Patents by Inventor Thomas WALDRAFF

Thomas WALDRAFF 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).

  • Variable weld spacing
    Patent number: 12697785
    Abstract: Half-shell for the receiving and concentric guidance of a plastic pipe in a butt welding machine, wherein the half-shell has a semi-circular shape with an internal diameter corresponding to the external diameter of the pipe to be received, at least one external diameter in order to be accurately received in a clamping unit of a butt welding machine, a front face, a rear face and a thickness extending axially between the front face and the rear face, wherein at least one spacing element is arranged on the front face and protrudes over the front face in the axial direction.
    Type: Grant
    Filed: July 31, 2024
    Date of Patent: August 4, 2026
    Assignee: Georg Fischer Rohrleitungssysteme AG
    Inventors: Edin Hasific, Mariano Gutierrez, Benedikt Engesser, Thomas Waldraff, Juergen Roesch
  • VARIABLE WELD SPACING
    Publication number: 20250042098
    Abstract: Half-shell for the receiving and concentric guidance of a plastic pipe in a butt welding machine, wherein the half-shell has a semi-circular shape with an internal diameter corresponding to the external diameter of the pipe to be received, at least one external diameter in order to be accurately received in a clamping unit of a butt welding machine, a front face, a rear face and a thickness extending axially between the front face and the rear face, wherein at least one spacing element is arranged on the front face and protrudes over the front face in the axial direction.
    Type: Application
    Filed: July 31, 2024
    Publication date: February 6, 2025
    Inventors: Edin HASIFIC, Mariano GUTIERREZ, Benedikt ENGESSER, Thomas WALDRAFF, Juergen ROESCH