Patents by Inventor John H. Isenhour, Jr.

John H. Isenhour, Jr. 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: 4342719
    Abstract: Method for making extruded bricks having a textured handmade appearing face designed to form on outer building wall surface, comprising the steps of feeding a column of brick-forming clay mix into a progressively narrowing inlet funnel portion of a brick extruding die, progressively constricting the clay mix column while feeding the same from said inlet funnel portion through a die throat section of the extruding die of horizontally elongated rectangular cross-section defined by downstream converging upper, lower and side boundary surfaces to shape the clay mix column to a rectangular cross-section whose width dimension perpendicular to said face slightly exceeds the desired ultimate brick width, disrupting the clay column in said die throat section at a subsurface location space near and below the uppermost boundary surface of the die throat section along a plane substantially spanning the transverse extent of the die throat section by pressurized downsteam-directed liquid jets internally disrupting the clay
    Type: Grant
    Filed: May 13, 1981
    Date of Patent: August 3, 1982
    Assignee: Isenhour Brick & Tile Co., Inc.
    Inventors: William A. Cruse, John H. Isenhour, Jr.
  • Patent number: 4304541
    Abstract: Apparatus for making extruded bricks having a textured handmade appearing face designed to form the outer building wall surface, comprising a brick extruding die including a progressively narrowing inlet funnel portion having a downstream end and a constricted neck portion forming a material shaping die throat to receive a column of brick forming clay mix and shape the clay mix column to a rectangular cross-section whose width dimension perpendicular to said face slightly exceeds the desired brick width. A subsurface disrupting elongated thin bridge member transversely spans the die throat and is supplied with liquid under pressure to produce downstream directed liquid jets internally disrupting the clay mix column in the die throat immediately below the upper boundry surface thereof along a substantially horizontal disruption plane.
    Type: Grant
    Filed: June 23, 1980
    Date of Patent: December 8, 1981
    Assignee: Isenhour Brick & Tile Company, Inc.
    Inventors: William A. Cruse, John H. Isenhour, Jr.