Patents by Inventor Daniel Heiling

Daniel Heiling 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 arrangement and method of directing fluid flow
    Patent number: 6749173
    Abstract: A valve arrangement that controls fluid flow of a working fluid in a fluid system. The valve arrangement including a valve body having first, second, and third pressure chambers functioning under pressure of an operating fluid. The operating fluid is independent of the working fluid. The valve arrangement further including a solenoid valve arranged with the valve body to operably provide fluid communication between the first pressure chamber and the second and third pressure chambers.
    Type: Grant
    Filed: September 27, 2002
    Date of Patent: June 15, 2004
    Assignee: The Hartfiel Company
    Inventor: Daniel Heiling
  • Valve arrangement and method of directing fluid flow
    Publication number: 20040061082
    Abstract: A valve arrangement that controls fluid flow of a working fluid in a fluid system. The valve arrangement including a valve body having first, second, and third pressure chambers functioning under pressure of an operating fluid. The operating fluid is independent of the working fluid. The valve arrangement further including a solenoid valve arranged with the valve body to operably provide fluid communication between the first pressure chamber and the second and third pressure chambers.
    Type: Application
    Filed: September 27, 2002
    Publication date: April 1, 2004
    Inventor: Daniel Heiling