Freeweight barbell lifting exercise machine with user controllab

Details Freeweight barbell lifting exercise machine with user controllab Freeweight barbell lifting exercise machine with user controllab

1996-08-16

1998-10-20

Apley, Richard J.

Exercise devices

User manipulated force resisting apparatus, component...

Utilizing weight resistance

482 93, A63B 21078

Patent

active

058239219

ABSTRACT:
A freeweight lifting exercise machine having a barbell connected to a cable system operated by a pneumatic motor supported below a lifting bench. An electropneumatic control system operated by a weightlifter using the machine controls the pneumatic motor to apply an exponentially variable lifting force to the cable in response to linear movement of a foot pedal to replicate the function of a "spotter". The control system automatically applies sufficient lifting force to the cable to remove slack from the cable during the lifting mode and nullifies the slack removing force during the lowering mode of a normal lifting exercise enabling the lifter to perform a freeweight lifting exercise free of machine influence.

REFERENCES:
patent: 4561651 (1985-12-01), Hole
patent: 4998721 (1991-03-01), Anders et al.
patent: 5190510 (1993-03-01), Goodger
patent: 5310394 (1994-05-01), Kallius

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