A jack assembly includes a dual threaded screw with a right-hand-threaded section and a left- hand-threaded section. A first drive member mates with the right-hand-threaded section, and a second drive member mates with the left-hand-threaded section. The drive members drive an extendible platform that moves to an extended position when the screw is moved in a first direction, or a retracted position when the screw is moved in a second, opposite direction.
申请公布号
WO2013044055(A2)
申请公布日期
2013.03.28
申请号
WO2012US56610
申请日期
2012.09.21
申请人
QUANTUM ENGINEERED PRODUCTS, INC.;KOZORA, JOSEPH, W.;ALBERT, MICHAEL, J.;MCDOUGAL, TRAVIS, R.
发明人
KOZORA, JOSEPH, W.;ALBERT, MICHAEL, J.;MCDOUGAL, TRAVIS, R.