Machine element or mechanism – Mechanical movements – Reciprocating or oscillating to or from alternating rotary
Patent
1992-03-11
1994-06-14
Herrmann, Allan D.
Machine element or mechanism
Mechanical movements
Reciprocating or oscillating to or from alternating rotary
49362, 49412, 160 85, 454 64, F16H 2520, F24F 1302, E05F 100
Patent
active
053199901
ABSTRACT:
A linear drive system with an associated cover system wherein said linear drive system comprises a load, a lead screw, a lead nut operatively engaged to said lead screw such that said lead nut can travel along said lead screw by virtue of rotation of the lead nut, a load engaging structure means connecting the lead nut to the load such that as the lead nut travels along the lead screw, the load is moved, and motor means operatively engaged with the lead nut such that said motor means operates to rotate the lead nut, thereby moving the load.
A cover system an opening formed by two surfaces. Said cover system has a bridge structure, which can be a roller assembly, which is supported by structural means over and across the width of the opening. A band is positioned to cover the opening and is also mounted over the bridge structure. As the bridge structure is moved along the opening, the band is lifted from the opening, thereby allowing access to the opening by a device.
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patent: 4569368 (1986-02-01), Haidlen et al.
Shapiro Steven E.
Veale John R.
California Technical Marketing Inc.
Herrmann Allan D.
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