Vacuum sequencing system with weight controlled material draw cy

Details Vacuum sequencing system with weight controlled material draw cy Vacuum sequencing system with weight controlled material draw cy

1980-09-22

1983-04-12

Marmor, Charles A.

Conveyors: fluid current

With means to control conveying fluid or movement of load in...

Control of conveying fluid

406 28, 406170, 222 56, 222 55, 222134, 222136, B65G 5366

Patent

active

043796630

ABSTRACT:
A weight sensitive arrangement for controlling the material draw cycle of a vacuum sequencing system based on the weight of material delivered to a pellet receiver included in the system. The material is drawn by a vacuum into the receiver under the control of a dump valve. The receiver deflects downwardly when loaded and is equipped with a U-shaped deflection beam having an upper arm that deflects in proportion to the receiver deflection. A screw carried on the upper arm of the beam contacts a microswitch when the receiver is loaded to a preselected weight. The microswitch then activates the dump valve to interrupt the vacuum, thereby terminating the material draw cycle and effecting discharge of the batch of material in the pellet receiver.

REFERENCES:
patent: 3309146 (1967-03-01), Russell
patent: 3844446 (1974-10-01), Solt
patent: 3944118 (1976-03-01), Trill
patent: 3989308 (1976-11-01), Zimmermann et al.
"Dillon Force Control Switch", Catalog J1-5, May 1974.

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