Material or article handling – Device for emptying portable receptacle – With jarring means
Patent
1996-11-01
1998-06-02
Krizek, Janice L.
Material or article handling
Device for emptying portable receptacle
With jarring means
414757, 414936, 414937, B65G 4724
Patent
active
057590079
ABSTRACT:
The invention provides a manually operated machine for radially aligning one or more semiconductor wafers. The machine includes an elongated first "notch" roller for rotatably engaging the edge of the wafers, a gear train, and a hand crank for manually rotating the first roller in cooperation with the gear train. The wafers are aligned according to the notches as the wafers are engaged and rotated by the notch roller until the notch in each wafer falls over and is disengaged by that roller. The manual notch finder may also include an elongated second "position" roller for rotatably engaging the edge of the wafers. The position roller is disposed laterally near the notch roller and sized and shaped to engage the edge of the wafers fully along the periphery of each wafer so that the aligned wafers can be positioned to any degree of radial orientation. The invention also provides a combination notch or flat finder machine integrated with a wafer transfer machine. The combination machine includes a base plate, a translatable transfer arm, and a notch finder machine such as that described above, or a flat finder machine.
REFERENCES:
patent: 166468 (1875-08-01), King
patent: 203621 (1878-05-01), Hill
patent: 4662811 (1987-05-01), Hayden
patent: 4813840 (1989-03-01), Prabhakar et al.
patent: 5383759 (1995-01-01), Lin
H-Square Corporation 1994-1995 Edition pp. 8-1 through 8-4.
H-Square Corporation 1994-1995 Edition pp. 6-1 through 6-6, 7-1, 2.
Brown Brian D.
Larsen Kevin A.
Molebash John S.
Moore Shelby K.
Nichols Ernest C.
Krizek Janice L.
Micro)n Technology, Inc.
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