Patents by Inventor Christian SCHRUNNER

Christian SCHRUNNER 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).

  • WEAR PROTECTION CAP AND A BIT HOLDER ARRANGEMENT
    Publication number: 20250052155
    Abstract: A wear resistant cap securable to a surface of a bit holder is provided. The wear resistant cap includes a top panel and a side panel. The top panel has a peripheral section enclosing an opening. The forward extension of the top panel, or together with an extension of a side wall at the front, is larger than the rearward extension the top panel. A bit holder arrangement is also provided. The bit holder arrangement includes a bit holder and a wear resistant cap releasably attached to the upper surface of the bit holder.
    Type: Application
    Filed: December 16, 2022
    Publication date: February 13, 2025
    Inventors: Ralf GRIEF, Christian SCHRUNNER
  • Fluid control valve
    Patent number: 9874291
    Abstract: A cartridge valve is arranged to control a flow of a fluid within a fluid supply network of a cutting machine such as mining or drilling apparatus. The valve includes a main body that defines an internal chamber to accommodate a reciprocating piston and plunger operative to open and close the valve by axial sliding movement. An intermediate region of the chamber provides a fluid tight partition between a working fluid network and a supply fluid network.
    Type: Grant
    Filed: January 26, 2015
    Date of Patent: January 23, 2018
    Assignee: SANDVIK INTELLECTUAL PROPERTY AB
    Inventors: Christian Schrunner, Markus Wenegger, Kurt Schaffer
  • FLUID CONTROL VALVE
    Publication number: 20160341329
    Abstract: A cartridge valve is arranged to control a flow of a fluid within a fluid supply network of a cutting machine such as mining or drilling apparatus. The valve includes a main body that defines an internal chamber to accommodate a reciprocating piston and plunger operative to open and close the valve by axial sliding movement. An intermediate region of the chamber provides a fluid tight partition between a working fluid network and a supply fluid network.
    Type: Application
    Filed: January 26, 2015
    Publication date: November 24, 2016
    Inventors: Christian SCHRUNNER, Markus WENEGGER, Kurt SCHAFFER