Playground unit having governor for controlling rotational speed
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United States of America Patent
Stats
-
Mar 14, 1989
Issued Date -
N/A
app pub date -
Jul 31, 1986
filing date -
Sep 28, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A playground unit having a rotatable horizontally disposed deck adapted to support at least one passenger is provided with a control means operatively connected to the deck to limit the rotational speed thereof. The control means is a hydraulic governor comprising a fluid reservoir, a pump, and a valve with interconnecting fluid lines and check valves providing appropriate directional flow of fluid between the reservoir, pump and valve. The valve automatically moves between an open and closed position depending upon the rotational speed of the unit. The force required to maintain the rotational speed of the playground unit is much greater when the valve is closed as compared to when the valve is open.
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Family
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Cited Art Landscape
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