Gas and liquid contact apparatus – Fluid distribution – Valved
Patent
1990-04-12
1991-11-05
Miles, Tim
Gas and liquid contact apparatus
Fluid distribution
Valved
261 63, 261DIG65, 12820314, 12820414, B01F 304, A61M 1104
Patent
active
050629999
ABSTRACT:
The invention is directed to a vaporizer for an anesthetic medium having a throttle arrangement for throttling the gas flowing therethrough. A compensating arrangement is provided for adjusting a throttle gap in dependence upon ambient temperature and has a rod body made of a material having a low thermal coefficient of expansion. This rod body is accommodated in a sleeve made of a material having a high thermal coefficient of expansion. The rod body is tightly joined at one end thereof to the sleeve and, at its other end, the rod body is joined to a molded part. This molded part and a second molded part conjointly define the throttle gap. With the invention, a thermal adjustment device is provided for the throttle gap for which only simply formed parts are used and which are made of material not resistant to corrosion and which are easily galvanized. The housing of the throttling device is of a complicated configuration and can be made of a corrosion resistant material. The sleeve is surrounded by an enclosure made of corrosion resistant material which is closed in a gastight manner with respect to the throughflow channel conducting the anesthetic gas. The sleeve rests on its sleeve support at its end facing toward the molded part.
REFERENCES:
patent: 3534732 (1970-10-01), Bickford
patent: 3588057 (1971-06-01), Breiling
patent: 3630438 (1971-12-01), Bickford
patent: 3671024 (1972-06-01), Breiling
patent: 3833171 (1974-09-01), Gifford
patent: 4017566 (1977-04-01), Seidel
patent: 4059657 (1977-11-01), Hay
patent: 4879997 (1989-11-01), Bickford
Falb Wolfgang
Mohr Helmut
Wallroth Carl F.
Dragerwerk Aktiengesellschaft
Miles Tim
Ottesen Walter
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