Patents by Inventor Craig W. Vaughan

Craig W. Vaughan 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: 8926220
    Abstract: The present invention provides a process for thickening drilling mud waste materials including the steps of mixing a drilling mud waste materials having greater than zero percent by weight free liquid with an effective amount of one or more anionic copolymers to form a treated drilling mud waste materials. The anionic copolymer is derived from either (a) an anionic monomer, a nonionic monomer, and a cross-linking monomer, resulting in a cross-linked anionic copolymer; or (b) a non-cross-linked, linear chain co-polymer of an anionic polymer and a nonionic polymer; or (c) a blend of the combination of (a) and (b). A modified drilling mud waste material is disclosed having zero percent by weight free liquid.
    Type: Grant
    Filed: May 14, 2012
    Date of Patent: January 6, 2015
    Assignee: Henwil Corporation
    Inventors: Craig D. Iman, James T. George, James S. Herceg, Craig W. Vaughan, Todd W. Groff
  • Publication number: 20120294679
    Abstract: The present invention provides a process for thickening drilling mud waste materials including the steps of mixing a drilling mud waste materials having greater than zero percent by weight free liquid with an effective amount of one or more anionic copolymers to form a treated drilling mud waste materials. The anionic copolymer is derived from either (a) an anionic monomer, a nonionic monomer, and a cross-linking monomer, resulting in a cross-linked anionic copolymer; or (b) a non-cross-linked, linear chain co-polymer of an anionic polymer and a nonionic polymer; or (c) a blend of the combination of (a) and (b). A modified drilling mud waste material is disclosed having zero percent by weight free liquid.
    Type: Application
    Filed: May 14, 2012
    Publication date: November 22, 2012
    Inventors: Craig D. Iman, James T. George, James S. Herceg, Craig W. Vaughan, Todd W. Groff
  • Patent number: 6719881
    Abstract: A microparticle system for use as a retention and drainage aid in the production of alkaline and acid paper products comprises a HMW flocculent polymer (6), an acid colloid (7), and a coagulant or a MMW flooculant (5). The acid colloid (7) comprises an aqueous solution of a water soluble polymer or copolymer of melamine aldehyde, preferably melamine formaldehyde, and is present in an amount ranging between 0.0005% to 0.5% by weight based on the dry weight of the solids in the furnish. The HMW flocculant polymer (6) may be added to stock or furnish after the fan pump; and prior to the pressure screen (2); the acid colloid (7) may be added to the stock after the pressure screen (2), and the coagulant/MMW flocculant (5) may be added prior to the fan pump (1). Alternatively, this sequence of chemical additions can be changed, i.e. the acid colloid (7) can be added prior to or after the fan pump (1) or prior to the pressure screen (2).
    Type: Grant
    Filed: July 5, 2001
    Date of Patent: April 13, 2004
    Inventors: Charles R. Hunter, Craig W. Vaughan
  • Patent number: 5609862
    Abstract: Ampholyte terpolymer conditioning additives for hair care products are disclosed which improve wet and dry hair combability, especially detangling and reduced static flyaway, sheen, and fixative properties, especially curl retention. The ampholyte terpolymers may have a weight average molecular weight of from about 10 thousand to 10 million, and comprise (a) from at least 1 to as much as 95 weight percent of a nonionic monomer, (b) from at least 5 to as much as 80 weight percent of a cationic monomer, and (c) from at least 1 to as much as 75 weight percent of an anionic monomer. In a preferred embodiment, the amount of the cationic and anionic components is such that the overall % net charge of the ampholyte terpolymer is between -5.0 and +5.0. The ampholyte terpolymers are added to hair care product formulations in amounts ranging from 0.1-10% by weight. They are particularly compatible with anionic surfactant shampoos, providing clear formulations without the loss of conditioning properties described above.
    Type: Grant
    Filed: July 1, 1993
    Date of Patent: March 11, 1997
    Assignee: Calgon Corporation
    Inventors: Shih-Ruey T. Chen, Craig W. Vaughan
  • Patent number: 5296218
    Abstract: Ampholyte terpolymer conditioning additives for hair care products are disclosed which improve wet and dry hair combability, especially detangling and reduced static flyaway, sheen, and fixative properties, especially curl retention. The ampholyte terpolymers may have a weight average molecular weight of from about 10 thousand to 10 million, and comprise (a) from at least 1 to as much as 95 weight percent of the nonionic monomer acrylamide (AM), (b) from at least 5 to as much as 80 weight percent of the cationic monomer dimethyldiallylammonium chloride (DMDAAC), and (c) from at least 1 to as much as 75 weight percent of the anionic monomer acrylic acid (AA). In a preferred embodiment, the amount of the cationic and anionic components is such that the overall % net charge of the ampholyte terpolymer is between -5.0 and +5.0. The ampholyte terpolymers are added to hair care product formulations in amounts ranging from 0.1-10% by weight.
    Type: Grant
    Filed: September 28, 1992
    Date of Patent: March 22, 1994
    Assignee: Calgon Corporation
    Inventors: Shih-Ruey T. Chen, Craig W. Vaughan
  • Patent number: 5275809
    Abstract: Ampholyte terpolymer conditioning additives for hair care products are disclosed which improve wet and dry hair combability, especially detangling and reduced static flyaway, sheen, and fixative properties, especially curl retention. The ampholyte terpolymers may have a weight average molecular weight of from about 10 thousand to 10 million, and comprise (a) from at least 1 to as much as 95 weight percent of the nonionic monomer acrylamide (AM), (b) from at least 5 to as much as 80 weight percent of the cationic monomer dimethyldiallylammonium chloride (DMDAAC), and (c) from at least 1 to as much as 75 weight percent of the anionic monomer 2-acrylamido-2-methylpropane sulfonic acid (AMPSA), with optionally up to 50% of said anionic monomer AMPSA being replaced with the anionic monomer acrylic acid (AA). The ampholyte terpolymers are added to hair care product formulations in amounts ranging from 0.1-10% by weight.
    Type: Grant
    Filed: September 21, 1992
    Date of Patent: January 4, 1994
    Assignee: Calgon Corporation
    Inventors: Shih-Ruey T. Chen, Craig W. Vaughan
  • Patent number: 5015390
    Abstract: This invention is directed to a method for controlling the formation of scale deposits in aqueous systems by adding an effective amount, preferably at least 0.1 ppm, of a maleic anhydride/quaternary ammonium-type polymer to the aqueous system being treated.
    Type: Grant
    Filed: March 12, 1990
    Date of Patent: May 14, 1991
    Assignee: Calgon Corporation
    Inventors: Shih-Ruey T. Chen, Craig W. Vaughan
  • Patent number: 5000856
    Abstract: This invention is directed to a method for controlling the formation of scale deposits in aqueous systems operated at high pH and/or calcite saturation levels by adding an effective amount, preferably at least 0.1 ppm, of an allyl sulfonate/maleic anhydride polymer to the aqueous system being treated.
    Type: Grant
    Filed: February 20, 1990
    Date of Patent: March 19, 1991
    Assignee: Calgon Corporation
    Inventors: Shih-Ruey T. Chen, Craig W. Vaughan