Patents Represented by Attorney M. C. Sudol
  • Patent number: 5240594
    Abstract: A system for monitoring and/or controlling a liquid/solid separation process is described. The system utilizes photodetectors to view the surface of the composition being dewatered, and correlates the corresponding signals from the photodetectors to dryness values.
    Type: Grant
    Filed: March 30, 1992
    Date of Patent: August 31, 1993
    Assignee: Calgon Corporation
    Inventor: Bosco P. Ho
  • Patent number: 5047078
    Abstract: This invention relates to the use of traditional scale inhibitors as fertilizers enhancers. More particularly, this invention relates to compositions which comprise: (a) a phosphate fertilizer and (b) a scale inhibiting compound. Further, this invention relates to a method of stimulating and increasing plant growth, and corresponding yields, comprising adding the above-defined compositions to the soil in which the plants being treated grow.
    Type: Grant
    Filed: May 2, 1985
    Date of Patent: September 10, 1991
    Assignee: Calgon Corporation
    Inventor: Jasbir S. Gill
  • Patent number: 5034405
    Abstract: The instant invention is directed to synergistic antimicrobial admixtures comprising 2-bromo-2-bromomethylglutaronitrile, 5-chloro-2-methyl-4-isothiazolin-3-one and 2-methyl-4-isothiazolin-3-one and its use in inhibiting microbial growth.
    Type: Grant
    Filed: May 13, 1986
    Date of Patent: July 23, 1991
    Assignee: Calgon Corporation
    Inventor: John A. Jakubowski
  • Patent number: 4894346
    Abstract: The instant invention is directed to a method for determining the concentration of sulfonate and/or polycarboyxlate compounds in an aqueous solution comprising:(a) adjusting the pH of a portion of the aqueous solution to less than 3.0 when measuring sulfonate concentration or to between 3.0 and 12.0 when measuring polycarboxylate concentration;(b) adding an effective amount of an aqueous solution containing a metachromatic dye to the pH-adjusted portion of Step (a);(c) measuring the absorbance of the admixture resulting from Step (b) at a wavelength between 300 nm and 700 nm; and(d) comparing the absorbance from Step (c) with absorbances of standard samples containing known concentrations of sulfonate and/or polycarboxylate compounds and said effective amount of the dye solution of Step (b), thereby determining the sulfonate and/or polycarboxylate concentration of the portion of Step (a).
    Type: Grant
    Filed: October 11, 1983
    Date of Patent: January 16, 1990
    Assignee: Calgon Corporation
    Inventors: Ronald R. Myers, Jack E. Fink
  • Patent number: 4880471
    Abstract: An improved method for detackifying over-sprayed paint, lacquer or enamel entrained in the circulating water of paint spray booths comprises maintaining in the wash water a small amount of an alkaline zinc solution containing ammonium hydroxide and ammonium chloride.
    Type: Grant
    Filed: June 22, 1988
    Date of Patent: November 14, 1989
    Assignee: Calgon Corporation
    Inventor: Herbert J. Kaiser
  • Patent number: 4874527
    Abstract: This invention is directed to a method for controlling the formation of silica/silicate deposits in aqueous systems by adding an effective amount, preferably at least 0.1 ppm, of an imine polymer, a phosphonate and, optionally, a source of molybdate or borate ions to the aqueous system being treated.
    Type: Grant
    Filed: April 28, 1988
    Date of Patent: October 17, 1989
    Assignee: Calgon Corporation
    Inventor: Jasbir S. Gill
  • Patent number: 4824968
    Abstract: Aromatic sulfonamides with a saturated heterocycle fused thereto are carbonic anhydrase inhibitors useful in the treatment of elevated intraocular pressure.
    Type: Grant
    Filed: June 26, 1987
    Date of Patent: April 25, 1989
    Assignee: Merck & Co., Inc.
    Inventors: Gerald S. Ponticello, J. Mark Wiggins
  • Patent number: 4786364
    Abstract: The instant invention is directed to a method for deinking cellulosic fibrous material impregnated with ink wherein a mixture of said material and water is stirred in the presence of a deinking agent, the improvement wherein the deinking agent is a hydrolyzed copolymer of dimethyldiallyl ammonium chloride and acrylamide.
    Type: Grant
    Filed: August 2, 1984
    Date of Patent: November 22, 1988
    Assignee: Calgon Corporation
    Inventor: Edwin R. Tefft
  • Patent number: 4782084
    Abstract: Novel 3-hydroxy-3-methylglutaryl-coenzyme A (HMG-CoA) reductase inhibitors which are useful as antihypercholesterolemic agents and are represented by the following general structural formulae (I) or (II): ##STR1## and pharmaceutically acceptable salts thereof the compounds of the formula (II) in which R.sup.1 is hydrogen are disclosed.
    Type: Grant
    Filed: June 29, 1987
    Date of Patent: November 1, 1988
    Assignee: Merck & Co., Inc.
    Inventors: Kamlesh P. Vyas, Hanumath P. Kari
  • Patent number: 4753687
    Abstract: This invention is directed to non-aqueous magnesium oxide slurries and the use thereof to coat silicon steels prior to high temperature annealing.
    Type: Grant
    Filed: May 4, 1987
    Date of Patent: June 28, 1988
    Assignee: Calgon Corporation
    Inventor: Michael W. Howe
  • Patent number: 4675178
    Abstract: The invention relates to stable deodorant compositions comprising at least one antimicrobial agent and poly-dimethyldialkyl ammonium chloride-acrylamide copolymers or dimethyldialkyl ammonium chloride cationic polymer which serve to enhance the residual efficacy of said agent on a surface.
    Type: Grant
    Filed: May 2, 1985
    Date of Patent: June 23, 1987
    Assignee: Calgon Corporation
    Inventors: William L. Klein, Arthur R. Sykes
  • Patent number: 4661479
    Abstract: This invention relates to bicyclic lactams and derivatives thereof which are useful as converting enzyme inhibitors and as antihypertensives.
    Type: Grant
    Filed: July 15, 1983
    Date of Patent: April 28, 1987
    Assignee: Merck and Co., Inc.
    Inventors: Matthew J. Wyvratt, Jr., Eugene D. Thorsett, Edward W. Tristram, Arthur A. Patchett, Elbert E. Harris
  • Patent number: 4652641
    Abstract: Compounds of the formula: ##STR1## and pharmaceutically acceptable salts thereof are inhibitors of angiotensin I converting enzyme and are useful as antihypertensive agents and are also useful as cholecystokinin antagonists.
    Type: Grant
    Filed: December 18, 1985
    Date of Patent: March 24, 1987
    Assignee: S. C. Mitri
    Inventor: William H. Parsons
  • Patent number: 4526957
    Abstract: The instant invention is directed to a copolymer of maleic anhydride and an alkylene oxide of the formula: ##STR1## wherein m is at least 4,n is at least 1,the ratio of m to n is at least 4:1, preferably 4:1 to 100:1,R, which may be the same or different, is a hydrogen, halogen, alkyl derivative or phenyl derivative, andR' is: ##STR2## The instant invention is also directed to a process for the preparation of the copolymer and its use in inhibiting the precipitation and deposition of scale in an aqueous system.
    Type: Grant
    Filed: February 24, 1983
    Date of Patent: July 2, 1985
    Assignee: Calgon Corporation
    Inventor: Gary F. Matz
  • Patent number: 4512823
    Abstract: The instant invention is directed to a slurry for use in coating silicon steel prior to high temperature annealing, comprising magnesium oxide, water and at least one inorganic compound selected from the group consisting of barium oxide, barium nitrate, chromium nitrate, and their hydrates.The instant invention is also directed to a process for coating silicon steel, comprising coating the steel with a magnesium oxide slurry prior to high temperature annealing, the improvement wherein at least one inorganic compound selected from the group consisting of barium oxide, barium nitrate, chromium nitrate, and their hydrates is pre-mixed in said slurry, thereby minimizing the formation of "tight magnesia" on the steel.
    Type: Grant
    Filed: April 10, 1984
    Date of Patent: April 23, 1985
    Assignee: Calgon Corporation
    Inventors: Michael W. Howe, Samuel W. Sopp
  • Patent number: 4501900
    Abstract: Aminosubstituted tetrahydrobenzindoles having antihypertensive activity are disclosed.
    Type: Grant
    Filed: March 4, 1981
    Date of Patent: February 26, 1985
    Assignee: Merck & Co., Inc.
    Inventors: John J. Baldwin, James H. Jones, George F. Lundell