Coating apparatus – Projection or spray type – Moving projector
Patent
1978-02-24
1980-04-15
McIntosh, John P.
Coating apparatus
Projection or spray type
Moving projector
118324, 118DIG4, B05C 500
Patent
active
041978129
ABSTRACT:
A curtain coater includes separate infeed and outfeed conveyors defining a space. Two separate coating systems are mounted on a carriage in the space for selective movement into a coating position. Each coating system includes a separate coating head, trough for the recovery of unused coating material, and doctor blade. A chrome roll is positioned in the space for selective engagement by the doctor blades. When the first head is in the coating position, the first doctor blade engages the roll and the second doctor blade is in a storage position covering the second trough to close the second coating system. When the second coating system is in the use position, the first doctor blade is in the storage position over its trough and the second doctor blade is in its use position in engagement with the roll. A synchronous driving mechanism for the infeed conveyor, roll and outfeed conveyor includes hydraulic motors for the roll and outfeed conveyor. These hydraulic motors are coupled in series in a hydraulic circuit to insure their synchronous operation. The infeed conveyor is driven through an air clutch assembly from the roll to insure its synchronous operation with the roll.
REFERENCES:
patent: 1976539 (1934-10-01), Bonniksen
patent: 3532073 (1970-01-01), Nelson
patent: 3766885 (1973-10-01), Brenner et al.
Gilliam Frank D.
McIntosh John P.
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