Patents by Inventor Harvey P. Block

Harvey P. Block 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: 4590694
    Abstract: A snow plow is provided comprising a steel member having a mold board at its lower end. A snow plow blade extends below the mold board. The snow plow blade comprises a sheet of lightweight material, preferably urethane. This sheet is resistant to corrosion from moisture and salt and to road abrasion. The sheet has a front surface and a back surface, each of which extends from the top of the sheet to the bottom of the sheet to define the thickness of the blade. The thickness is relatively constant. The bottom of the blade is defined by a relatively straight edge for better snow removal. A steel reinforcing bar is mounted in a groove in either the front or the back surface of the sheet. Bolt means mount the steel bar to the sheet and also to the plow.
    Type: Grant
    Filed: February 6, 1985
    Date of Patent: May 27, 1986
    Assignee: U.S. Highway Products, Inc.
    Inventor: Harvey P. Block
  • Patent number: 4586413
    Abstract: A sign making machine is provided comprising a frame and a power unit attached to the frame. A hydraulic cylinder is also attached to the frame and is hydraulically connected to the power unit. This hydraulic cylinder has a piston rod extending downwardly. A platen is mounted on the bottom of said piston rod and a die is mounted beneath said platen. Sheet material is mounted on rolls and passes beneath said die on a cutting surface on the bottom portion of the frame. The sheet material passes through a track means. Indicia on the die indicate a width quotient of a symbol to be cut. A drive unit advances the sheeting material by a distance equal to the width quotient of the symbol plus the width quotient of the next symbol to be cut plus the spacing between these symbols.
    Type: Grant
    Filed: February 6, 1985
    Date of Patent: May 6, 1986
    Assignee: U.S. Highway Products, Inc.
    Inventor: Harvey P. Block
  • Patent number: 4586414
    Abstract: A sign making machine is provided comprising a frame and a power unit attached to the frame. A hydraulic cylinder is also attached to the frame and is hydraulically connected to the power unit. This hydraulic cylinder has a piston rod extending downwardly. A platen is mounted on the bottom of said piston rod and a die is mounted beneath said platen. Sheeting material is mounted on rolls and passes beneath said die on a cutting surface on the bottom portion of the frame. The sheeting material passes through a track means. Pin means are provided on the die to mark said sheet material. Markings are provided on the frame so that the markings made by the pin means may be aligned with one of the markings on the frame to provide desired spacing between a symbol cut by said die means and the next symbol to be cut by the die means.
    Type: Grant
    Filed: September 17, 1984
    Date of Patent: May 6, 1986
    Assignee: U.S. Highway Products, Inc.
    Inventor: Harvey P. Block