Arrangement in connection with a gas mixer

Details Arrangement in connection with a gas mixer Arrangement in connection with a gas mixer

1997-06-03

1998-03-03

Hepperle, Stephen M.

Fluid handling

Self-proportioning or correlating systems

Self-proportioning flow systems

12820325, 12820421, 13710121, A61M 1610, G05D 1113

Patent

active

057224498

ABSTRACT:
An arrangement in connection with a gas mixer, which is arranged to form a mixed gas of oxygen and another gas to be mixed with it. To provide a simple and reliable arrangement, before the mixed gas is formed the oxygen is arranged to be supplied through both a mechanical adjusting means, and a mechanical and electronic flow-measuring means. The other gas to be mixed with oxygen is arranged to flow through an electronic flow-measuring device. The flow of the other gas is arranged to be regulated by means of an electronically controlled regulating valve, whereupon the electronic flow-measuring means, the electronic flow-measuring device, and the electronically controlled regulating valve are arranged to be operated by means of a control unit.

REFERENCES:
patent: 4237925 (1980-12-01), Urushida
patent: 4328823 (1982-05-01), Schreiber
patent: 4345612 (1982-08-01), Koni et al.
patent: 4526188 (1985-07-01), Olsson et al.
patent: 4576159 (1986-03-01), Hahn et al.
patent: 5205322 (1993-04-01), Merick et al.
patent: 5435332 (1995-07-01), Heinonen

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