Conveyors: power-driven – Conveyor for changing attitude of item relative to conveyed... – With magnetism causing change in attitude
Patent
1977-06-06
1979-01-30
Valenza, Joseph E.
Conveyors: power-driven
Conveyor for changing attitude of item relative to conveyed...
With magnetism causing change in attitude
198399, 198406, 198690, 198417, 193 12, 193 46, B65G 4724
Patent
active
041367650
ABSTRACT:
In making electrically asymmetrical semiconductor devices, it is generally necessary to orient all of the devices into a common polarity at some point in the manufacturing operation. To accomplish this, a magnetic turning chute receives those devices which do not have the desired common polarity and turns them into the common polarity. A helical magnetic field is established in the turning chute by arranging strip magnets into vertical helices around a cylinder. As the devices, which have magnetic properties, progress through the helical field, they are turned by the magnetic force. Further turning impetus is provided by nonmagnetic helical tracks disposed to coincide with the helical magnetic field so that the leads of the devices can slide along the tracks while they move through the chute. Air jets may be used to assist in forcing the devices through the apparatus.
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Abraham Bruce C.
Emery, Jr. Loring D.
Griesemer Harold A.
Stroup Robert H.
Bosben Donald D.
Peters Robert Y.
Valenza Joseph E.
Western Electric Company Inc.
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