Patents by Inventor Jamshid Hamidi

Jamshid Hamidi 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).

  • Forced air ventilation system
    Patent number: 4942921
    Abstract: The variable air volume ventilating system includes a control device for driving a fan at continuously variable speeds for delivering air to the space for conditioning purposes. A controller monitors various conditioners of the space, to, in turn, cause the control device to drive the fan at different continuously varying speeds. A light conduit, such as a fiber optic link, interconnects the control device and the controller for supplying a control signal to the control device.
    Type: Grant
    Filed: January 29, 1988
    Date of Patent: July 24, 1990
    Assignee: Staefa Control Systems, Inc.
    Inventors: David L. Haessig, Jamshid Hamidi, Roger V. Hort