Patents Assigned to Inteco Establishment
  • Device for forming tube sockets
    Patent number: 3989439
    Abstract: A device for forming a tube of plastic material with a socket having an annular corrugation has a tube supporting core and a plurality of radially movable segments provided adjacently with contacting wedge surfaces, the segments in outwardly shifted position defining a circumferentially beaded portion for forming the annular corrugation on the supported tube.
    Type: Grant
    Filed: October 30, 1974
    Date of Patent: November 2, 1976
    Assignee: Inteco Establishment
    Inventor: Franz Schmitzberger