Patents by Inventor Joseph Hartt

Joseph Hartt 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: 5309336
    Abstract: A rechargeable flashlight for automotive use having a universal connector for drawing power from any type of cigarette lighter receptacle. The universal connector includes a ring-shaped portion which establishes a friction connection with the positive feed portions of the cigarette lighter receptacles, and a cylindrical portion for establishing a friction fit with the cylindrical inner housing of the receptacles to establish contact with the negative feed or ground. The rechargeable flashlight and the universal connector can be integral in a single body, the body housing a rechargeable battery, lens/lamp assembly and spare bulbs. A magnetic foot is hingedly attached to the flashlight body for permitting the flashlight to be mounted on any magnetically responsive material and providing a directable flashlight beam. Alternatively, the universal connector can be separate and provide current to any desired electrical appliance.
    Type: Grant
    Filed: February 6, 1991
    Date of Patent: May 3, 1994
    Assignee: Millennia Corporation
    Inventors: Joseph Hartt, Joseph E. Velazquez
  • Patent number: 4301981
    Abstract: An aircraft is provided with a wing in the form of an annulus having an airfoil shape in radial section, the wing being concentrically mounted on a vertical axle shaft which in turn is rotatably carried by a mounting on the fuselage. Rotation of the wing drives air centrifugally across the upper and lower surfaces to energize the boundary layer, enhance laminar flow, and produce lift. Vanes may be mounted on the inner portion of the surface to increase the flow and thus produce greater life. The vanes may be attached to a stabilizer ring which is eccentrically adjustable by a controlling mechanism to vary the extension of the vanes into and out of the wing at various points in the cource of rotation and thus vary the degree of lift produced. The wing may also be provided within its inner perimeter with airfoil lifting blades which produce additional lift, and the blades may be swung by a stabilizer ring to positions producing a desired thrust in a desired direction as the wing rotates.
    Type: Grant
    Filed: June 29, 1979
    Date of Patent: November 24, 1981
    Inventor: Joseph Hartt