Patents by Inventor William S. Carey

William S. Carey 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).

  • Method for inhibiting silica and silicate deposition
    Patent number: 5422010
    Abstract: A method and composition for inhibiting silica and silicate deposition on metal surfaces in contact with aqueous systems is disclosed.
    Type: Grant
    Filed: June 15, 1994
    Date of Patent: June 6, 1995
    Assignee: Betz Laboratories, Inc.
    Inventors: William S. Carey, Andrew Solov, Libardo A. Perez
  • Control of scale formation in aqueous systems
    Patent number: 5378372
    Abstract: A method and polymers for inhibiting the formation of scale is disclosed. The method is particularly effective at inhibiting the formation and deposition of calcium scales in circulating aqueous systems such as cooling water systems. The method comprises introducing into the aqueous system a polymer of the general formula: ##STR1## wherein R is hydrogen, alkyl, aryl, substituted alkyl or substituted aryl; R' and R" are each independently hydrogen, C.sub.1-4 alkyl or C.sub.1-4 substituted alkyl; Z is O, S, NH, or NR, where R is as described above; n is a positive integer greater than 1; f is a positive integer; and M is hydrogen, a water soluble cation (e.g., NH.sub.4.sup.+, alkali metal), or a C.sub.1 -C.sub.3 alkyl group.
    Type: Grant
    Filed: June 9, 1993
    Date of Patent: January 3, 1995
    Assignee: Betz Laboratories, Inc.
    Inventors: William S. Carey, Andrew Solov, Donald T. Freese, Libardo A. Perez
  • Composition for controlling scale formation in aqueous systems
    Patent number: 5378390
    Abstract: A method and composition for controlling the formation and deposition of scale forming salts in a circulating aqueous system is described wherein a treatment solution of a substoichiometric amount of polyepoxysuccinic acid in combination with agaric acid is employed.
    Type: Grant
    Filed: March 11, 1994
    Date of Patent: January 3, 1995
    Assignee: Betz Laboratories, Inc.
    Inventors: Libardo A. Perez, Donald T. Freese, Judith B. Rockett, William S. Carey
  • Method for inhibiting silica and silicate deposition
    Patent number: 5332505
    Abstract: A method and composition for inhibiting silica and silicate deposition on metal surfaces in contact with aqueous systems is disclosed.
    Type: Grant
    Filed: October 2, 1992
    Date of Patent: July 26, 1994
    Assignee: Betz Laboratories, Inc.
    Inventors: William S. Carey, Andrew Solov, Libardo A. Perez
  • Methods for controlling scale formation in aqueous systems
    Patent number: 5326478
    Abstract: A method of controlling the formation and deposition of scale forming salts in a circulating aqueous system is described wherein a treatment solution of a substoichiometric amount of polyepoxysuccinic acid in combination with agaric acid is employed.
    Type: Grant
    Filed: July 29, 1993
    Date of Patent: July 5, 1994
    Assignee: Betz Laboratories, Inc.
    Inventors: Libardo A. Perez, Donald T. Freese, Judith B. Rockett, William S. Carey
  • Method for treating metal surfaces with a polymer solution
    Patent number: 5112413
    Abstract: Methods for treating metal surfaces including contacting the surface with a water soluble or water dispersible polymer comprising a repeat unit (a) having the structure ##STR1## or salt form of said repeat unit, wherein R and R.sub.1 are the same or different and are independently chosen from C.sub.1 -C.sub.3 lower alkylene and wherein z is an integer of from 1-3. The methods also include use of copolymers having in addition to repeat unit (a) above, a repeat unit (b) having the structure ##STR2## from wherein X is OH, NH.sub.2, or OM wherein M is a cation, the molar ration of (a.sub.1):(b) being present in said copolymer being from about 20:1 to 1:20. The methods provide chromium free rinse solutions for use in rinsing phosphate-based conversion coated metal surfaces.
    Type: Grant
    Filed: June 26, 1990
    Date of Patent: May 12, 1992
    Assignee: Betz Laboratories, Inc.
    Inventors: William S. Carey, Fu Chen, David W. Reichgott
  • Method of inhibiting deposition on heat transfer surfaces in boilers
    Patent number: 5108619
    Abstract: This invention relates to a method of controlling deposition in steam generating systems. This method utilizes poly(methacrylic) acid polymers that were initiated by benzoyl peroxide or lauroyl peroxide as the treatment agents.
    Type: Grant
    Filed: January 18, 1991
    Date of Patent: April 28, 1992
    Assignee: Betz Laboratories, Inc.
    Inventors: Alexander C. McDonald, Fu Chen, William S. Carey
  • Novel amine-containing copolymers and their use
    Patent number: 4980433
    Abstract: This invention relates to novel polymer compositions which are useful for water treatment. These novel compostions are comprised of polymers of -60 ,.beta. ethylenically unsaturated monomer(s), preferably containing carboxylic acid or carboxylic amide functionalities, and amine-containing allyl ether monomers.
    Type: Grant
    Filed: October 5, 1989
    Date of Patent: December 25, 1990
    Assignee: Betz Laboratories, Inc.
    Inventors: Fu Chen, William S. Carey
  • Water treatment polymers and methods of use thereof
    Patent number: 4929695
    Abstract: New composition of monomers and polymers and their methods of use are disclosed. The polymers are water soluble and are composed of repeat units formed from an ethylenically unsaturated compound, and repeat units formed from substituted allyloxy alkylenes.
    Type: Grant
    Filed: October 27, 1989
    Date of Patent: May 29, 1990
    Assignee: Betz Laboratories, Inc.
    Inventors: Fu Chen, William S. Carey
  • Sealing composition and method for iron and zinc phosphating process
    Patent number: 4917737
    Abstract: Method and composition for sealing of a phosphate conversion coating is disclosed. The method includes contacting a phosphate conversion coating with an acidic aqueous solution of substituted iminodimethylene diphosphonic acids represented, as a class, by the formula R1--N--(CH.sub.2 --PO.sub.3 H.sub.2).sub.2 where R1 is a Z, alkyl or aryl moiety having a carbon chain up to the length where solubility in an acidic aqueous solution is lost. Z is ##STR1## where R2 and R3 are hydrogen, alkyl, aryl, or phosphono alkyl moieties, m is from 1 to 3 and Cn is a methylene carbon chain up to the length where solubility in an acidic aqueous solution is lost, and water soluble salts thereof. Preferably, R1 is methyl through octyl, benzyl, or diethylenediaminotrimethylene triphosphonic acid. The substituted iminodimethylene diphosphonic acid is applied as an aqueous bath with a pH of from about 3.3 to 4.0. The substituted iminodimethylene diphosphonic acid may dry in place or be followed by a deionized water rinse.
    Type: Grant
    Filed: March 13, 1989
    Date of Patent: April 17, 1990
    Assignee: Betz Laboratories, Inc.
    Inventors: William S. Carey, David W. Reichgott
  • Novel amine-containing copolymers and their use
    Patent number: 4913880
    Abstract: This invention relates to novel polymeric compositions which are useful for water treatment. These novel compositions are comprised of polymers of .alpha., .beta. ethylenically unsaturated monomer(s), preferably containing carboxylic acid or carboxylic amide functionalities, and amine-containing allyl ether monomers.
    Type: Grant
    Filed: March 9, 1989
    Date of Patent: April 3, 1990
    Assignee: Betz Laboratories, Inc.
    Inventors: Fu Chen, William S. Carey
  • Novel amine-containing copolymers and their use
    Patent number: 4906383
    Abstract: This invention relates to novel polymeric compositions which are useful for water treatment. These novel compositions are comprised of polymers of .alpha., .beta. ethylenically unsaturated monomer(s), preferably containing carboxylic acid or carboxylic amide functionalities, and amine-containing allyl ether monomers.
    Type: Grant
    Filed: July 5, 1988
    Date of Patent: March 6, 1990
    Assignee: Betz Laboratories, Inc.
    Inventors: Fu Chen, William S. Carey
  • Novel amine-containing copolymers and their use
    Patent number: 4898684
    Abstract: This invention relates to novel polymeric compositions which are useful for water treatment. These novel compositions are comprised of polymers of .alpha.,.beta. ethylenically unsaturated monomer(s), preferably containing carboxylic acid or carboxylic amide functionalities, and amine-containing allyl ether monomers.
    Type: Grant
    Filed: July 17, 1989
    Date of Patent: February 6, 1990
    Assignee: Betz Laboratories, Inc.
    Inventors: Fu Chen, William S. Carey
  • Water treatment polymers and methods of use thereof
    Patent number: 4895916
    Abstract: New composition of monomers and polymers and their methods of use are disclosed. The polymers are water soluble and are composed of repeat units formed from an ethylenically unsaturated compound, and repeat units formed from substituted allyloxy alkylenes.
    Type: Grant
    Filed: July 5, 1988
    Date of Patent: January 23, 1990
    Assignee: Betz Laboratories, Inc.
    Inventors: Fu Chen, William S. Carey
  • Novel amine-containing copolymers and their use
    Patent number: 4868263
    Abstract: This invention relates to novel polymeric compositions which are useful for water treatment. These novel compositions are comprised of a polymers of .alpha.,.beta. ethylenically unsaturated monomer(s), preferably containing carboxylic acid or carboxylic amide functionalities, and amine-containing allyl ether monomers.
    Type: Grant
    Filed: July 5, 1988
    Date of Patent: September 19, 1989
    Assignee: Betz Laboratories, Inc.
    Inventors: Fu Chen, William S. Carey
  • Water treatment polymers and methods of use thereof
    Patent number: 4863614
    Abstract: New composition of polymers and methods of use are disclosed. The polymers are water soluble and are composed of repeat units formed from an .alpha.,.beta. ethylenically unsaturated compound, and repeat units formed from allyl alkylene phosphonates.
    Type: Grant
    Filed: February 21, 1989
    Date of Patent: September 5, 1989
    Assignee: Betz Laboratories, Inc.
    Inventors: Fu Chen, William S. Carey
  • Water treatment polymers and methods of use thereof
    Patent number: 4849129
    Abstract: New composition of polymers and methods of use are disclosed. The polymers are water soluble and are composed of repeat units formed from an .alpha., .beta. ethylenically unsaturated compound, and repeat units formed from allyl alkylene phosphonates.
    Type: Grant
    Filed: May 6, 1988
    Date of Patent: July 18, 1989
    Assignee: Betz Laboratories, Inc.
    Inventors: Fu Chen, William S. Carey