Elevator with linear motor drive assembly

Details Elevator with linear motor drive assembly Elevator with linear motor drive assembly

1992-01-13

1993-08-10

Stephan, Steven L.

Elevator, industrial lift truck, or stationary lift for vehicle

Stationary lift for roadway vehicle or required component...

Having specific drive means for support

310 13, H02K 4102, B66B 900

Patent

active

052351459

ABSTRACT:
A linear motor drive assembly having a first primary and a second primary, with a plurality of highly conductive sheets therebetween is provided. The primaries are fixed to a center support extending lengthwise between the two primaries. In a first embodiment, a pair of highly conductive sheets is arranged between the two primaries, edge to edge, in the same plane. A gap, wide enough to permit the center support to pass through freely, separates the sheets. In a second embodiment, a secondary comprising two halves is also positioned between the two primaries. The two halves are arranged edge to edge, in the same plane, separated by a gap wide enough to permit the center support to pass through freely. Sheets of highly conductive material are fixed to the faces of the secondary halves.

REFERENCES:
patent: 3602786 (1971-08-01), Izhelya et al.
patent: 4454457 (1984-06-01), Nakamura et al.
patent: 5033587 (1991-07-01), Nakai et al.
patent: 5066897 (1991-11-01), Ueda et al.
patent: 5090516 (1992-02-01), Grinaski et al.
patent: 5141082 (1992-08-01), Ishii et al.

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