Playground apparatus

Details Playground apparatus Playground apparatus

1978-10-02

1980-10-07

Pinkham, Richard C.

Undertaking

A63G 1100

Patent

active

042264111

ABSTRACT:
Playground apparatus of the teeter-totter or seesaw type for a plurality of riders which is characterized by completely individual movement of each rider wherein the movement of any one rider does not affect the movement of any other riders, as follows. A plurality of spaced-apart rocker arms are separately pivotally mounted to a vertically disposed support without interconnection to the other of the rocker arms for up and down movement. A biasing member is provided for each of the rocker arms for individually biasing the rocker arms in an upward direction and for allowing downward movement against the bias thereof. A rider supporting unit is on each of the outer ends of each of the rocker arms.

REFERENCES:
patent: 1580508 (1926-04-01), Liles
patent: 1635931 (1927-07-01), Free
patent: 1654169 (1927-12-01), Higginson
patent: 1850927 (1932-03-01), Frederick
patent: 2201036 (1940-05-01), Guerrier
patent: 2252008 (1941-08-01), Joncas
patent: 2461086 (1949-02-01), Schumacher
patent: 2926911 (1960-03-01), Reichel
patent: 3166315 (1965-01-01), Jewett
patent: 3675919 (1972-07-01), Ewers

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