Discharge arrangement for discharging bulk material from a recep

Details Discharge arrangement for discharging bulk material from a recep Discharge arrangement for discharging bulk material from a recep

1999-02-02

2000-09-26

Bomberg, Kenneth

Dispensing

Jarring and/or vibrating

Member reciprocable transversely of material flow

222501, 222504, 222509, 222542, B67D 506

Patent

active

061232335

ABSTRACT:
A discharge arrangement for discharging bulk material through a discharge opening of a receptacle, such as a bin, includes a closure member that is movable from an open position into a closed position relative to the discharge opening. To this end, an actuator assembly is connected to the closure member for moving it into one of its positions. The actuator assembly includes a cylinder having a inner surface diameter which defines a cavity in which a piston is movable in an axial direction. The piston has an outer surface diameter smaller than the inner diameter of the cylinder so as to leave a gap in-between. A rolling membrane between the opposing surfaces of the piston and the cylinder seals this gap and provides rolling friction when the piston moves within the cylinder. A linear guide unit is provided between the cylinder and piston and guides the movement of the latter.

REFERENCES:
patent: 2166484 (1939-07-01), Carlson
patent: 2953166 (1960-09-01), Carlson, Jr.
patent: 3733012 (1973-05-01), Grun
patent: 4470524 (1984-09-01), Semenenko
patent: 4691843 (1987-09-01), Dunan
patent: 5582332 (1996-12-01), Kiefer et al.
patent: 5775544 (1998-07-01), Semenenko
patent: 5893567 (1999-04-01), Bitterli

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