Patents by Inventor Patricia R. Kirchherr

Patricia R. Kirchherr 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: 4389442
    Abstract: A fabric (10), for a wall covering or the like, is provided which has a needled non-woven batt (16) of staple fibers (12), to a front surface or one face (18) of which a cloth or film of woven, knitted fabric or extruded film (22) is attached, as by needle punching fibers (12) from the batt, or the like. Groups of staple fibers are punched from the batt through the cloth or film (22) to produce a distinctive pattern of clustered loops (34) of non-woven fibers having a visual background of cloth or film (22). The back surface (20) of the non-woven batt may optionally be backed (40) as by fusing, latexing, or the like. A novel method of making a fabric is provided and comprises needling (15) the non-woven batt, attaching the cloth or film (22) to the batt, needling clustered loops (34,35) from the non-woven fibers of the batt through the cloth or film (22) to define a pattern of loops with the cloth or film ( 22) visible between the clustered loops, and optionally backing the non-woven batt.
    Type: Grant
    Filed: December 10, 1981
    Date of Patent: June 21, 1983
    Assignee: Ozite Corporation
    Inventors: Robert C. Pickens, Jr., Patricia R. Kirchherr, Reese R. Thomas
  • Patent number: 4342802
    Abstract: A floor covering is provided which has a woven fabric needle punched to a face surface of a non-woven batt of staple fibers. The woven fabric has either warps of polypropylene ribbons and fillings of continuous filaments, ribbon yarns, or spun staple fibers or vice versa. The needle punching forms a covering layer of fibers on the facing surface of the woven fabric. In one form of the invention, the needled batt and woven fabric is texturized from the batt side of the woven fabric which forms loops outwardly of the plane of the woven fabric which loops include fibers from the non-woven batt and varying amounts of filaments, ribbon yarns, or spun staple fibers from the woven fabric. A back is affixed to the batt as by fusing, latexing, foaming, needling, or the like. In another form of the invention, the needled batt and woven fabric are texturized from the woven fabric side of the batt which forms loops outwardly of the plane of the batt.
    Type: Grant
    Filed: January 2, 1981
    Date of Patent: August 3, 1982
    Assignee: Ozite Corporation
    Inventors: Robert C. Pickens, Jr., Patricia R. Kirchherr, Reese R. Thomas