Device for opening and closing the outlet of a worm conveyor

Details Device for opening and closing the outlet of a worm conveyor Device for opening and closing the outlet of a worm conveyor

1980-03-24

1982-03-30

Goldberg, Howard N.

Dispensing

Agitator followed by discharge assistant and/or...

Free engagement-type connection

198531, 198671, 222240, 222311, 222413, B65G 4719

Patent

active

043220215

ABSTRACT:
At its outlet end, a rotary feed screw coacts with a control element which, in a first position relative to the screw, closes a delivery conduit. To effect a dispensing operation, the control element is moved to a second position relative to the screw to form therewith a discharge opening through the delivery conduit, the dispensing being effected by rotating the screw and said opening together to maintain said opening. When the dispensing is to be stopped, the control element is returned to its first position relative to the screw.

REFERENCES:
patent: 1520669 (1924-12-01), Ziegner
patent: 2002420 (1935-05-01), Strosk
patent: 2527876 (1950-10-01), Curtis
patent: 2699272 (1955-01-01), Barth
patent: 2753089 (1956-07-01), Phillips
patent: 3333679 (1967-08-01), Zimmermann et al.

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