Patents by Inventor Daniel Welker

Daniel Welker 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).

  • Publication number: 20250251061
    Abstract: A district heating pipe section comprises a central metal tube, a corrosion protection layer, and a thermal insulation layer protected by a jacket layer. The district heating pipe section further has a distal end that is the front end when a district heating pipe is installed, an outer casing layer, and a force transmitting structure comprising a metal fixed to a central metal tube's distal end. The thermal insulation layer is arranged radially between the central metal tube and the outer casing layer. An outer diameter of the force transmitting structure matches or exceeds an outer diameter of the outer casing layer. The force transmitting structure transfers forces acting on the district heating pipe section's distal end in a longitudinal direction of the district heating pipe section to the central metal tube and the outer casing layer, avoiding shear and compressive forces on the thermal insulation layer.
    Type: Application
    Filed: April 14, 2023
    Publication date: August 7, 2025
    Inventor: Daniel WELKER
  • Patent number: 11867343
    Abstract: The invention relates to a pipe having a thermoplastic casing surface and a glass-fibre-reinforced thermo-setting coating surrounding the thermoplastic casing surface. The thermo-setting coating is formed from multiple layers of glass-fibre matting or glass-fibre fabric, or a combination of the two, wherein the layers are applied to the thermoplastic casing surface in a wet-on-wet method using a vinylester, polyester or epoxy resin. According to the invention, an outer layer of the thermo-setting coating is formed from cross-wound glass-fibre fleece or glass-fibre fabric.
    Type: Grant
    Filed: October 17, 2022
    Date of Patent: January 9, 2024
    Assignee: TDC INTERNATIONAL AG
    Inventor: Daniel Welker
  • Publication number: 20230052636
    Abstract: The invention relates to a pipe having a thermoplastic casing surface and a glass-fibre-reinforced thermo-setting coating surrounding the thermoplastic casing surface. The thermo-setting coating is formed from multiple layers of glass-fibre matting or glass-fibre fabric, or a combination of the two, wherein the layers are applied to the thermoplastic casing surface in a wet-on-wet method using a vinylester, polyester or epoxy resin. According to the invention, an outer layer of the thermo-setting coating is formed from cross-wound glass-fibre fleece or glass-fibre fabric.
    Type: Application
    Filed: October 17, 2022
    Publication date: February 16, 2023
    Applicant: TDC INTERNATIONAL AG
    Inventor: Daniel Welker
  • Patent number: 11473716
    Abstract: The invention relates to a pipe having a thermoplastic casing surface a glass-fibre-reinforced thermo-setting coating surrounding the thermoplastic casing surface. The thermo-setting coating is formed from multiple layers of glass-fibre matting or glass-fibre fabric, or a combination of the two, wherein the layers are applied to the thermoplastic casing surface a wet-on-wet method using a vinylester, polyester or epoxy resin. According to the invention, an outer layer of the thermo-setting coating is formed from cross-wound glass-fibre fleece or glass-fibre fabric.
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: October 18, 2022
    Assignee: TDC INTERNATIONAL AG
    Inventor: Daniel Welker
  • Publication number: 20210262605
    Abstract: The invention relates to a pipe having a thermoplastic casing surface a glass-fibre-reinforced thermo-setting coating surrounding the thermoplastic casing surface. The thermo-setting coating is formed from multiple layers of glass-fibre matting or glass-fibre fabric, or a combination of the two, wherein the layers are applied to the thermoplastic casing surface a wet-on-wet method using a vinylester, polyester or epoxy resin. According to the invention, an outer layer of the thermo-setting coating is formed from cross-wound glass-fibre fleece or glass-fibre fabric.
    Type: Application
    Filed: June 28, 2019
    Publication date: August 26, 2021
    Inventor: Daniel WELKER
  • Publication number: 20080173244
    Abstract: An animal feeder apparatus is provided that includes a stand, an animal feeder assembly, an animal feeder suspension assembly, and a vehicle-mounted winch assembly. The animal feeder apparatus has a configuration enabling the animal feeder assembly to be raised and lowered by the vehicle-mounted winch assembly.
    Type: Application
    Filed: January 23, 2007
    Publication date: July 24, 2008
    Inventors: Daniel Welker, Kyle Welker, Brian H. Welker
  • Publication number: 20060080236
    Abstract: According to one embodiment of the invention, a method of debt recovery is provided. The method includes providing a device to a consumer owing a debt to a creditor. The device has a utility that becomes available to the consumer after being activated by the creditor. The method also includes indicating to the consumer that the utility of the device will be activated if the consumer contacts the creditor.
    Type: Application
    Filed: September 7, 2004
    Publication date: April 13, 2006
    Inventors: Daniel Welker, Anthony Reynolds, John Magnuson, James Haworth, Sow Kobayashi, Oren Knishinsky