Pellet-lifting apparatus

Details Pellet-lifting apparatus Pellet-lifting apparatus

1988-12-14

1990-03-13

Spar, Robert J.

Work holders

With fluid means

Vacuum-type holding means

269301, 279 3, B25B 1100

Patent

active

049077902

ABSTRACT:
An apparatus for lifting a pellet which is on a wafer sheet including a pin holder having a plurality of peripheral pin insertion holes formed in an X pattern. The pin holder also has V-shaped cut-out areas in the left and right sides surrounded by the X pattern, and the pin holder is driven up and down by a vertical drive. The pellet-lifting apparatus further includes peripheral lifting pins inserted into the peripheral pin insertion holes, and V-shaped bridges fastened to the pin holder so that the peripheral lifting pins are held between inner surfaces of the cut-out areas in the pin holder. With such a structure, peripheral lifting pins are set in the peripheral pin insertion holes of the pin holder so that the pins meet different sizes of pellets and lift them in a stable manner.

REFERENCES:
patent: 1544107 (1925-06-01), Sharples
patent: 2982558 (1961-05-01), Multer
patent: 3938789 (1976-02-01), Solie et al.
patent: 4509891 (1985-04-01), Lipslomb

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