Conveyors: fluid current – Load flow diverter – divider – or combiner – Movable conduit section
Patent
1998-01-27
2000-06-13
Noland, Kenneth W.
Conveyors: fluid current
Load flow diverter, divider, or combiner
Movable conduit section
B65G 5124
Patent
active
060741368
ABSTRACT:
A multi-port pneumatic switch having a drive system including a motor and a gear reduction box that rotates a rotatable plate which carries a rotateable conduit having an offset end and a non-offset end with the offset end postionable into precise flow alignment with any of a plurality of outlet conduits through the coaction of a photoelectric alignment system that detects a light beam reflection from a reflector on the rotatable plate to immediately shut the power to the drive system and thereby stop further forward rotation of the rotatable plate. With the cessation of power to the drive system a pivotal arm swings into engagement with a radial stop on the rotatable plate to lock the rotatable plate from further forward rotation while the drive system which is powered through a gear reduction drive functions as brake to prevent back rotation of the rotatable plate once the power is shut off to the motor. The coaction of the stops and the drive system brake maintain the rotateable conduit in precise flow alignment with one of the outlet conduits while a set of annular inflatable seals can be inflated to permit one to seal and secure the ends of the rotateable conduit in the flow condition once the conduits are in proper alignment. A set of peripheral flange rollers permits the non-offset end of the rotateable conduit to be rotated about a central axis.
REFERENCES:
patent: 4063572 (1977-12-01), Anderegg et al.
patent: 4252479 (1981-02-01), Scherfenberg
patent: 4264244 (1981-04-01), Steele
Dynamic Air Inc.
Noland Kenneth W.
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