Gas blending apparatus

Details Gas blending apparatus Gas blending apparatus

1989-05-02

1990-05-29

Rolla, Joseph J.

Dispensing

Gas or vapor dispensing

222 57, 222145, 222396, 222399, 261 643, 261 16, 261DIG7, 137114, B67B 724

Patent

active

049288504

ABSTRACT:
An apparatus for blending two gases together in precisely adjustable proportions. The apparatus includes a mechanically adjustable, blending subassembly adapted to receive the first gas at a predetermined pressure and a one to one force balanced pneumatic relay which is operated by the first gas and which meters the flow of the second gas to the blending subassembly at a pressure substantially equal to the pressure of the first gas being supplied to the blending subassembly.

REFERENCES:
patent: 3534753 (1970-10-01), Ollivier
patent: 3643677 (1972-02-01), Begleiter
patent: 3738107 (1973-06-01), Miller
patent: 4015617 (1977-04-01), Connolly
patent: 4364493 (1982-12-01), Raynes et al.
patent: 4827965 (1989-05-01), Wates
patent: 4874116 (1989-10-01), Fallon et al.

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