Schlumberger Industries, Sa

Flonic S.a.

Andre De Rego

In order to make a synthetic membrane for a gas meter of the measuring chamber type, an initial structure (10) of polyester fibers (11), which are preferably woven, is placed between two films (26, 28) of hot meltable elastomer (polyurethane). The hot meltable material is raised to its softening temperature and pressure is applied to cause the films (26, 28) to adhere to the woven structure (10).

Method for making synthetic membranes for a gas meter

In order to make a synthetic membrane for a gas meter of the measuring chamber type, an initial structure of polyester fibers, which are preferably woven, is placed between two films of hot meltable elastomer (polyurethane). The hot meltable material is raised to its softening temperature and pressure is applied to cause the films to adhere to the woven structure.

Method of making a gas meter having a synthetic membrane

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.

Gas meter having a synthetic diaphragm and molded housing

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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Antony, France

Andre De Rego