Patents Assigned to Ademva
  • Tap employing deformation of matter
    Patent number: 5937684
    Abstract: This invention relates to a tap employing deformation of matter, wherein it comprises a body which bears three rotating cylinders mounted idly and provided with annular threads each distant by the value of the pitch of the threading to be made. These three cylinders are regularly distributed and are inclined axially by an angle equal to the helix angle of the thread to be made.
    Type: Grant
    Filed: September 24, 1997
    Date of Patent: August 17, 1999
    Assignee: Ademva
    Inventor: Jean-Fran.cedilla.ois Long