Scissor Jack
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United States of America Patent
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N/A
Issued Date -
Jan 13, 2011
app pub date -
Jul 8, 2010
filing date -
Jul 8, 2009
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Scissor jacks are disclosed herein. In one embodiment, a scissor jack includes a base, a saddle, a leadscrew, and a pair of arms. Each arm is rotatably coupled to the base and the saddle, and each arm is hinged at an elbow. A locking nut member having a threaded surface complementary to the leadscrew is rotatably coupled to one of the arms. The locking nut member is rotatable between an engaged configuration in which the threaded surface engages the leadscrew and a released configuration in which the threaded surface is disengaged from the leadscrew. The saddle is movable toward or away from the base without rotating the leadscrew while the locking nut member is at the released configuration, and the locking nut member must be at the engaged configuration for rotation of the leadscrew to cause the saddle to move toward or away from the base.
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