1980-08-25
1982-10-12
Johnson, Richard J.
Undertaking
272134, A01B 2100
Patent
active
043535470
ABSTRACT:
An exercising apparatus utilizes an inclinable table over which is pivotably secured an arm. The arm is pivotably secured to the free end of a piston whose housing is otherwise pivotably secured to a frame to which the arm is secured. The cylinder has the uppermost chamber filled with oil and coupled to an oil receiving vented chamber by way of two parallel pads, each containing a check valve operable in opposed directions. Each path also contains a manually operable valve, one of which is disposed hydraulically in parallel with a valve containing selectably different size orifices. The lower chamber of the cylinder contains an elastic membrane which segregates the lower chamber into two separate compartments, the upper of which is filled with oil and the lower of which contains air. The operation of the cylinder simulates different weights and the effect of gravity thereon as if a user were actually lifting a barbell.
REFERENCES:
patent: 3420273 (1969-01-01), Greer
patent: 3784194 (1974-01-01), Perrine
patent: 3822599 (1974-07-01), Brentham
patent: 4050310 (1977-09-01), Keiser
patent: 4241913 (1980-12-01), Zwayer
Farkas Robert D.
Johnson Richard J.
LandOfFree
Exercising apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Exercising apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Exercising apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-220418