Exercise devices – Involving user translation or physical simulation thereof – Treadmill for foot travel
Reexamination Certificate
2006-12-26
2006-12-26
Richman, Glenn E. (Department: 3764)
Exercise devices
Involving user translation or physical simulation thereof
Treadmill for foot travel
C482S051000, C482S008000
Reexamination Certificate
active
07153241
ABSTRACT:
The present invention relates to an electric treadmill in which the tread base neighboring upon the running belt and based upon the central reference point is provided with sensing lines for acceleration, sensing lines for deceleration both of which are arranged one after the other. When the runner touches the fixed sensing position by light wave or acoustic wave, a CPU located within the electric console gives a command according to the sensing position to accelerate or decelerate the motor such that an immediate control of the rotational speed of the running belt is achieved. In addition, a sensing line for stop can be disposed behind the decelerating sensing line. When the operator continues to be shifted forwards, thereby contacting with the sensing line for stop, CPU gives a command to stop the motor immediately. Thus, the safety of the operator can be more ensured.
REFERENCES:
patent: 4708337 (1987-11-01), Shyu
patent: 5314391 (1994-05-01), Potash et al.
patent: 5368532 (1994-11-01), Farnet
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