Patents by Inventor Jantje Been

Jantje Been 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).

  • Pipe pig and method of cleaning a pipe
    Patent number: 9009905
    Abstract: A pipe pig for refinery heater tubes is disclosed. The pipe pig has arcuate cleaning elements which form an expandable circumference. Each of the arcuate cleaning elements has a scraping edge. A spring element biases the arcuate cleaning elements radially outward. The pipe pig may have structural components made from titanium alloys and arcuate cleaning elements made from carbon-carbon composites. A method for cleaning coking out of refinery heater tubes using the pipe pig is also disclosed.
    Type: Grant
    Filed: July 31, 2009
    Date of Patent: April 21, 2015
    Assignee: On Stream Technologies Inc.
    Inventors: Jantje Been, Baotong Lu, David Crick, Guenther Metzker
  • PIPE PIG AND METHOD OF CLEANING A PIPE
    Publication number: 20110203676
    Abstract: A pipe pig for refinery heater tubes is disclosed. The pipe pig has arcuate cleaning elements which form an expandable circumference. Each of the arcuate cleaning elements has a scraping edge. A spring element biases the arcuate cleaning elements radially outward. The pipe pig may have structural components made from titanium alloys and arcuate cleaning elements made from carbon-carbon composites. A method for cleaning coking out of refinery heater tubes using the pipe pig is also disclosed.
    Type: Application
    Filed: July 31, 2009
    Publication date: August 25, 2011
    Applicant: ON STREAM TECHNOLOGIES INC.
    Inventors: Jantje Been, Baotong Lu, David Crick, Guenther Metzker