Material or article handling – Device for emptying portable receptacle – Nongravity type
Patent
1988-05-25
1990-02-13
Spar, Robert J.
Material or article handling
Device for emptying portable receptacle
Nongravity type
414786, 294 34, 2941031, 901 39, 901 37, B65G 106
Patent
active
049002147
ABSTRACT:
An apparatus for releasably engaging a semiconductor wafer (12) comprises a frame (18) adapted for engagement by a robotic arm (26). The frame mounts one end of an elongated arm (30) dimensioned for insertion into a pocket (14) in a wafer-carrying cassette (16). The arm has a first jaw (34) depending from its end distant from the frame for engaging a portion of the edge of the wafer. A second jaw (38) extends through a slot (46) in the arm so as to be opposite the first jaw for engaging a portion of the edge of the wafer diametrically opposed to that engaged by the first jaw. The second jaw is displaced to and from the first jaw by a pneumatic cylinder (48) to enable the wafer to be releasably captured between the jaws without any damage to the surfaces of the wafer.
REFERENCES:
patent: 1232488 (1917-07-01), Brooks
patent: 1606569 (1926-11-01), Guess
patent: 2002149 (1935-05-01), Kneeland
patent: 2988237 (1961-06-01), Devol, Jr.
patent: 2992848 (1961-07-01), Livensparger
patent: 3233750 (1966-02-01), Bannon
patent: 3648854 (1972-03-01), Potter
patent: 3750804 (1973-08-01), Lemelson
patent: 4002245 (1977-01-01), Mink
patent: 4002254 (1977-01-01), Olofsen
patent: 4266910 (1981-05-01), Pickard
patent: 4293268 (1981-10-01), Mink
patent: 4378189 (1983-03-01), Takeshita et al.
patent: 4410209 (1983-10-01), Trapani
patent: 4457661 (1984-07-01), Flint et al.
patent: 4501527 (1985-02-01), Jacoby
patent: 4533033 (1985-08-01), van Wegen
patent: 4553069 (1985-11-01), Purser
patent: 4558984 (1985-12-01), Garrett
patent: 4595221 (1986-06-01), de Geus et al.
patent: 4616971 (1986-10-01), Matrone
patent: 4626013 (1986-12-01), Barrows
patent: 4639028 (1987-01-01), Olson
patent: 4685852 (1987-08-01), Rubin et al.
patent: 4696501 (1987-09-01), Webb
patent: 4699414 (1987-10-01), Jones
patent: 4701096 (1987-10-01), Fisher, Jr.
American Telephone and Telegraph Company
Katz Robert S.
Levy Robert B.
Spar Robert J.
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