Patents by Inventor David W. Melnick

David W. Melnick 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: 5664382
    Abstract: A foam block wall system is formed from a plurality of interconnected individual foam blocks. The individual foam blocks have a plurality of vertically oriented, quadrilateral core members spaced evenly within the block. The spaces between the core members define a plurality of vertically oriented chambers which receive liquid concrete.A plurality of connectors serve to connect the individual blocks into an integrated structure. A generally U-shaped bracket is secured to the floor or other supporting structure to provide support for the bottom layer of blocks. A generally H-shaped connector rests between successive vertical layers to provide both vertical and lateral stability. Generally U-shaped connectors connect adjacent blocks to provide vertical and lateral stability. A cabling system secures the individual blocks to the floor, also providing vertical and lateral support.
    Type: Grant
    Filed: February 5, 1996
    Date of Patent: September 9, 1997
    Inventors: David W. Melnick, Robert T. Barnet
  • Patent number: 5488806
    Abstract: A foam block wall system is formed from a plurality of interconnected individual foam blocks. The individual foam blocks have a plurality of vertically oriented, quadrilateral core members spaced evenly within the block. The spaces between the core members define a plurality of vertically oriented chambers which receive liquid concrete.A plurality of connectors serve to connect the individual blocks into an integrated structure. A generally U-shaped bracket is secured to the floor or other supporting structure to provide support for the bottom layer of blocks. A generally H-shaped connector rests between successive vertical layers to provide both vertical and lateral stability. Generally U-shaped connectors connect adjacent blocks to provide vertical and lateral stability. A cabling system secures the individual blocks to the floor, also providing vertical and lateral support.
    Type: Grant
    Filed: September 9, 1993
    Date of Patent: February 6, 1996
    Inventors: David W. Melnick, Robert T. Barnet
  • Patent number: 4787852
    Abstract: A kit for producng symbols of unpredictable colors on paper including a plurality of individual sheets of paper each having a coating therein containing a reactant composition. A writing instrument is included in the kit to be usable with the various paper substrates supplied therein for writing thereon in various colors depending upon which reactant is contained within the coating of a particular piece of paper. The different paper substrates each will include a reactant chosen from one of several reactants used in the kit. Each of these individual reactants when contacted by the writing instrument will react with an agent in the fluid of the writing instrument to display a coloration on the paper substrate which is different from the reacted coloration resulting from usage with a different reactant. Each paper substrate has a base coloration which is in no way indicative of the particular reactant contained in the coating thereon.
    Type: Grant
    Filed: April 24, 1987
    Date of Patent: November 29, 1988
    Inventor: David W. Melnick
  • Patent number: D337786
    Type: Grant
    Filed: January 6, 1992
    Date of Patent: July 27, 1993
    Assignee: Pentech International Inc.
    Inventor: David W. Melnick