Mechanism for maintaining a swinging movement

Details Mechanism for maintaining a swinging movement Mechanism for maintaining a swinging movement

1985-09-17

1988-02-02

Johnson, Richard J.

Undertaking

248370, 5108, A63G 916

Patent

active

047225211

ABSTRACT:
A swinging mechanism for maintaining pendular movement in a swing. A revolving plate is provided which engages a propulsion member on the swing so as to apply torque to the swing during part of the swing cycle, maintaining pendular movement of the swing despite energy loses due to air friction and the like. Switches are provided to activate rotation of the revolving plate when the swing has reached a rear position, and to continue movement of the revolving plate to return it to a neutral or original position in preparation for the next cycle of the swing movement.

REFERENCES:
patent: 2024855 (1935-12-01), Goetter
patent: 2520563 (1950-08-01), Preston
patent: 3261032 (1966-07-01), Reardon
patent: 3361405 (1968-01-01), Gottlieb
patent: 3842450 (1974-10-01), Reza Pad
patent: 4150820 (1979-04-01), Bochmann
patent: 4211401 (1980-07-01), Cunard
patent: 4491317 (1985-01-01), Bansal

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