2008-05-06

2008-05-06

Crow, Stephen R. (Department: 3764)

Exercise devices

Involving user translation or physical simulation thereof

Stair climbing

C482S057000

Reexamination Certificate

active

07367925

ABSTRACT:
An elliptical exercise apparatus includes two cranks disposed rotatably on a frame and rotatable about a common crank axis, two rails each disposed fixedly on the frame and having a non-circular guide slot, two extension links connected respectively, radially, and slidably to the cranks and mounted with rollers disposed respectively and movably within the guide slots, two connector members disposed on the frame and reciprocatable along a longitudinal direction of the frame, and two foot links each having a first end connected pivotally to the corresponding extension link and a second end connected pivotally to the corresponding connector member. When the rollers move along the rails, the extension links are extendable and retractable relative to the cranks, respectively.

REFERENCES:
patent: 6019710 (2000-02-01), Dalebout et al.
patent: 6468184 (2002-10-01), Lee
patent: 6629909 (2003-10-01), Stearns et al.
patent: 6749540 (2004-06-01), Pasero et al.
patent: 7041034 (2006-05-01), Stearns et al.
patent: 7163491 (2007-01-01), Rufino
patent: 7214167 (2007-05-01), Stearns et al.

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