Patents by Inventor Patrick Lambay

Patrick Lambay 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).

  • Device for fixing a piercing or expanding plug to a piercing or expanding bar
    Patent number: 4483638
    Abstract: The invention relate to fixing a plug in the end of a bar, the assembly being used for production of cylindrical hollow blanks which will be later rolled.The device comprises a plug including at its rear end a shank which can be introduced into an axial socket provided at one end of the bar. A locking means can be introduced transversely through a hole in the wall of the bar and engage its end within a groove realized around the shank. A retaining means holds the locking means in position.The device is used for rapid mounting and dismantling the plug and bar assembly.
    Type: Grant
    Filed: May 29, 1981
    Date of Patent: November 20, 1984
    Assignee: Vallourec
    Inventors: Roland Marie, Michel Locoge, Patrick Lambay