Patents by Inventor Ernest Efstratis

Ernest Efstratis 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: 4944507
    Abstract: A glider especially for children is provided with a supporting frame having laterally spaced apart uprights. An elongated board between the uprights has a seat portion at each end. The board is suspended by a T-bar from the tops of the uprights for swinging movement in a vertical plane. An elastic member urges the board to a neutral, generally horizontal position.
    Type: Grant
    Filed: November 13, 1989
    Date of Patent: July 31, 1990
    Inventor: Ernest Efstratis
  • Patent number: 4519102
    Abstract: A garbage disposal guard comprising a sleeve having an upper cylindrical wall portion and a lower cylindrical base portion of smaller diameter than the upper wall portion and joined thereto by a shoulder portion. The sleeve is adapted to be installed in the drain of a sink equipped with a garbage grinder with its shoulder portion seated on a portion of the sink surrounding the drain, its base portion extending down into the drain and its upper wall portion projecting up above the drain. Slots are provided in the sleeve to permit an adequate flow of water. The slots are sufficiently narrow to prevent flatware and the like from washing down the drain and into the grinder. The sleeve may be longitudinally split to permit it to be circumferentially squeezed or compressed so that it will fit drains of different sizes.
    Type: Grant
    Filed: December 7, 1983
    Date of Patent: May 28, 1985
    Inventor: Ernest Efstratis
  • Patent number: 4481871
    Abstract: A portable air duct extension unit especially for use in a building heated or cooled by air and having a hot or cold air outlet. The unit comprises telescoping mounting and extension sections with magnets for mounting the unit. The sections may be formed by extrusion and are designed to maximize the flow of air without turbulence.
    Type: Grant
    Filed: July 29, 1982
    Date of Patent: November 13, 1984
    Inventor: Ernest Efstratis
  • Patent number: 4020753
    Abstract: A portable air duct extension for a building heated or cooled by air and having a hot or cold air outlet or register. The duct extension comprises an elongated tubular member composed of telescoping sections. One section has an inlet opening and the other section has an outlet opening. Means such as magnets are provided for removably mounting the tubular member so that its intake opening overlies the air outlet. The telescoping sections permit the tubular member to be adjusted as to length to vary the point of discharge through the outlet opening. Baffles are provided to control the discharge of air from the outlet opening.
    Type: Grant
    Filed: October 6, 1975
    Date of Patent: May 3, 1977
    Inventor: Ernest Efstratis
  • Patent number: D271900
    Type: Grant
    Filed: June 11, 1981
    Date of Patent: December 20, 1983
    Inventor: Ernest Efstratis