Patents Represented by Attorney William J. Maheras

Find this attorney in the Justia Lawyer Directory

  • Filler component for investment casting slurries
    Patent number: 7588633
    Abstract: A filler component for making an investment casting slurry, which comprises: a major portion of finely divided silica, aluminum silicate, alumina, zircon, or mixtures thereof; and a minor portion of one or more finely divided materials having particles in which, on average, at least one dimension of the particle is at least about four times greater than at least one other dimension of the particle. Typically, the particles are of generally plate-like or needle-like shape.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: September 15, 2009
    Assignee: Nalco Company
    Inventors: Ronald S. Doles, David S. Viers
  • Method of dewatering grain stillage solids
    Patent number: 7566469
    Abstract: A method of dewatering corn stillage solids comprising adding to the solids an effective coagulating and flocculating amount of an anionic copolymer comprising acrylic acid sodium salt, methacrylic acid sodium salt or 2-acrylamido-2-methyl-1-propanesulfonic acid sodium salt to form a mixture of water and coagulated and flocculated solids; and separating the water from the coagulated and flocculated solids using a dewatering device.
    Type: Grant
    Filed: October 13, 2003
    Date of Patent: July 28, 2009
    Assignee: Nalco Company
    Inventor: David W. Scheimann
  • High molecular weight polymers containing pendant salicylic acid groups for clarifying Bayer process liquors
    Patent number: 7560032
    Abstract: A high molecular weight, water-soluble polymer comprising pendant salicylic acid groups and having a weight average molecular weight of at least about 2,000,000 daltons and use of the polymer for clarifying red mud-containing liquors generated in the Bayer process for the recovery of alumina from bauxite.
    Type: Grant
    Filed: August 17, 2006
    Date of Patent: July 14, 2009
    Assignee: Nalco Company
    Inventors: Murat Quadir, Everett C. Phillips, Larry E. Brammer, Jr., Robert P. Mahoney, John D. Kildea, Manian Ramesh, John T. Malito
  • Method of dewatering thin stillage processing streams
    Patent number: 7497955
    Abstract: A method dewatering thin stillage process streams generated in the processing of grain to ethanol comprising adding to the process streams an effective flocculating amount of an anionic copolymer comprising acrylic acid sodium salt, methacrylic acid sodium salt or 2-acrylamido-2-methyl-1-propanesulfonic acid sodium salt to form a mixture of water and flocculated solids; and separating the water from the flocculated solids using a dewatering device.
    Type: Grant
    Filed: December 15, 2006
    Date of Patent: March 3, 2009
    Assignee: Nalco Company
    Inventors: David W. Scheimann, Angela S. Kowalski
  • Flotation of sulfide mineral species with oils
    Patent number: 7461745
    Abstract: This invention is directed to the use of non-sulfur containing compounds as collectors in the froth flotation of certain mineral sulfide and metallic compounds. These non-sulfur-containing compounds may be from natural sources, such as vegetable oils, or synthesized commercial sources. These non-sulfide collectors can be used singularly, in combinations, and in mixtures with known commercial sulfur containing collectors. These non-sulfur-containing collectors are compatible with common frothers.
    Type: Grant
    Filed: October 26, 2004
    Date of Patent: December 9, 2008
    Assignee: Nalco Company
    Inventors: Tom L. Young, Michael G. Greene, Kathy Bauer, Bonnie J. Reber, legal representative, Sharon K. Young, Norman R. Reber
  • System to produce sugar from plant materials
    Patent number: 7182818
    Abstract: A process system that uses a reduced amount of lime or other base to clarify or purify juice or other process liquid (1) obtained from plant material (2) such as sugar cane, sugar beets, or sweet sorghum. Specifically, apparatus and methods to reduce volatile materials in juice or other process liquid (1) to increase pH requiring the use of less lime or other base to achieve the desired pH values for clarification or purification in subsequent steps, such as preliming (33).
    Type: Grant
    Filed: January 6, 2003
    Date of Patent: February 27, 2007
    Assignee: Nalco Company
    Inventor: David O. Sanders
  • Method of reducing materials contained in juice
    Patent number: 7150793
    Abstract: A process system that uses a reduced amount of lime or other base to clarify or purify juice obtained from plant material such as sugar cane, sugar beets, or sweet sorghum. Specifically, apparatus and methods to reduce volatile materials in juice providing a product that has an increased pH requiring the use of less lime or other base to achieve the desired pH values for clarification or purification.
    Type: Grant
    Filed: November 26, 2003
    Date of Patent: December 19, 2006
    Assignee: Nalco Company
    Inventor: David O. Sanders