Patents by Inventor Bernard Langevin

Bernard Langevin 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).

  • Disassemblable device for fitting a device between the opposite ends of two pipes
    Patent number: 4311163
    Abstract: Disassemblable device provided for inserting a device between the opposite ends of two pipes comprising two flanges which can be sealingly fixed to the said ends, wherein it also comprises an extensible member constituting a unitary assembly, which can be mounted in retracted manner between the flanges and then extended so as to sealingly bear against the latter, said extensible member being traversed by a passage which is substantially aligned with the axis of the pipes, when it sealingly bears against the flanges.
    Type: Grant
    Filed: January 25, 1980
    Date of Patent: January 19, 1982
    Assignee: Commissariat a l'Energie Atomique
    Inventor: Bernard Langevin