Patents by Inventor Hendrik A. Kroon

Hendrik A. Kroon 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).

  • Pressure regulator
    Patent number: 6789559
    Abstract: A fluid pressure regulator is provided having a housing with an inlet and outlet for fluid, a valve located movably inside the housing and provided with a fluid transport member to allow passage of fluid from the inlet to the outlet. The regulator also has a pressure setting member and a space defined by one end of the valve and an end wall of the housing. The valve is moveable relative to the housing in response to a change in pressure within the space between a first position which at least partially aligns the fluid transport member with each of the inlet and the outlet and a second position in which there is no alignment of the fluid transport member with at least one of the inlet and the outlet. A passage is provided in open communication with the space and one of the inlet, the outlet, and the transport member. Methods of using the pressure regulator are also provided.
    Type: Grant
    Filed: June 21, 2002
    Date of Patent: September 14, 2004
    Assignee: Avantium International B.V.
    Inventors: Peter John van den Brink, Johannes Petrus de Jonge, Klaas Hendrik Kroon
  • Pressure regulator
    Publication number: 20030015239
    Abstract: A fluid pressure regulator is provided having a housing with an inlet and outlet for fluid, a valve located movably inside the housing and provided with a fluid transport member to allow passage of fluid from the inlet to the outlet. The regulator also has a pressure setting member and a space defined by one end of the valve and an end wall of the housing. The valve is moveable relative to the housing in response to a change in pressure within the space between a first position which at least partially aligns the fluid transport member with each of the inlet and the outlet and a second position in which there is no alignment of the fluid transport member with at least one of the inlet and the outlet. A passage is provided in open communication with the space and one of the inlet, the outlet, and the transport member. Methods of using the pressure regulator are also provided.
    Type: Application
    Filed: June 21, 2002
    Publication date: January 23, 2003
    Applicant: Avantium International B.V.
    Inventors: Peter John van den Brink, Johannes Petrus de Jonge, Klaas Hendrik Kroon
  • Method of purifying soil polluted by oil
    Patent number: 4415368
    Abstract: A method of purifying hydrocarbon polluted soil. The polluted soil, mixed with water and air, is sucked into a conduit. Meanwhile, water under high pressure is ejected from a jet pipe as a substantially conical water curtain. The sucked-in soil is then passed through the water curtain, which removes the pollutants, and the thereby-purified soil-water mixture is ejected.
    Type: Grant
    Filed: July 30, 1981
    Date of Patent: November 15, 1983
    Assignee: H. A. Kroon B.V.
    Inventor: Hendrik A. Kroon