Gas meter including a synthetic membrane
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United States of America Patent
Stats
-
Oct 25, 1988
Grant Date -
N/A
app pub date -
Feb 11, 1986
filing date -
Feb 12, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
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 gas-tight 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 drives a mechanical distributor disposed outside the housing.
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