Patents by Inventor Derek J. Hengen

Derek J. Hengen 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: 11033939
    Abstract: A jet nozzle and assembly for removing sludge deposits in oil storage tanks is provided. The jet nozzle can include a rigid conduit connectable to a pressurize liquid supply, a pivotal connection connected to the rigid conduit and a spray nozzle connected to the pivotal connection so that the spray nozzle can pivot around the proximal end of the spray nozzle. The assembly can include a manway cover attachable to a manway of a tank, a flange member provided on the manway cover with an aperture passing through the manway cover and inside the flange member, a valve connected to the flange member and a spool connected to the valve. A cover having an opening passing therethrough can be attached to the spool. The rigid conduit of the jet nozzle can be inserted through the opening in the cover so that the jet nozzle extends inside the assembly.
    Type: Grant
    Filed: November 11, 2019
    Date of Patent: June 15, 2021
    Inventor: Derek J. Hengen
  • Patent number: 10900861
    Abstract: A system for detecting leaks comprises at least one pipeline element, a leak detection device, and a pre-formed, heat-shrinkable sleeve comprising at least one inlet aperture. A method of manufacturing the sleeve comprises the steps of applying a cross-linkable material around a standard-sized sleeve mold, cross-linking the material, removing the cross-linked material from the mold, heating and stretching the cross-linked material around a stretching sleeve mold, allowing the material to cool, and removing the cooled sleeve from the mold. A method of monitoring a leak comprises the steps of receiving the pipeline element in the sleeve and applying heat to the sleeve, whereby the sleeve shrinks and conforms substantially around the profile of the pipeline element and at least a portion of the leak detection device.
    Type: Grant
    Filed: March 4, 2019
    Date of Patent: January 26, 2021
    Inventor: Derek J. Hengen
  • Publication number: 20200078838
    Abstract: A jet nozzle and assembly for removing sludge deposits in oil storage tanks is provided. The jet nozzle can include a rigid conduit connectable to a pressurize liquid supply, a pivotal connection connected to the rigid conduit and a spray nozzle connected to the pivotal connection so that the spray nozzle can pivot around the proximal end of the spray nozzle. The assembly can include a manway cover attachable to a manway of a tank, a flange member provided on the manway cover with an aperture passing through the manway cover and inside the flange member, a valve connected to the flange member and a spool connected to the valve. A cover having an opening passing therethrough can be attached to the spool. The rigid conduit of the jet nozzle can be inserted through the opening in the cover so that the jet nozzle extends inside the assembly.
    Type: Application
    Filed: November 11, 2019
    Publication date: March 12, 2020
    Inventor: Derek J. Hengen
  • Patent number: 10569314
    Abstract: A jet nozzle and assembly for removing sludge deposits in oil storage tanks is provided. The jet nozzle can include a rigid conduit connectable to a pressurize liquid supply, a pivotal connection connected to the rigid conduit and a spray nozzle connected to the pivotal connection so that the spray nozzle can pivot around the proximal end of the spray nozzle. The assembly can include a manway cover attachable to a manway of a tank, a flange member provided on the manway cover with an aperture passing through the manway cover and inside the flange member, a valve connected to the flange member and a spool connected to the valve. A cover having an opening passing therethrough can be attached to the spool. The rigid conduit of the jet nozzle can be inserted through the opening in the cover so that the jet nozzle extends inside the assembly.
    Type: Grant
    Filed: March 2, 2016
    Date of Patent: February 25, 2020
    Inventor: Derek J. Hengen
  • Publication number: 20190195723
    Abstract: A system for detecting leaks comprises at least one pipeline element, a leak detection device, and a pre-formed, heat-shrinkable sleeve comprising at least one inlet aperture. A method of manufacturing the sleeve comprises the steps of applying a cross-linkable material around a standard-sized sleeve mold, cross-linking the material, removing the cross-linked material from the mold, heating and stretching the cross-linked material around a stretching sleeve mold, allowing the material to cool, and removing the cooled sleeve from the mold. A method of monitoring a leak comprises the steps of receiving the pipeline element in the sleeve and applying heat to the sleeve, whereby the sleeve shrinks and conforms substantially around the profile of the pipeline element and at least a portion of the leak detection device.
    Type: Application
    Filed: March 4, 2019
    Publication date: June 27, 2019
    Inventor: Derek J. Hengen
  • Patent number: 10260986
    Abstract: A system for detecting leaks comprises at least one pipeline element, a leak detection device, and a pre-formed, heat-shrinkable sleeve comprising at least one inlet aperture. A method of manufacturing the sleeve comprises the steps of applying a cross-linkable material around a standard-sized sleeve mold, cross-linking the material, removing the cross-linked material from the mold, heating and stretching the cross-linked material around a stretching sleeve mold, allowing the material to cool, and removing the cooled sleeve from the mold. A method of monitoring a leak comprises the steps of receiving the pipeline element in the sleeve and applying heat to the sleeve, whereby the sleeve shrinks and conforms substantially around the profile of the pipeline element and at least a portion of the leak detection device.
    Type: Grant
    Filed: August 6, 2015
    Date of Patent: April 16, 2019
    Inventor: Derek J Hengen
  • Publication number: 20160349142
    Abstract: A system for detecting leaks comprises at least one pipeline element, a leak detection device, and a pre-formed, heat-shrinkable sleeve comprising at least one inlet aperture. A method of manufacturing the sleeve comprises the steps of applying a cross-linkable material around a standard-sized sleeve mold, cross-linking the material, removing the cross-linked material from the mold, heating and stretching the cross-linked material around a stretching sleeve mold, allowing the material to cool, and removing the cooled sleeve from the mold. A method of monitoring a leak comprises the steps of receiving the pipeline element in the sleeve and applying heat to the sleeve, whereby the sleeve shrinks and conforms substantially around the profile of the pipeline element and at least a portion of the leak detection device.
    Type: Application
    Filed: August 6, 2015
    Publication date: December 1, 2016
    Inventor: Derek J. Hengen
  • Publication number: 20160256904
    Abstract: A jet nozzle and assembly for removing sludge deposits in oil storage tanks is provided. The jet nozzle can include a rigid conduit connectable to a pressurize liquid supply, a pivotal connection connected to the rigid conduit and a spray nozzle connected to the pivotal connection so that the spray nozzle can pivot around the proximal end of the spray nozzle. The assembly can include a manway cover attachable to a manway of a tank, a flange member provided on the manway cover with an aperture passing through the manway cover and inside the flange member, a valve connected to the flange member and a spool connected to the valve. A cover having an opening passing therethrough can be attached to the spool. The rigid conduit of the jet nozzle can be inserted through the opening in the cover so that the jet nozzle extends inside the assembly.
    Type: Application
    Filed: March 2, 2016
    Publication date: September 8, 2016
    Inventor: Derek J. Hengen