Patents by Inventor Robert K. Krueger

Robert K. Krueger 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: 4158574
    Abstract: An amylaceous material having alkaline viscosities in the range of 10 to 20 seconds using a 1.3 g sample and 15 to 20 seconds using a 5.2 g sample and having cold water solubles of between 50% and 98% is made by hydrolysis of starting material such as corn, flour, corn meal, corn grits, corn starch, sorghum flour, sorghum meal and sorghum grits at moistures between 5% and 12%, adjusting the pH of the hydrolyzed amylaceous material to between pH 3 and 6, gelatinizing the pH adjusted hydrolyzed amylaceous material, and removing water from the gelatinized product.
    Type: Grant
    Filed: November 12, 1976
    Date of Patent: June 19, 1979
    Assignee: Krause Milling Company
    Inventors: Robert G. Cummisford, Richard J. Wasielewski, Robert K. Krueger
  • Patent number: 4098859
    Abstract: Disclosed herein is a method of manufacturing a bonded particulate article by admixing particulate material with a binder system, the binder system being formed by admixing a polyol selected from the group comprising a saccharide, a saccharide polymer, and a glyco protein with glyoxal, with a solvent, and with an alkali halide; forming the admixture in a heated mold; removing the bonded article from the mold; and allowing it to cool.
    Type: Grant
    Filed: November 12, 1976
    Date of Patent: July 4, 1978
    Assignee: Krause Milling Company
    Inventors: Robert G. Cummisford, Richard J. Wasielewski, Robert K. Krueger
  • Patent number: 4098615
    Abstract: Disclosed herein is a method of manufacturing a resin-like material suitable for formed articles by cross-linking a saccharide-containing substance with glyoxal in water by controlling, by accelerating or retarding, the rate of the crosslinking reaction by the use of an alkali halide by dissolving or dispersing the alkali halide, saccharide-containing substance and glyoxal in water, causing the mixture to react by the application of heat, and removing moisture from the reacted mixture.
    Type: Grant
    Filed: November 12, 1976
    Date of Patent: July 4, 1978
    Assignee: Krause Milling Company
    Inventors: Robert G. Cummisford, Richard J. Wasielewski, Robert K. Krueger
  • Patent number: 4089691
    Abstract: A method for manufacturing a foundry core comprising mixing sand and a binder system containing a saccharide-containing material, glyoxal and an alkali halide.
    Type: Grant
    Filed: November 12, 1976
    Date of Patent: May 16, 1978
    Assignee: Krause Milling Company
    Inventors: Robert G. Cummisford, Richard J. Wasielewski, Robert K. Krueger
  • Patent number: 4070314
    Abstract: A high fiber-containing fraction from a cereal grain or oilseed is combined with other high fiber-containing fractions to provide 30-100% of an extender, with cereal flours or starches providing 0-70%, and the mixtures are used as amylaceous extenders which are particularly useful in producing adhesives for the bonding of wood such as veneers in the production of products such as plywood.
    Type: Grant
    Filed: October 7, 1976
    Date of Patent: January 24, 1978
    Assignee: Krause Milling Company
    Inventors: Richard J. Alexander, Robert K. Krueger
  • Patent number: 4013629
    Abstract: An inorganic alkali halide is employed in a binder system to catalyze the reaction between glyoxal and polyhydroxyl compounds while permitting a controlled reaction rate and control of properties. The binder system has shown good utility as a foundry core binder.
    Type: Grant
    Filed: February 21, 1975
    Date of Patent: March 22, 1977
    Assignee: Krause Milling Company
    Inventors: Robert G. Cummisford, Richard J. Wasielewski, Robert K. Krueger
  • Patent number: 3983084
    Abstract: A gelatinized amylaceous material, modified with a nitrogen containing compound such as urea, is combined with a synthetic resin, and the mixture is used as a binder which is particularly useful in producing compression molded particle board.
    Type: Grant
    Filed: October 18, 1974
    Date of Patent: September 28, 1976
    Assignee: Krause Milling Company
    Inventors: Richard J. Alexander, Robert K. Krueger