Patents by Inventor Daniel Auproux

Daniel Auproux 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).

  • Electrically insulating locking insert for a seal, corresponding seal, and method of manufacturing such inserts
    Patent number: 5645285
    Abstract: A locking insert 4 for joining the male and female ends of spheroidal-graphite cast-iron pipes conveying fluids under pressure has a generally planar shape, and includes at least two metal parts 4A, 4B fixed to each other by an electrically insulating junction layer 4C.
    Type: Grant
    Filed: March 20, 1995
    Date of Patent: July 8, 1997
    Assignee: Pont-A-Mousson S.A.
    Inventors: Alain Percebois, Daniel Auproux, Philippe Renard