Triple gate valve assembly

Details Triple gate valve assembly Triple gate valve assembly

1984-10-26

1985-12-31

Chambers, A. Michael

Fluid handling

Systems

Programmer or timer

13761414, 1376275, 13762413, 222445, 222504, 251279, F17D 300, G01F 1128

Patent

active

045614679

ABSTRACT:
A valve assembly including three separate gate valves aligned serially with one another and a mechanical linkage for operating the three separate gates in coordination with one another to permit small pieces of lumpy or granular and particulate solid materials to flow under influence of gravity through the three valves from a low pressure zone into a high pressure zone, without reverse flow of material from the high pressure zone to the low pressure zone. Each gate is biased to a closed condition and provides a substantially airtight seal when it is closed to prevent reverse flow from the high pressure zone to the low pressure zone. A mechanical linkage opens the first and last gates simultaneously and alternatingly opens the middle gate when the first and last gates are closed.

REFERENCES:
patent: 102745 (1870-05-01), Young
patent: 1814222 (1931-07-01), Morehouse
patent: 2626066 (1953-01-01), Rasmussen
patent: 2694497 (1954-11-01), Stock
patent: 3556358 (1971-01-01), Armstrong
patent: 3813015 (1974-05-01), Armstrong
patent: 3833137 (1974-09-01), Mathews
patent: 3940981 (1976-03-01), Covey et al.

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