Patents by Inventor Louis Paul Schaefer

Louis Paul Schaefer 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: 10214618
    Abstract: A low density coring material is described. In one embodiment, the low density coring material consists essentially of: about 40 to about 80 wt % resin; 0 to about 50 wt % monomer; 0 to about 5 wt % dispersion aid; 0 to about 5 wt % accelerator; about 3 to about 7 wt % microspheres; and about 1 to about 5 wt % catalyst; wherein a density of the cured coring material is less than about 5.0 lbs/gal. Composites made using the low density coring material and methods of making composites are also described.
    Type: Grant
    Filed: November 11, 2016
    Date of Patent: February 26, 2019
    Assignee: Illinois Tool Works Inc.
    Inventors: Robert Mark Adams, Randall Lake, Louis Paul Schaefer, Helena Twardowska, Brian Kruchten
  • Patent number: 10112323
    Abstract: Tooling packages for mold building structures, mold structures, and methods of making mold structures are described.
    Type: Grant
    Filed: April 11, 2012
    Date of Patent: October 30, 2018
    Assignee: ILLINOIS TOOL WORKS, INC.
    Inventors: Randall Lake, Robert Mark Adams, Brian Michael Kruchten, John Pfaff, Louis Paul Schaefer, Helena Twardowska
  • Publication number: 20170058084
    Abstract: A low density coring material is described. In one embodiment, the low density coring material consists essentially of: about 40 to about 80 wt % resin; 0 to about 50 wt % monomer; 0 to about 5 wt % dispersion aid; 0 to about 5 wt % accelerator; about 3 to about 7 wt % microspheres; and about 1 to about 5 wt % catalyst; wherein a density of the cured coring material is less than about 5.0 lbs/gal. Composites made using the low density coring material and methods of making composites are also described.
    Type: Application
    Filed: November 11, 2016
    Publication date: March 2, 2017
    Inventors: Robert Mark Adams, Randall Lake, Louis Paul Schaefer, Helena Twardowska, Brian Kruchten
  • Patent number: 9511563
    Abstract: A low density coring material is described. In one embodiment, the low density coring material consists essentially of: about 40 to about 80 wt % resin; 0 to about 50 wt % monomer; 0 to about 5 wt % dispersion aid; 0 to about 5 wt % accelerator; about 3 to about 7 wt % microspheres; and about 1 to about 5 wt % catalyst; wherein a density of the cured coring material is less than about 5.0 lbs/gal. Composites made using the low density coring material and methods of making composites are also described.
    Type: Grant
    Filed: August 10, 2010
    Date of Patent: December 6, 2016
    Assignee: ILLINOIS TOOL WORKS INC.
    Inventors: Robert Mark Adams, Randall Lake, Louis Paul Schaefer, Helena Twardowska, Brian Kruchten
  • Publication number: 20120295019
    Abstract: Tooling packages for mold building structures, mold structures, and methods of making mold structures are described.
    Type: Application
    Filed: April 11, 2012
    Publication date: November 22, 2012
    Applicant: Illinois Tool Works Inc
    Inventors: Randall Lake, Robert Mark Adams, Brian Michael Kruchten, John Pfaff, Louis Paul Schaefer, Helena Twardowska
  • Publication number: 20120135147
    Abstract: A high build tooling compound suited for plug building by extrusion process with conventional FRP dispensing equipment is described. The material is based on urethane hybrid and unsaturated polyester resin mixture with additives to provide low shrinkage and low exotherm. The formulation allows building a desired part thicknesses from 0.5 to 3 inches in one application. Methods of making a plug are also described.
    Type: Application
    Filed: November 22, 2011
    Publication date: May 31, 2012
    Applicant: Illinois Tool Works Inc.
    Inventors: Helena Twardowska, Cameron Giffen, Louis Paul Schaefer, Randall Lake
  • Publication number: 20120040174
    Abstract: A low density coring material is described. In one embodiment, the low density coring material consists essentially of: about 40 to about 80 wt % resin, the resin consisting essentially of vinyl ester resin or a combination of vinyl ester resin and polyester resin; 0 to about 50 wt % monomer; 0 to about 5 wt % dispersion aid; 0 to about 5 wt % accelerator, or inhibitor, or both; about 3 to about 10 wt % microspheres; 0 to about 20 wt % fiber; 0 to about 20 wt % filler; and about 1 to about 5 wt % catalyst; wherein a density of the cured coring material is less than about 5.0 lbs/gal. Composites made using the low density coring material and methods of making composites are also described.
    Type: Application
    Filed: September 27, 2010
    Publication date: February 16, 2012
    Inventors: Robert Mark Adams, Randall Lake, Louis Paul Schaefer, Helena Twardowska, Brian Kruchten
  • Publication number: 20120040173
    Abstract: A low density coring material is described. In one embodiment, the low density coring material consists essentially of: about 40 to about 80 wt % resin; 0 to about 50 wt % monomer; 0 to about 5 wt % dispersion aid; 0 to about 5 wt % accelerator; about 3 to about 7 wt % microspheres; and about 1 to about 5 wt % catalyst; wherein a density of the cured coring material is less than about 5.0 lbs/gal. Composites made using the low density coring material and methods of making composites are also described.
    Type: Application
    Filed: August 10, 2010
    Publication date: February 16, 2012
    Applicant: ILLINOIS TOOL WORKS INC.
    Inventors: Robert Mark Adams, Randall Lake, Louis Paul Schaefer, Helena Twardowska, Brian Kruchten
  • Publication number: 20030057594
    Abstract: A method of making a sheet of building material. The method includes: providing a molding surface; providing a composition comprising vinyl ester resin in combination with polyester resin, an optional monomer, a thickening agent, an accelerator, and a filler; depositing the composition on the molding surface; and curing the composition to form the sheet of building material. Another aspect of the invention is the sheet of building material. Another aspect of the invention is a method of making a laminate.
    Type: Application
    Filed: October 2, 2002
    Publication date: March 27, 2003
    Inventors: Robert Phillip Anderson, Kimberly Ann Whitley, Louis Paul Schaefer
  • Publication number: 20020166495
    Abstract: Methods, compositions and boat hulls are disclosed using and forming a wood replacement surface. The wood replacement surface is used as a replacement or substitute for wood surfaces. The wood replacement surface of the present invention has improved characteristics, such as strength and water resistance, compared to conventional wood surfaces. The wood replacement surface is resistant to environmental conditions such as water, heat and sunlight. The wood replacement surface is easier to apply than conventional wood surfaces.
    Type: Application
    Filed: March 5, 2001
    Publication date: November 14, 2002
    Inventors: Robert Phillip Anderson, Kimberly Ann Whitley, Louis Paul Schaefer
  • Patent number: 6463871
    Abstract: Methods, compositions and boat hulls are disclosed using and forming a wood replacement surface. The wood replacement surface is used as a replacement or substitute for wood surfaces. The wood replacement surface of the present invention has improved characteristics, such as strength and water resistance, compared to conventional wood surfaces. The wood replacement surface is resistant to environmental conditions such as water, heat and sunlight. The wood replacement surface is easier to apply than conventional wood surfaces.
    Type: Grant
    Filed: March 5, 2001
    Date of Patent: October 15, 2002
    Assignee: Illinois Tool Works Inc.
    Inventors: Robert Phillip Anderson, Kimberly Ann Whitley, Louis Paul Schaefer
  • Patent number: 6265027
    Abstract: A method for treating wood surfaces.
    Type: Grant
    Filed: May 15, 2000
    Date of Patent: July 24, 2001
    Assignee: Illinois Tool Works, Inc.
    Inventors: Robert William Johnston, Kimberly Ann Whitley, Louis Paul Schaefer