Dispensing – Supply containers with traps – With trap chamber cutoffs
Patent
1987-07-16
1989-05-16
Shaver, Kevin P.
Dispensing
Supply containers with traps
With trap chamber cutoffs
222504, 222542, 222561, 1052822, 251212, 414221, G01F 1128
Patent
active
048302333
ABSTRACT:
A sluice type apparatus for discharging batches of material from a pressurized enclosure has a container with an upper inlet and a lower outlet each closable by a slide gate. Preferably, each slide gate has two slide gate members driven by respective piston cylinder devices so that one gate is closed while the other gate is open and vice versa. At least the slide gate members for opening and closing the inlet are withdrawn from their inlet closing position into a respective outwardly closed or sealed chamber for making it easier to keep the container pressurized. The seals between the chamber entrance slots and the respective slide gate member are not required to be precision seals because any material that may pass into these outwardly closed or sealed chambers is easily removed again.
REFERENCES:
patent: 2915022 (1959-12-01), Dorey
patent: 3190509 (1965-06-01), Kirchhoefer
patent: 3232494 (1966-02-01), Poarch
patent: 3262610 (1966-07-01), Jordan
patent: 3303974 (1967-02-01), Bleueler
patent: 3834595 (1974-09-01), Brock et al.
patent: 4060183 (1977-11-01), Puurunen
patent: 4221307 (1980-09-01), Peterson
Thelen Hubert
Wesp Menrad
Eschweiler Bergwerks-Verein AG
Fasse W. G.
Huson Gregory L.
Kane, Jr. D. H.
Shaver Kevin P.
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