Patents by Inventor Wallace Raymond Ambrose

Wallace Raymond Ambrose 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).

  • Tilting hood ventilator
    Patent number: 6500061
    Abstract: A roof ventilator comprises a duct 1 having a symmetrical hood 3 supported at its apex 4 by bearing 10. In the absence of wind, hood 3 is spaced from the upper end 2 of duct 1 with its depending skirt 6 surrounding upper end 2 However, wind from any direction causes the hood to tilt so that skirt 6 is lowered on the windward side thus increasing the ventilation rate and thus positioning hood 3 to deflect wind and wind-borne material from the ventilator opening.
    Type: Grant
    Filed: April 24, 2002
    Date of Patent: December 31, 2002
    Inventor: Wallace Raymond Ambrose