Lock and elevator arrangement for loading workpieces into the wo

Details Lock and elevator arrangement for loading workpieces into the wo Lock and elevator arrangement for loading workpieces into the wo

1979-04-30

1981-07-14

Sheridan, Robert G.

Material or article handling

Apparatus for moving material between zones having different...

For carrying standarized mechanical interface type

414222, 414331, B65B 2102

Patent

active

042783801

ABSTRACT:
In apparatus having a work chamber in which workpieces are treated under high vacuum, that improvement comprising an inner chamber having a capacity for a plurality of workpieces, an outer chamber, vacuum means for evacuating the inner and outer chambers, a first valve for sealing between the work chamber and the inner chamber, a second valve for sealing between the inner and outer chambers, a third valve for sealing between the outer chamber and the atmosphere, loading means for loading workpieces through the third valve into the outer chamber from the atmosphere, and transfer means for transferring individual workpieces through the second valve between the inner and outer chambers, and for transferring individual workpieces through the first valve between the inner chamber and the work chamber.

REFERENCES:
patent: 3404661 (1968-10-01), Mathias et al.
patent: 3902615 (1975-09-01), Levy et al.
patent: 4141458 (1979-02-01), Brooks et al.

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