Patents by Inventor Thomas D. Ruch

Thomas D. Ruch 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: 8613835
    Abstract: A method for improving the print quality of paper, a process for preparing such paper and the paper produced thereby are disclosed. The method involves applying to the paper an aqueous solution comprising 0.15 to 6 weight percent calcium in the form of its hydroxide. The supersaturated solution of calcium hydroxide can be obtained from reverse osmosis of milk of lime. The paper produced by the method disclosed exhibits a surface concentration of calcium greater than 3 mg/m2 and less than 360 mg/m2 and at the same time less than 20% of a halide, nitrate, sulfate, carbonate, acetate or formate counter ion.
    Type: Grant
    Filed: October 23, 2012
    Date of Patent: December 24, 2013
    Assignee: Finch Paper LLC.
    Inventors: Peter J. Veverka, Thomas D. Ruch
  • Publication number: 20130292078
    Abstract: A method for improving the print quality of paper, a process for preparing such paper and the paper produced thereby are disclosed. The method involves applying to the paper an aqueous solution comprising 0.15 to 6 weight percent calcium in the form of its hydroxide. The supersaturated solution of calcium hydroxide can be obtained from reverse osmosis of milk of lime. The paper produced by the method disclosed exhibits a surface concentration of calcium greater than 3 mg/m2 and less than 360 mg/m2 and at the same time less than 20% of a halide, nitrate, sulfate, carbonate, acetate or formate counter ion.
    Type: Application
    Filed: October 23, 2012
    Publication date: November 7, 2013
    Applicant: FINCH PAPER LLC
    Inventors: Peter J. VEVERKA, Thomas D. RUCH
  • Patent number: 8486226
    Abstract: A paper sheet is providing having a basis weight of 50 to 80 g/m2, and having a top surface and a bottom surface, said paper sheet comprising 10%-80% by weight of hardwood kraft pulp; and 10%-70% by weight of sulfite pulp; wherein the paper sheet has an MD/CD TSI ratio of 1.25 to 2.15, and a fiber hygroexpansion stress transfer parameter (?) of less than 0.1.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: July 16, 2013
    Assignee: Finch Paper LLC.
    Inventors: Peter J. Veverka, Thomas D. Ruch
  • Patent number: 8454797
    Abstract: A method for improving the print quality of paper, a process for preparing such paper and the paper produced thereby are disclosed. The method involves applying to the paper an aqueous solution comprising 0.15 to 6 weight percent calcium in the form of its hydroxide. The supersaturated solution of calcium hydroxide can be obtained from reverse osmosis of milk of lime. The paper produced by the method disclosed exhibits a surface concentration of calcium greater than 3 mg/m2 and less than 360 mg/m2 and at the same time less than 20% of a halide, nitrate, sulfate, carbonate, acetate or formate counter ion.
    Type: Grant
    Filed: July 18, 2012
    Date of Patent: June 4, 2013
    Assignee: Finch Paper LLC.
    Inventors: Peter J. Veverka, Thomas D. Ruch
  • Patent number: 6387213
    Abstract: A printing paper is provided having the appearance of uncoated paper and improved printability properties approaching those of coated papers. Also provided are a surface treatment formulation having a variable viscosity and a method for producing a printing paper having the appearance of uncoated paper and the improved printability properties approaching those of coated papers.
    Type: Grant
    Filed: August 25, 1999
    Date of Patent: May 14, 2002
    Assignee: Mohawk Paper Mills, Inc.
    Inventor: Thomas D. Ruch
  • Patent number: 6077392
    Abstract: A printing paper is provided having the appearance of uncoated paper and improved printability properties approaching those of coated papers. Also provided are a surface treatment formulation having a variable viscosity and a method for producing a printing paper having the appearance of uncoated paper and improved printability properties approaching those of coated papers.
    Type: Grant
    Filed: November 3, 1997
    Date of Patent: June 20, 2000
    Assignee: Mohawk Paper Mills, Inc.
    Inventor: Thomas D. Ruch
  • Patent number: 6074528
    Abstract: A printing paper is provided having the appearance of uncoated paper and improved printability properties approaching those of coated papers. Also provided are a surface treatment formulation having a variable viscosity and a method for producing a printing paper having the appearance of uncoated paper and improved printability properties approaching those of coated papers.
    Type: Grant
    Filed: November 3, 1997
    Date of Patent: June 13, 2000
    Assignee: Mohawk Paper Mills, Inc.
    Inventor: Thomas D. Ruch
  • Patent number: 5902453
    Abstract: A printing paper is provided having the appearance of uncoated paper and improved printability properties approaching those of coated papers. Also provided are a surface treatment formulation having a variable viscosity and a method for producing a printing paper having the appearance of uncoated paper and improved printability properties approaching those of coated papers.
    Type: Grant
    Filed: September 30, 1996
    Date of Patent: May 11, 1999
    Assignee: Mohawk Paper Mills, Inc.
    Inventor: Thomas D. Ruch