Patents by Inventor Andre de Rego

Andre de Rego has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method for making synthetic membranes for a gas meter
    Patent number: 5068074
    Abstract: 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).
    Type: Grant
    Filed: October 20, 1988
    Date of Patent: November 26, 1991
    Assignee: Schlumberger Industries, S.A.
    Inventor: Andre De Rego
  • Method of making a gas meter having a synthetic membrane
    Patent number: 4935084
    Abstract: 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.
    Type: Grant
    Filed: October 20, 1988
    Date of Patent: June 19, 1990
    Assignee: Schlumberger Industries, S.A.
    Inventor: Andre de Rego
  • Gas meter having a synthetic diaphragm and molded housing
    Patent number: 4891979
    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.
    Type: Grant
    Filed: October 20, 1988
    Date of Patent: January 9, 1990
    Assignee: Schlumberger Industries, S.A.
    Inventor: Andre De Rego
  • Gas meter including a synthetic membrane
    Patent number: 4779459
    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.
    Type: Grant
    Filed: February 11, 1986
    Date of Patent: October 25, 1988
    Assignee: Flonic, S.A.
    Inventor: Andre de Rego