Patents by Inventor Jan Pavlicek

Jan Pavlicek 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).

  • Processes for making high iron content stable ferric chloride solutions
    Patent number: 9290393
    Abstract: Processes for forming high iron content ferric chloride solutions, reconstituting ferric chloride solutions, and transporting the stable ferric chloride solutions with the high iron content are disclosed.
    Type: Grant
    Filed: November 30, 2011
    Date of Patent: March 22, 2016
    Assignee: KEMIRA OYJ
    Inventors: Krister Eskilsson, Stig Gunnarsson, Jeffrey Campbell, Jan Pavlicek, Faziollah Azarnoush, Esko Tirronen
  • Process for the purification of iron salt solutions
    Patent number: 9242877
    Abstract: A process is provided for removing metal salt co-constituents from an iron-containing solution comprising: (a) decreasing the free acidity of the solution to produce a slurry; (b) optionally heating the solution or the slurry to a temperature at least 30° C.; (c) optionally aging the slurry; (d) adding one or more cationic polyelectrolyte flocculants to the slurry; and (e) separating a solid-containing portion from a liquid portion of the slurry.
    Type: Grant
    Filed: January 6, 2012
    Date of Patent: January 26, 2016
    Assignee: Kemira Oyj
    Inventors: Sheila St. Amour, Jan Pavlicek
  • Process for the Purification of Iron Salt Solutions
    Publication number: 20130313202
    Abstract: A process is provided for removing metal salt co-constituents from an iron-containing solution comprising: (a) decreasing the free acidity of the solution to produce a slurry; (b) optionally heating the solution or the slurry to a temperature at least 30° C.; (c) optionally aging the slurry; (d) adding one or more cationic polyelectrolyte flocculants to the slurry; and (e) separating a solid-containing portion from a liquid portion of the slurry.
    Type: Application
    Filed: January 6, 2012
    Publication date: November 28, 2013
    Inventors: Sheila St. Amour, Jan Pavlicek
  • PROCESSES FOR MAKING HIGH IRON CONTENT STABLE FERRIC CHLORIDE SOLUTIONS
    Publication number: 20130236379
    Abstract: Processes for forming high iron content ferric chloride solutions, reconstituting ferric chloride solutions, and transporting the stable ferric chloride solutions with the high iron content are disclosed.
    Type: Application
    Filed: November 30, 2011
    Publication date: September 12, 2013
    Inventors: Krister Eskilsson, Stig Gunnarsson, Jeffrey Campbell, Jan Pavlicek, Faziollah Azarnoush, Esko Tirronen
  • Processes for making stable ferric chloride solutions
    Patent number: 8071067
    Abstract: Processes for forming ferric chloride solutions that are stable at relatively low temperatures and suitable for transportation without precipitation are provided. The stable ferric chloride solutions have an iron content of about 16 to about 23 weight percent and a hydrochloric acid content of about 11 to about 17 weight percent, wherein the ferric chloride solution is a stable solution and/or reversibly freezes at ?10° C. Also disclosed are processes for reconstituting the stable ferric chlorides solutions to provide a final iron content of 10 to 14 weight percent and lower the concentration of hydrochloric acid contained therein.
    Type: Grant
    Filed: May 26, 2009
    Date of Patent: December 6, 2011
    Assignee: Kemira Water Solutions, Inc.
    Inventors: Krister Eskilsson, Jeff Campbell, Stig Gunnarsson, Jan Pavlicek
  • Processes For Making Stable Ferric Chloride Solutions
    Publication number: 20100301255
    Abstract: Processes for forming ferric chloride solutions that are stable at relatively low temperatures and suitable for transportation without precipitation are provided. The stable ferric chloride solutions have an iron content of about 16 to about 23 weight percent and a hydrochloric acid content of about 11 to about 17 weight percent, wherein the ferric chloride solution is a stable solution and/or reversibly freezes at ?10° C. Also disclosed are processes for reconstituting the stable ferric chlorides solutions to provide a final iron content of 10 to 14 weight percent and lower the concentration of hydrochloric acid contained therein.
    Type: Application
    Filed: May 26, 2009
    Publication date: December 2, 2010
    Applicant: KEMIRA CHEMICALS INC.
    Inventors: Krister Eskilsson, Jeff Campbell, Stig Gunnarsson, Jan Pavlicek
  • Way of operation of distribution mechanism of a four-stroke internal combustion engine
    Patent number: 5823162
    Abstract: The operation of a distribution system of a four-stroke internal combustion engine, which has suction and exhaustion mechanisms, is based on the principle that the exhaustion mechanism, which opens during an expansion stroke and stays opened during the exhaustion stroke, stays opened also through the whole period of the combustion stroke and it closes only during the period of compression after opening of the suction mechanism.
    Type: Grant
    Filed: June 3, 1997
    Date of Patent: October 20, 1998
    Inventors: Jan Pavlicek, Lubos Jakubec, Mojmir Robes