Door system for large primate caging
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United States of America Patent
Stats
-
Sep 4, 1990
Grant Date -
N/A
app pub date -
Dec 7, 1988
filing date -
Dec 7, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A door system for an opening separating two areas that contain a primate with the primate being able to control by switches connected to the operating system for opening and closing the door to dictate his ingress and egress between the areas. The caretaker can override the switches controlled by the primate. A hydraulically driven piston, operable through a fluid control cylinder containing a spool valve, raises and lowers the door to close and open the opening. Fluid exhausted from the system by the movements of the piston is discharged upon the floor of one of the areas to keep it clean.
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Family
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