Patents by Inventor Hadi Darejeh

Hadi Darejeh 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).

  • Publication number: 20170299081
    Abstract: Systems (100) and methods (300, 500) for controlling an electromechanical valve element (116). The methods involve: building up a magnetic flux through a valve (206) of the electromechanical valve element by supplying a PWM signal to an electromechanically inductive coil (202) of the electromechanical valve element at a power level lower than a power level needed to actuate the valve. When the valve needs to be opened, an amplitude of the PWM signal is increased such that the power provided to the electromechanically inductive coil rises to a power level sufficient to actuate the valve. Notably, the valve opens when a power cycling time of the PWM signal increases beyond a minimum power required to open the valve.
    Type: Application
    Filed: November 25, 2014
    Publication date: October 19, 2017
    Inventors: Jon D. Swanson, Hadi Darejeh
  • Patent number: D383183
    Type: Grant
    Filed: July 28, 1995
    Date of Patent: September 2, 1997
    Inventors: Hadi Darejeh, Joel R. McManus