Patents by Inventor Per-Johan Aronson

Per-Johan Aronson 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 the production of a dehumidifying element
    Patent number: 6630206
    Abstract: The present invention relates to a method of impregnating paper with a suspension of a molecular sieve in waterglass, such as soda waterglass or potassium waterglass, wherein the impregnated paper can be used as a dehumidifying element, and wherein the method comprises the steps of a) providing a piece of paper, such as facing paper and/or fluted paper; b) immersing the paper into a highly concentrated waterglass solution in which a molecular sieve has been suspended, at a temperature in the range of 45-95° C., wherein said suspension of highly concentrated waterglass/molecular sieve has a viscosity of at least 350 mPa.s at a temperature of 45° C.; and c) cooling the immersed paper with air at a temperature of at most 35° C. and preferably at most 25° C.
    Type: Grant
    Filed: February 28, 2001
    Date of Patent: October 7, 2003
    Assignee: Proflute AB
    Inventor: Per-Johan Aronson
  • Novel method for the production of a dehumidifying element
    Publication number: 20010024692
    Abstract: The present invention relates to a method of impregnating paper with a suspension of a molecular sieve in waterglass, such as soda waterglass or potassium waterglass, wherein the impregnated paper can be used as a dehumidifying element, and wherein the method comprises the steps of
    Type: Application
    Filed: February 28, 2001
    Publication date: September 27, 2001
    Applicant: Proflute AB
    Inventor: Per-Johan Aronson
  • Method of producing a dehumidifying element
    Patent number: 6265030
    Abstract: A method of impregnating paper with waterglass, such as soda waterglass or potassium silicate, the impregnated paper being usable as a dehumidifying element, wherein the method includes the steps of a) providing a sheet of paper such as facing paper and/or corrugated paper; b) immersing the paper into a highly concentrated waterglass solution at a temperature within the range of 45-95° C., with the highly concentrated waterglass solution having a viscosity of at least 350 mPa.s at a temperature of 45° C.; and c) cooling the immersed paper with air at a temperature no greater than 35° C. and preferably no greater than 25° C.
    Type: Grant
    Filed: October 12, 1999
    Date of Patent: July 24, 2001
    Assignee: Proflute AB
    Inventor: Per-Johan Aronson