Patents by Inventor Christian NISSEN

Christian NISSEN 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).

  • VALVE
    Publication number: 20150267822
    Abstract: A valve includes a flexible tube in an enclosure which is filled with pressurized gas which collapses the tube and wherein a fluid, applied at either end of the tube, can open the tube if the pressure of the fluid is sufficiently high.
    Type: Application
    Filed: March 13, 2015
    Publication date: September 24, 2015
    Inventor: Christian NISSEN
  • ROCK BOLT
    Publication number: 20150233244
    Abstract: A rock bolt has a rectangular blade, which can pierce and shred a flexible housing, extending from cross-shaped mixing formations at one end of an elongate rod.
    Type: Application
    Filed: February 18, 2015
    Publication date: August 20, 2015
    Inventor: Christian NISSEN
  • PRESSURE REDUCTION DEVICE
    Publication number: 20150234392
    Abstract: A pressure reduction device wherein a high pressure fluid is applied to a small area piston which is coupled to a large area piston which acts inside a chamber to produce a low pressure fluid and wherein the small area piston is movable to control the flow of the high pressure fluid to the chamber.
    Type: Application
    Filed: February 18, 2015
    Publication date: August 20, 2015
    Inventor: Christian NISSEN
  • PROP
    Publication number: 20140050538
    Abstract: A prop which includes first and second telescopically engaged tubular members, wherein at least one member is internally pressurized with water and wherein yielding is controlled by means of a friction ring acting between opposing surfaces of the two members and by a release valve which controls the pressure of the water.
    Type: Application
    Filed: August 16, 2013
    Publication date: February 20, 2014
    Applicant: MINE SUPPORT PRODUCTS (PTY) LTD
    Inventor: Christian NISSEN