Patents by Inventor Donald J. Zigman

Donald J. Zigman 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: 4669615
    Abstract: A hanger for suspending a pair of footwear in an inverted position, each one of said pair having a heel, a sole, and an upper is disclosed. The hanger has a pair of clamps made of wire, each of the clamps being for each one of the pair of footwear. Each clamp has a torsion spring coil at one end wherein front and rear ends of the coil extend downwardly from the coil to define respective first and second vertical legs. Each vertical leg is formed inwardly toward the other leg at about the same distance from the coil to define respective first and second horizontal legs in side-to-side contact with one another. The vertical legs cross one another laterally so that the first horizontal leg is behind the second horizontal leg. The horizontal legs are formed 180.degree. to define opposed gripper ends for clamping the heel of the footwear between them and each gripper end is in a plane which is perpendicular to the plane defined by the vertical and horizontal legs with which the gripper end is integral.
    Type: Grant
    Filed: March 13, 1986
    Date of Patent: June 2, 1987
    Inventor: Donald J. Zigman
  • Patent number: 4640199
    Abstract: A computer terminal work station assembly that includes a mobile mounting stand for a video display terminal (VDT), a keyboard, disc drive, printer paper and printer holding elements. The stand has two up-right joining members arranged so a work surface with the VDT immediately to the rear of the keyboard tilts away so that the screen of the VDT tilts from an angle of 90 degrees with reference to the work surface to 0 degrees with reference to the work surface. A printer paper support surface and printer support surface are located above and forward of the VDT to hold printer paper and a printer and to shield the VDT screen from any overhead light and other room reflections. A shelf is positioned below and diagonal to the work surface to hold the disc drive and provide ballast for the assembly.
    Type: Grant
    Filed: March 15, 1985
    Date of Patent: February 3, 1987
    Inventor: Donald J. Zigman
  • Patent number: 4576290
    Abstract: An improved apparatus to grasp, grip, securely hold and hang footwear in an inverted position. It consists of a hook, a yoke (in one embodiment) and an attached torsion spring or springs configured to produce a pair of grippers that grasp the heel or sole of footwear.
    Type: Grant
    Filed: February 10, 1984
    Date of Patent: March 18, 1986
    Inventor: Donald J. Zigman