Patents by Inventor Laura Gunsalus

Laura Gunsalus 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).

  • Aqueous quenching media and use thereof in quenching metal substrates
    Patent number: 9803255
    Abstract: Aqueous media for quenching metal substrates are provided and contain (i) a polyvinylpyrrolidone/polyvinylcaprolactam copolymer and (ii) one or more of a second polymer, which is selected from (a) a substituted oxazoline polymer; (b) a poly(oxyethylene-oxyalkylene)glycol; or (c) a polyvinylpyrrolidone polymer. The quenching bath provides reduced cooling rates through the martensite temperature ranges. Also provided are processes for quenching metal substrates using these quenching media.
    Type: Grant
    Filed: May 13, 2014
    Date of Patent: October 31, 2017
    Assignee: Houghton Technical Corporation
    Inventors: Laura Gunsalus, Joseph F. Warchol
  • Aqueous Quenching Media and Use Thereof in Quenching Metal Substrates
    Publication number: 20140246132
    Abstract: Aqueous media for quenching metal substrates are provided and contain (i) a polyvinylpyrrolidone/polyvinylcaprolactam copolymer and (ii) one or more of a second polymer, which is selected from (a) a substituted oxazoline polymer; (b) a poly(oxyethylene-oxyalkylene)glycol; or (c) a polyvinylpyrrolidone polymer. The quenching bath provides reduced cooling rates through the martensite temperature ranges. Also provided are processes for quenching metal substrates using these quenching media.
    Type: Application
    Filed: May 13, 2014
    Publication date: September 4, 2014
    Applicant: Houghton Technical Corp.
    Inventors: Laura Gunsalus, Joseph F. Warchol
  • Aqueous quenching media and use thereof in quenching metal substrates
    Patent number: 8764914
    Abstract: Aqueous media for quenching metal substrates are provided and contain (i) a polyvinylpyrrolidone/polyvinylcaprolactam copolymer and (ii) one or more of a second polymer, which is selected from (a) a substituted oxazoline polymer; (b) a poly(oxyethylene-oxyalkylene) glycol; or (c) a polyvinylpyrrolidone polymer. The quenching bath provides reduced cooling rates through the martensite temperature ranges. Also provided are processes for quenching metal substrates using these quenching media.
    Type: Grant
    Filed: December 30, 2010
    Date of Patent: July 1, 2014
    Assignee: Houghton Technical Corp.
    Inventors: Laura Gunsalus, Joseph F. Warchol
  • Aqueous Quenching Media and Use Thereof in Quenching Metal Substrates
    Publication number: 20110094638
    Abstract: Aqueous media for quenching metal substrates are provided and contain (i) a polyvinylpyrrolidone/polyvinylcaprolactam copolymer and (ii) one or more of a second polymer, which is selected from (a) a substituted oxazoline polymer; (b) a poly(oxyethylene-oxyalkylene) glycol; or (c) a polyvinylpyrrolidone polymer. The quenching bath provides reduced cooling rates through the martensite temperature ranges. Also provided are processes for quenching metal substrates using these quenching media.
    Type: Application
    Filed: December 30, 2010
    Publication date: April 28, 2011
    Applicant: Houghton Technical Corp.
    Inventors: Laura Gunsalus, Joseph F. Warchol
  • AQUEOUS QUENCHING MEDIA AND USE THEREOF IN QUENCHING METAL SUBSTRATES
    Publication number: 20090095384
    Abstract: Aqueous media for quenching metal substrates are provided and contain (i) a polyvinylpyrrolidone/polyvinylcaprolactam copolymer and (ii) one or more of a second polymer, which is selected from (a) a substituted oxazoline polymer; (b) a poly(oxyethylene-oxyalkylene) glycol; or (c) a polyvinylpyrrolidone polymer. The quenching bath provides reduced cooling rates through the martensite temperature ranges. Also provided are processes for quenching metal substrates using these quenching media.
    Type: Application
    Filed: October 11, 2007
    Publication date: April 16, 2009
    Applicant: Houghton Technical Corp.
    Inventors: Laura Gunsalus, Joseph F. Warchol