Foldaway threadmill

Details Foldaway threadmill Foldaway threadmill

2007-05-01

2007-05-01

Crow, Stephen R. (Department: 3764)

Exercise devices

Involving user translation or physical simulation thereof

Treadmill for foot travel

Reexamination Certificate

active

10627318

ABSTRACT:
A foldaway treadmill is disclosed including: one pair of vertical posts interconnected by one cross bar, one base frame, one tread base, one supporting unit, one or a plurality of pneumatic-hydraulic cylinders, characterized in that, inside the said pneumatic-hydraulic cylinders, there are pneumatic-hydraulic chamber and compressing chamber, separated by piston whereon there is draining-functioned groove, filled with air and oil of suitable proportion to provide more safe, smooth and convenient folding up and out of foldaway treadmill than conventional ones.

REFERENCES:
patent: 4720093 (1988-01-01), Del Mar
patent: 4913396 (1990-04-01), Dalebout et al.
patent: 5192255 (1993-03-01), Dalebout et al.
patent: 5591106 (1997-01-01), Dalebout et al.
patent: 6213919 (2001-04-01), Wang et al.

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