Wafer transfer hand

Details Wafer transfer hand Wafer transfer hand

1987-10-27

1989-07-18

Cherry, Johnny D.

Handling: hand and hoist-line implements

Contact lens applicator

294 6, 294 271, 29759, 901 30, A47F 1306

Patent

active

048488143

ABSTRACT:
A wafer transferring hand is so constructed that at least three seats made of a soft low-friction material are provided in an integral manner, a groove having a width slightly wider than the thickness of the wafer is formed in the laterally arranged seats, the bottom of the groove being arcuated in a manner conforming to the periphery of the wafer, while a similar groove having an adjustable width is provided in the seat arranged at the center, the bottom of the groove being spaced apart outwardly from the periphery of the wafer, and at least two cut-away portions are provided between the seats so as to provide a gap between the periphery of the wafer and the bottom of the cut-away portion.

REFERENCES:
patent: 3044097 (1962-07-01), Proschold
patent: 3219375 (1965-11-01), Van Pelt
patent: 3918756 (1975-11-01), Saville et al.
patent: 3961819 (1976-06-01), Yocum
patent: 4452480 (1984-06-01), Maier et al.
patent: 4496180 (1985-01-01), Hillman et al.
patent: 4653636 (1987-03-01), Armstrong

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