Patents by Inventor David Barnoin

David Barnoin 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).

  • Solenoid valve for regulating the flow of fluids in circuits, with special application to gas circuits
    Patent number: 5937884
    Abstract: A solenoid operated valve of the type intended to be operated with a constant frequency variable duty cycle electrical pulse signal. The valving member/armature has an elastomeric cap provided on one end which functions to close one face on a valve seat when the solenoid is de-energized and the opposite face functions to act as a limit stop for valving member movement in the opposite direction when the solenoid is energized.
    Type: Grant
    Filed: January 31, 1997
    Date of Patent: August 17, 1999
    Assignee: Ranco of Delaware
    Inventors: David Barnoin, Jacques Cutaya