Patents by Inventor Harry R. Cross

Harry R. Cross 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).

  • Patent number: 4867376
    Abstract: An air control device, having a panel which opens and closes in response to changes in environmental conditions in a building, preferably is sized to replace a ceiling tile in a conventional drop ceiling. The air control device may be responsive, for example, to a change in temperature of the air space above a conventional drop ceiling, raising the panel when the temperature drops to near freezing, allowing air from below the drop ceiling to commingle with air above the drop ceiling. A support in rolling contact with the underside of the panel maintains the panel open, the support including a fusible fire link which fails or fractures in the event of a fire, thus allowing the panel to fall, insuring that the fire rating of the ceiling is not compromised.
    Type: Grant
    Filed: October 17, 1986
    Date of Patent: September 19, 1989
    Inventors: Henry M. Arceneaux, Harry R. Cross