Patents by Inventor Susan P. Rey

Susan P. Rey 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).

  • Inhibiting deposition of oil on surface of water-carrying system
    Patent number: 5454978
    Abstract: A surface active composition for dispersing an oil in an aqueous media and/or for inhibiting deposition of oil on a surface of a water carrying system is disclosed. Preferably, the water carrying system is at least one system selected from the group consisting of a cooling tower, a cooling tower fill, means for heat exchange, means for industrial processing, and a body of water. A method for inhibiting deposition of an oil on a surface of a water carrying system is also provided.
    Type: Grant
    Filed: April 28, 1993
    Date of Patent: October 3, 1995
    Assignee: Calgon Corporation
    Inventors: Daniel P. Vanderpool, Susan P. Rey
  • Novel polyphosphate/azole compositions and the use thereof as copper and copper alloy corrosion inhibitors
    Patent number: 5141675
    Abstract: A polyphosphate in combination with an azole such as in alkyl or alkoxy benzotriazole, mercaptobenzothiazole, tolyltriazole, benzotriazole, a substituted benzotriazole and/or 1-phenyl-5-mercaptotetrazole, is used to inhibit the corrosion of metallic surfaces, particularly copper surfaces, in contact with an aqueous system. Systems and compositions are also claimed.
    Type: Grant
    Filed: October 15, 1990
    Date of Patent: August 25, 1992
    Assignee: Calgon Corporation
    Inventors: Daniel P. Vanderpool, Susan P. Rey
  • Method for controlling silica/silicate deposition in aqueous systems using 2-phosphonobutane tricarboxylic acid-1,2,4 and anionic polymers
    Patent number: 5078879
    Abstract: 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 2-phosphonobutane tricarboxylic acid-1,2,4 and, optionally, an anionic polymer, preferably a carboxylic/sulfonic polymer, or salts thereof to the aqueous system being treated. Borate or molybdate ion sources may also be added.
    Type: Grant
    Filed: July 2, 1990
    Date of Patent: January 7, 1992
    Assignee: Calgon Corporation
    Inventors: Jasbir S. Gill, Susan P. Rey, John H. Wiernik
  • Method for controlling silica/silicate deposition in aqueous systems using phosphonates and carboxylic/sulfonic polymers
    Patent number: 4933090
    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 a designated phosphonate and, optionally, a carboxylic/sulfonic polymer or salt thereof to the aqueous system being treated. Borate or molybdate ion sources may also be added.
    Type: Grant
    Filed: December 28, 1988
    Date of Patent: June 12, 1990
    Assignee: Calgon Corporation
    Inventors: Jasbir S. Gill, Susan P. Rey, John H. Wiernik
  • Method for controlling corrosion using molybdate compositions
    Patent number: 4798683
    Abstract: A method for inhibiting corrosion in aqueous systems comprising adding to the system being treated an effective amount of a composition comprising a molybdate ion source and a water-soluble component selected from polymaleic acid anhydride, amine adducts of polymaleic anhydride, maleic anhydride copolymers, carboxylic acid/sulfonic acid polymers, salts of the above-described polymers, phosphonates, phosphino carboxylic acids, polyphosphoric acid and esters of polyphosphoric acid.
    Type: Grant
    Filed: April 21, 1988
    Date of Patent: January 17, 1989
    Assignee: Calgon Corporation
    Inventors: Bennett P. Boffardi, Susan P. Rey
  • Method for stabilizing metal ions
    Patent number: 4783267
    Abstract: A method for stabilizing metal ions in recirculating water systems is disclosed. This method utilizes 2-hydroxyphosphonoacetic acid at a dosage of 0.1-100 ppm to solubilize metal ions thereby reducing deposition and corrosion.
    Type: Grant
    Filed: June 29, 1987
    Date of Patent: November 8, 1988
    Assignee: Calgon Corporation
    Inventors: Bennett P. Boffardi, Susan P. Rey
  • Orthophosphate-containing desalination scale inhibitors
    Patent number: 4634532
    Abstract: The instant invention is directed to a process for the control of scale formation and deposition in thermal or reverse osmosis membrane desalination plants, comprising adding to the water 0.1 to 100 ppm of (a) a water soluble orthophosphate and (b) at least one compound selected from the group consisting of water soluble polycarboxylates, phosphonates, phosphates, sulfonates and polyamides.
    Type: Grant
    Filed: September 25, 1985
    Date of Patent: January 6, 1987
    Assignee: Calgon Corporation
    Inventors: Douglas P. Logan, Thomas E. Cornelius, III, Susan P. Rey