Vibratory spiral elevator

Details Vibratory spiral elevator Vibratory spiral elevator

1990-06-21

1991-06-18

Skaggs, H. Grant

Conveyors: power-driven

Conveyor section

Reciprocating conveying surface

198770, B65G 2702

Patent

active

050243209

ABSTRACT:
A spiral elevator is described for conveying product from one level to another level up a spiral track. The elevator is powered by a two-mass system having an exciter resiliently supported on the vertical tube. The exciter has a pair of parallel shafts with a vibration generating member mounted on each shaft. A motor is provided for driving each shaft independent of the other shaft. Controls are provided for controlling the vibratory forces generated by the vibration generating members to vary the vibratory forces from substantially zero unbalance to a desired level of unbalance to convey product from the inlet to the outlet of the spiral track.

REFERENCES:
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patent: 2847767 (1958-08-01), Carrier, Jr.
patent: 2927683 (1960-03-01), Carrier, Jr.
patent: 2934202 (1960-04-01), Roder et al.
patent: 3053380 (1962-09-01), Spurlin
patent: 3407670 (1968-10-01), Venanzetti
patent: 3449969 (1969-06-01), Dorris
patent: 3789977 (1974-02-01), Musschoot
patent: 3882996 (1975-05-01), Musschoot
patent: 4267919 (1981-05-01), Schrader
patent: 4495826 (1985-01-01), Musschoot

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