Patents Assigned to Pexcor Manufacturing Company Inc.
  • Patent number: 9475236
    Abstract: A method for performing an infrared treatment includes the steps of receiving an extruded product and feeding the extruded product to an oven including at least one lamp unit. The lamp unit includes a lamp, a reflective surface enclosing a first side of the lamp and positioned to direct radiation from the lamp, and a glass disposed between a second side of the lamp and an extruded product, wherein the glass separates the lamp and the extruded product. The method further includes the step of creating cross-linking between layers of the extruded product by directing the radiation at the extruded product. Still further, the method includes the steps of directing a first gas flow at a surface of the product and directing a second gas flow at the glass.
    Type: Grant
    Filed: December 10, 2014
    Date of Patent: October 25, 2016
    Assignee: PEXCOR MANUFACTURING COMPANY, INC.
    Inventors: Aarne Heino, Iiya Kaufman
  • Patent number: 9067367
    Abstract: A method for performing an infrared treatment includes the steps of receiving an extruded product and feeding the extruded product to an oven including at least one lamp unit. The lamp unit includes a lamp, a reflective surface enclosing a first side of the lamp and positioned to direct radiation from the lamp, and a glass disposed between a second side of the lamp and an extruded product, wherein the glass separates the lamp and the extruded product. The method further includes the step of creating cross-linking between layers of the extruded product by directing the radiation at the extruded product. Still further, the method includes the steps of directing a first gas flow at a surface of the product and directing a second gas flow at the glass at an intensity, direction, and temperature that prevents the glass from becoming an infrared source.
    Type: Grant
    Filed: March 2, 2012
    Date of Patent: June 30, 2015
    Assignee: Pexcor Manufacturing Company, Inc.
    Inventors: Aarne Heino, Iiya Kaufman
  • Publication number: 20140151937
    Abstract: The object of the invention is a method to produce plastic pipe where a pipe of two or more layers is extruded and where at least one layer has additive that by heat treatment releases free radicals. Immediately after the extrusion, the pipe is heat treated by leading it either through a hot salt bath or an infra-red radiation so that the mentioned additive decomposes. Now, the layer(s) having additive get cross-linked and additionally the crosslinked layer(s) fix with chemical bonds to at least one other layer. With this method it is possible to produce a plastic pipe where there is no need to use a separate adhesion plastic layer to fix to each other layers that reject each other.
    Type: Application
    Filed: December 4, 2012
    Publication date: June 5, 2014
    Applicant: PEXCOR MANUFACTURING COMPANY INC.
    Inventor: Aarne Heino
  • Publication number: 20130228955
    Abstract: A method for performing an infrared treatment includes the steps of receiving an extruded product and feeding the extruded product to an oven including at least one lamp unit. The lamp unit includes a lamp, a reflective surface enclosing a first side of the lamp and positioned to direct radiation from the lamp, and a glass disposed between a second side of the lamp and an extruded product, wherein the glass separates the lamp and the extruded product. The method further includes the step of creating cross-linking between layers of the extruded product by directing the radiation at the extruded product. Still further, the method includes the steps of directing a first gas flow at a surface of the product and directing a second gas flow at the glass at an intensity, direction, and temperature that prevents the glass from becoming an infrared source.
    Type: Application
    Filed: March 2, 2012
    Publication date: September 5, 2013
    Applicant: Pexcor Manufacturing Company Inc.
    Inventors: Aarne Heino, Iiya Kaufman