Power jack and method
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United States of America Patent
Stats
-
Jul 24, 1990
Grant Date -
N/A
app pub date -
Apr 24, 1987
filing date -
Apr 24, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An adaptor for a jack having a threadable jack shaft and a support platform that rises or lowers when the threadable jack shaft turns. The adaptor has a housing containing a drive motor that is coupled to a drive shaft. The adaptor has an engagement bracket for engaging releasably the adaptor to the jack. Spring loaded bolts bias the engagement bracket against the face of the housing. A jack and adaptor in combination and a method for operating a jack having support aligning bars wherethrough a threadable jack shaft rotatably passes to raise or lower a support platform of the jack upon rotation.
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Family
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Cited Art Landscape
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