Patents Represented by Attorney Howard Greenwald
  • Patent number: 4862613
    Abstract: An edge-lighted neon sign, which is comprised of a one-piece slab of light-transmitting material having spaced, substantially parallel faces and comprising a front parallel face and a back parallel face, wherein integrally connected to the back parallel face are at least two horizontally-extending light-transmitting channels which are comprised of transparent, light-transmitting material.A first horizontally-extending channel is disposed on an edge of said back parallel face of the slab of light-transmitting material and a second horizontally-extending channel is disposed on an edge of the back parallel face of the slab of light-transmitting material which is opposite the edge on which the first horizontally-extending channel is disposed.The sign of this invention is also comprised of at least two neon lamps, wherein at least one of the lamps is so disposed so that it is substantially contiguous with an edge of the second horizontally-extending channel.
    Type: Grant
    Filed: December 21, 1987
    Date of Patent: September 5, 1989
    Inventor: Jacob Eyngorn
  • Patent number: 4862682
    Abstract: A blade assembly for cutting herbaceous terrestrial vegetation at a cutting speed of from about 1,000 to about 10,000 revolutions per minute, wherein said blade assembly is comprised of a U-shaped blade which has a Rockwell C hardness of from about 37 to 40, a flare resistance of less than about 15 degrees, and a bending resistance of less than about 5 degrees, and wherein said U-shaped blade is an integral, symmetrical member comprised a vertically-extending left cutting edge, a vertically extending right cutting edge, and a rotating support member connected to said left and right cutting edges, wherein:(a) said left cutting edge, said right cutting edge, and said rotating support member are integrally formed into a substantial U-shaped structure,(b) each of said left cutting and right cutting edges forms an angle with said rotating support member of from about 90 to about 95 degrees,(c) said U-shaped blade is from about 2.0 to about 15.0 inches long, from about 1.0 to about 3.
    Type: Grant
    Filed: March 14, 1988
    Date of Patent: September 5, 1989
    Inventors: Thomas R. Wait, Joseph J. DeMino, Bren R. Smith
  • Patent number: 4848842
    Abstract: A portable, quick-release, height-adjustable bench is disclosed. This bench is comprised of a platform, a height-adjustable seat operatively connected to said platform, means for adjusting the height of said height-adjustable seat, a height-adjustable footrest slidably engageable with said platform, means for adjusting the height of said footrest, and means for maintaining said height-adjustable seat and said height-adjustable footrest in positions such that they are always substantially parallel to each other.
    Type: Grant
    Filed: August 16, 1988
    Date of Patent: July 18, 1989
    Inventor: Edward E. Stringham
  • Patent number: 4812427
    Abstract: A blended, stable ball clay/water slurry, wherein:1. the slurry comprises from about 58 to about 68 weight percent of ball clay, from about 42 to about 32 weight percent of water, from about 50 to about 650 parts per million (by dry weight of ball clay) of soluble sulfate ion, and from about 0.01 to about 1.0 percent of organic polyelectrolyte (weight of active ingredient by weight of dry ball clay) with a molecular weight of from about 1400 to about 6000;2. the slurry, when freshly made has a five-minute gel viscosity of from about 1,000 to about 10,000 centipoise, a ten-minute gel viscosity of from about 2,200 to about 12,000 centipoise, and a twenty-minute gel viscosity of from about 3,500 to about 14,000 centipoise.
    Type: Grant
    Filed: September 22, 1987
    Date of Patent: March 14, 1989
    Assignee: H. C. Spinks Clay Company Inc.
    Inventor: William Kohut
  • Patent number: 4812428
    Abstract: At least two different ball clay/water mixtures are blended together to produce a ball clay/water slurry, wherein:1. the slurry comprises from about 58 to about 68 weight percent of ball clay, from about 42 to about 32 weight percent of water, from about 50 to about 650 parts per million (by dry weight of ball clay) of soluble sulfate ion, and from about 0.01 to about 1.0 percent of organic polyelectrolyte (weight of active ingredient by weight of dry ball clay) with a molecular weight of from about 1400 to about 6000;2. the slurry, when freshly made has a five-minute gel viscosity of from about 1,000 to about 10,000 centipose, a ten-minute gel viscosity of from about 2,200 to about 12,000 centipoise, and a twenty-minute gel viscosity of from about 3,500 to about 14,000 centipoise.
    Type: Grant
    Filed: September 22, 1987
    Date of Patent: March 14, 1989
    Assignee: H. C. Spinks Clay Company Inc.
    Inventor: William Kohut