Electric car jack
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United States of America Patent
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Nov 8, 2016
Grant Date -
May 26, 2016
app pub date -
May 15, 2015
filing date -
Nov 25, 2014
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An electric car jack includes a spindle, a second middle gear, an elastic ring, an upper lining, a third middle gear, a lower lining, an adjusting and positioning ring and a positioning screw ring that jointly form a torque limiting mechanism with a torque limitation effect and a positioning plate, a power gear, a brake disc, a disc tray, an output shaft and a latching member that jointly form a powerless brake mechanism with a ratcheted braking effect. Both torque limiting mechanism and powerless brake mechanism are compatibly installed in a reduction gear of the machinery part f the electric car jack to maximize their effects.
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