Patents by Inventor Robert J. Veenstra

Robert J. Veenstra 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).

  • Patent number: 10259084
    Abstract: Supplementary cooling elements in addition to a primary cooling element of a furnace. The supplementary cooling elements, with two or more components, may be inserted from the outside of the furnace into holes that pass through and the primary cooling element such that the cooling elements protrude beyond the inner surface of the primary cooling element. An inner one of the components of the supplementary cooling element may be received by an outer one of the components in a manner that forces the outer component into a thermally conductive pressure connection with the primary cooling element.
    Type: Grant
    Filed: October 8, 2014
    Date of Patent: April 16, 2019
    Assignee: Hatch Ltd.
    Inventors: Robert J. Veenstra, David Henry Rudge, Maciej Urban Jastrzebski, John Andrew Ferguson Shaw
  • Publication number: 20160250726
    Abstract: It is proposed herein to add supplementary cooling elements to a primary cooling element of a furnace. The supplementary cooling elements, with two or more components, may be inserted from the outside of the furnace into holes that pass through and the primary cooling element such that the cooling elements protrude beyond the inner surface of the primary cooling element. An inner one of the components of the supplementary cooling element may be received by an outer one of the components in a manner that forces the outer component into a thermally conductive pressure connection with the primary cooling element.
    Type: Application
    Filed: October 8, 2014
    Publication date: September 1, 2016
    Inventors: John Andrew, Ferguson Shaw, Maciej Urban Jastrzebski, Robert J. Veenstra, David Henry Rudge
  • Patent number: 8245653
    Abstract: Binding systems are described for applying compressive forces on the refractory hearth and/or refractory sidewall of a circular furnace having an outer metal shell which may be segmented. One preferred binding system comprises a tensioning band having one or more segments which extends around the furnace hearth and/or sidewall, with a resilient connection being provided between the opposite ends of the band and, where the band is segmented, resilient connections are also provided between the ends of adjacent segments. Another preferred binding system comprises a plurality of pivoting members provided around the circumference of the furnace. Each pivoting member is acted upon by a force-generating member which applies a controlled amount of force to the pivoting member and causes it to apply a compressive force to the hearth.
    Type: Grant
    Filed: March 2, 2005
    Date of Patent: August 21, 2012
    Assignee: Hatch Ltd.
    Inventors: Felim P. McCaffrey, Nils W. Voermann, Clarence A. Nichols, Robert J. Veenstra, Jimmy Sarvinis, Jr., Keith E. Joiner, Brett T. Emery
  • Patent number: 7018544
    Abstract: A fluid treatment device, preferably for the treatment of water, is described. The device comprises a closed housing having a fluid inlet, a fluid outlet and a fluid treatment zone disposed between the fluid inlet and the fluid outlet. The fluid treatment zone comprises a first irradiation zone and a second irradiation zone. At least one fluid mixing element is interposed between the first irradiation zone and the second irradiation zone.
    Type: Grant
    Filed: February 27, 2003
    Date of Patent: March 28, 2006
    Assignee: Trojan Technologies Inc.
    Inventors: Robert J. Veenstra, Douglas G. Penhale, Alan J. Royce
  • Patent number: 6814012
    Abstract: A furnace binding and adjustment system for maintaining a refractory furnace hearth under compression utilizes a plurality of buckstays connected at their upper and lower ends by tie members. A fluid-pressurized tensioning device, preferably a hydraulics device, is provided at the ends of at least some of the tie members to permit some relative movement between the tie member end and the buckstay to permit adjustment of compressive forces applied to the refractory hearth. The use of multiple hydraulic devices permits simultaneous activation of the tensioning devices, and also permits the hydraulic pressure in the cylinders to be accurately adjusted and monitored from a remote location.
    Type: Grant
    Filed: October 11, 2002
    Date of Patent: November 9, 2004
    Assignee: Hatch Associates Ltd.
    Inventors: Felim P. McCaffrey, Keith E. Joiner, Robert J. Veenstra
  • Publication number: 20040069192
    Abstract: A furnace binding and adjustment system for maintaining a refractory furnace hearth under compression utilizes a plurality of buckstays connected at their upper and lower ends by tie members. A fluid-pressurized tensioning device, preferably a hydraulics device, is provided at the ends of at least some of the tie members to permit some relative movement between the tie member end and the buckstay to permit adjustment of compressive forces applied to the refractory hearth. The use of multiple hydraulic devices permits simultaneous activation of the tensioning devices, and also permits the hydraulic pressure in the cylinders to be accurately adjusted and monitored from a remote location.
    Type: Application
    Filed: October 11, 2002
    Publication date: April 15, 2004
    Inventors: Felim P. McCaffrey, Keith E. Joiner, Robert J. Veenstra
  • Publication number: 20040026337
    Abstract: A fluid treatment device, preferably for the treatment of water, is described. The device comprises a closed housing having a fluid inlet, a fluid outlet and a fluid treatment zone disposed between the fluid inlet and the fluid outlet. The fluid treatment zone comprises a first irradiation zone and a second irradiation zone. At least one fluid mixing element is interposed between the first irradiation zone and the second irradiation zone.
    Type: Application
    Filed: February 27, 2003
    Publication date: February 12, 2004
    Applicant: Trojan Technologies Inc.
    Inventors: Robert J. Veenstra, Douglas G. Penhale, Alan J. Royce