A SCISSOR JACK
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United States of America Patent
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Issued Date -
Nov 21, 2019
app pub date -
Dec 20, 2017
filing date -
Dec 20, 2017
priority date (Note) -
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status (Latency Note)
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Abstract
The invention provides a scissor jack which includes a threaded ball screw drive shaft with a working end secured to an output connector of a planetary gearbox at the first elbow and extending through a corresponding ball screw nut assembly at a second elbow. An operating shaft is slidably engaged with and locked for rotation of an input connector of the planetary gearbox. A lock mechanism is provided to include a first mating component supported on and for rotation with the operating shaft and a second mating component fixed in relation to a housing of the planetary gearbox. The first and second mating components are provided with cooperating formations that movable into overlapping engagement to lock the operating shaft in relation to the planetary gearbox housing.
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