Support jack
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United States of America Patent
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Apr 17, 2012
Grant Date -
Aug 21, 2008
app pub date -
Jul 20, 2006
filing date -
Jul 23, 2005
priority date (Note) -
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status (Latency Note)
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Abstract
A support jack for supporting semitrailers including a vertically telescopically displaceable supporting device having an outer sleeve and an inner sleeve. A spindle nut has projections and contact elements for being positively detachably connected to the sleeves. The projections interact with openings of the inner sleeve for fixing the spindle nut in the direction of the longitudinal axis of the support jack. The contact elements interact with an inner side of the outer sleeve for fixing the spindle nut in the direction of rotation about the longitudinal axis. A method of assembling a support jack is also described, in which the spindle nut is connected detachably to the inner sleeve by at least one translatory and one rotary joining movement or at least two translatory joining movements.
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