Patents by Inventor Jan Cornelis Huygen

Jan Cornelis Huygen 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
    Patent number: 5771924
    Abstract: A safety valve having a valve body movable toward and from a valve seat with a spring bearing against a spring seat and pressing the valve body against the valve seat has a rotary knob on the housing having a portion engaging a boss on the valve body to slide the valve body away from the valve seat upon rotation of the knob.
    Type: Grant
    Filed: February 20, 1996
    Date of Patent: June 30, 1998
    Assignee: Flamco B.V.
    Inventor: Jan Cornelis Huygen