Patents by Inventor Roman Oren Smith

Roman Oren Smith 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).

  • Curtain control system for poultry houses
    Patent number: 3973173
    Abstract: The side curtains of a poultry house are automatically opened upon a power failure in the electrical circuit of the ventilating system. An electrical monitoring circuit activated responsive to such power failure, releases a winch which normally maintains the curtains in a closed position, causing them to drop to an open position. The electrical monitoring system includes a time delay relay which is activated upon the power failure to release a normally latched mechanism. A latching cable is thus released, freeing the winch.
    Type: Grant
    Filed: February 5, 1975
    Date of Patent: August 3, 1976
    Inventor: Roman Oren Smith