Jack assembly for raising and lowering vehicles
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United States of America Patent
Stats
-
Dec 10, 2013
Grant Date -
Jun 30, 2011
app pub date -
Nov 18, 2010
filing date -
Dec 24, 2009
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The various embodiments herein provide a jack assembly for raising and lowering the vehicles. The assembly comprises a base sheet mounted with two lower arms, a retentive sheet mounted with two upper arms and two shafts. The two upper arms are pivotably connected to the lower arms respectively through the two shafts. A wire rope is passed over a groove provided on a plurality of pulleys rotatably mounted on one of the two shafts. A spanner and a jack handle are provided respectively on the two shafts. When the jack handle is pulled up, the two ends of wire ropes move towards each other to make the two shafts to approach towards each other thereby displacing the lower arms and upper arms to lift the retentive sheet for raising the vehicles with a single pull movement of the jack handle.
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