Hoist apparatus
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 6, 2002
Grant Date -
N/A
app pub date -
Oct 10, 2000
filing date -
Jul 14, 2000
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The hoist apparatus includes a chain for raising or lowering an object; an upper hook member; a hoist body member suspended by the upper hook member; a lower hook member for hoisting the object mounted to the hoist body member at a bottom end thereof for hoisting the object; a pneumatic motor disposed in the hoist body member for winding the chain up or down; and a control unit for driving or suspending the hoist body member; wherein a distance of the chain between the control unit and the lower hook member is set to be variable.
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