Measuring and testing – Volume or rate of flow – Expansible chamber
Patent
1988-10-20
1990-01-09
Goldstein, Herbert
Measuring and testing
Volume or rate of flow
Expansible chamber
G01F 1108, G01F 1516
Patent
active
048919799
ABSTRACT:
A gas meter includes a housing made of thermoplastic material having an inside wall defining two measuring chambers and a deformable membrane disposed between the two measuring chambers. The deformable membrane is formed from a film of thermoplastic elastomer material bonded to a synthetic fiber sheet. The periphery of the membrane is hot-welded to the wall between the two measuring chambers to form a gastight seal between the chambers. A mechanical drive train includes at least one lever having a hinged portion made from a thermoplastic material which is hot-welded to the middle of the membrane. The train rives a mechanical distributor disposed outside the housing.
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Ad from The Bellofram Corporation-May 10, 1984.
Gaudier Dale V.
Goldstein Herbert
Schlumberger Industries S.A.
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