Arrangement in connection with a gas mixer

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United States of America Patent

PATENT NO 5722449
SERIAL NO

08868469

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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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.

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Patent Owner(s)

Patent OwnerAddress
INSTRUMENTARIUM OYHELSINKI

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Heinonen, Erkki Helsinki, FI 47 952
Paloheimo, Markku Helsinki, FI 12 453

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