Patents by Inventor Richard D. Harvey

Richard D. Harvey 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: 6835282
    Abstract: Disclosed is a process for preparing a paper web. The paper web is prepared from a low-grade furnish, which contains low-grade pulps, such as recycled pulp and/or groundwood pulp, and which, in one preferred embodiment, is a newsprint furnish. In accordance with the disclosed process, a pre-flocculated filler is added to the furnish prior to forming the paper web from the furnish. Filler will be retained in the web, and retention of undesired components of the furnish in the web will be reduced as compared with newsprint in which a filler is incorporated via conventional processes. Another embodiment contemplates the incorporation of a pre-flocculated coated broke slurry into a paper furnish prior to paper formation. The paper web formed via the process of the invention will have improved properties as a result of the incorporation of the pre-flocculated filler or treated broke into the web.
    Type: Grant
    Filed: January 4, 2002
    Date of Patent: December 28, 2004
    Assignee: Grain Processing Corporation
    Inventors: Richard D. Harvey, Stuart W. Mabee, James M. Crandall
  • Patent number: 6602389
    Abstract: Disclosed is a process for preparing a paper web. The paper web is prepared from a low-grade furnish, which contains low-grade pulps, such as recycled pulp and/or groundwood pulp, and which, in one preferred embodiment, is a newsprint furnish. In accordance with the disclosed process, a pre-flocculated filler is added to the furnish prior to forming the paper web from the furnish. Filler will be retained in the web, and retention of undesired components of the furnish in the web will be reduced as compared with newsprint in which a filler is incorporated via conventional processes. Another embodiment contemplates the incorporation of a pre-flocculated coated broke slurry into a paper furnish prior to paper formation. The paper web formed via the process of the invention will have improved properties as a result of the incorporation of the pre-flocculated filler or treated broke into the web.
    Type: Grant
    Filed: January 4, 2002
    Date of Patent: August 5, 2003
    Assignee: Grain Processing Corporation
    Inventors: Richard D. Harvey, Stuart W. Mabee, James M. Crandall
  • Publication number: 20020100564
    Abstract: Disclosed is a process for preparing a paper web. The paper web is prepared from a low-grade furnish, which contains low-grade pulps, such as recycled pulp and/or groundwood pulp, and which, in one preferred embodiment, is a newsprint furnish. In accordance with the disclosed process, a pre-flocculated filler is added to the furnish prior to forming the paper web from the furnish. Filler will be retained in the web, and retention of undesired components of the furnish in the web will be reduced as compared with newsprint in which a filler is incorporated via conventional processes. Another embodiment contemplates the incorporation of a pre-flocculated coated broke slurry into a paper furnish prior to paper formation. The paper web formed via the process of the invention will have improved properties as a result of the incorporation of the pre-flocculated filler or treated broke into the web.
    Type: Application
    Filed: January 4, 2002
    Publication date: August 1, 2002
    Applicant: Grain Processing Corporation
    Inventors: Richard D. Harvey, Stuart W. Mabee, James M. Crandall
  • Publication number: 20020088565
    Abstract: Disclosed is a process for preparing a paper web. The paper web is prepared from a low-grade furnish, which contains low-grade pulps, such as recycled pulp and/or groundwood pulp, and which, in one preferred embodiment, is a newsprint furnish. In accordance with the disclosed process, a pre-flocculated filler is added to the furnish prior to forming the paper web from the furnish. Filler will be retained in the web, and retention of undesired components of the furnish in the web will be reduced as compared with newsprint in which a filler is incorporated via conventional processes. Another embodiment contemplates the incorporation of a pre-flocculated coated broke slurry into a paper furnish prior to paper formation. The paper web formed via the process of the invention will have improved properties as a result of the incorporation of the pre-flocculated filler or treated broke into the web.
    Type: Application
    Filed: January 4, 2002
    Publication date: July 11, 2002
    Applicant: Grain Processing Corporation
    Inventors: Richard D. Harvey, Stuart W. Mabee, James M. Crandall
  • Patent number: 4799964
    Abstract: A process for forming a preflocculated filler for use in making paper, which process comprises continuously bringing together an aqueous slurry of a paper filler material and a flocculating agent and imparting to the mixture for a period of not more than about 2 minutes and preferably for less than about 30 seconds, a shearing force sufficient to provide a flocculated filler of controlled particle size and most suitable for papermaking.
    Type: Grant
    Filed: April 29, 1987
    Date of Patent: January 24, 1989
    Assignee: Grain Processing Corporation
    Inventors: Richard D. Harvey, Robert E. Klem
  • Patent number: 4622299
    Abstract: A process for the conversion of starch to syrups having a dextrose equivalent (D.E.) value of at least 90 and is achieved by treating liquid starch with glucoamylase for a period of not more than three hours.
    Type: Grant
    Filed: November 16, 1984
    Date of Patent: November 11, 1986
    Assignee: Grain Processing Corporation
    Inventors: Richard D. Harvey, Paul R. Witt
  • Patent number: 4579944
    Abstract: Production of starch derivatives by reacting a starch derivatizing agent with chemically-mechanically gelatinized starch.
    Type: Grant
    Filed: March 22, 1985
    Date of Patent: April 1, 1986
    Assignee: Grain Processing Corporation
    Inventors: Richard D. Harvey, Roger E. McPherson
  • Patent number: 4566910
    Abstract: Starch phosphates are prepared by reacting with an alkaline starch paste while maintaining an alkaline pH a phosphate salt at a temperature of about 45.degree. to 95.degree. C. for a period of not more than about 120 minutes. Amphoteric starch phosphates are prepared by also reacting with the starch paste a cationizing agent.
    Type: Grant
    Filed: November 12, 1982
    Date of Patent: January 28, 1986
    Assignee: Grain Processing Corporation
    Inventors: E. Daniel Hubbard, Richard D. Harvey, Mark L. Hogen
  • Patent number: 4554021
    Abstract: A process for preparing a cationic starch dispersion wherein an alkaline, gelatinized starch is reacted with a cationic reagent either concurrently with, or subsequently to, the cooking process resulting in a product in which the cationic reagent is chemically bound to the starch molecule. The process is conducive to on-site preparation of a cationic starch derivative which can be utilized without additional treatment as a papermaking adjunct, textile size, waste-water treatment or tailings flocculent, etc.
    Type: Grant
    Filed: May 28, 1982
    Date of Patent: November 19, 1985
    Assignee: Grain Processing Corporation
    Inventors: Richard D. Harvey, E. Daniel Hubbard, Robert A. Meintrup
  • Patent number: 4517022
    Abstract: Dehulled and degermed dry-milled corn products are refined by mixing for a period of not more than 4 hours at ambient temperature dehulled and degermed corn containing starch and protein with water to form an aqueous slurry, treating the slurry with alkali, and subjecting the alkali containing slurry to high intensity mixing. Sodium sulfite may be present in the alkali containing slurry. A high-quality starch then is recovered.
    Type: Grant
    Filed: October 17, 1983
    Date of Patent: May 14, 1985
    Assignee: Grain Processing Corporation
    Inventor: Richard D. Harvey
  • Patent number: 4373099
    Abstract: A process whereby a gelatinized starch having a cationic reagent chemically bound to the starch backbone and a reduced viscosity is prepared by (1) gelatinizing starch and substantially simultaneous with gelatinization reacting said treated starch with an alkyl or alkenyl amine and a water soluble oxidant or (2) simultaneously reacting an alkyl or alkenyl amine and a water soluble oxidant with a gelatinized starch. The process is conducive to the on-site preparation of a thinned cationic starch derivative which can be utilized without additional treatment as a papermaking additive, textile size, waste water treatment, tailing flocculent, etc.
    Type: Grant
    Filed: October 7, 1981
    Date of Patent: February 8, 1983
    Assignee: Grain Processing Corporation
    Inventors: E. Daniel Hubbard, Richard D. Harvey
  • Patent number: 4279658
    Abstract: Gelatinization and dispersion of starch with a starch solvent such as sodium hydroxide and using mechanical shear.
    Type: Grant
    Filed: August 16, 1978
    Date of Patent: July 21, 1981
    Assignee: Grain Processing Corporation
    Inventors: Richard D. Harvey, Thomas L. Gallaher, Raymond L. Mullikin, Thomas L. Small
  • Patent number: 4241183
    Abstract: A malt source of enzymes is used to liquefy starch at high temperatures.
    Type: Grant
    Filed: April 30, 1979
    Date of Patent: December 23, 1980
    Assignee: Grain Processing Corporation
    Inventors: Paul R. Witt, Richard D. Harvey