Patents by Inventor Fredrick ENQUIST

Fredrick ENQUIST 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).

  • Carpet probe for leak detection
    Patent number: 10309859
    Abstract: A carpet probe for detecting leaks in underground gas pipes, including a handle (12), a wheel (16) connected to the handle (12), and a flat carpet element (14) connected to the wheel (16) and including a sniffing inlet (28) connected to a gas sensor (18), is characterized in that the wheel (16) is the only wheel (16) of the carpet probe adapted for rolling on a ground surface.
    Type: Grant
    Filed: September 15, 2015
    Date of Patent: June 4, 2019
    Assignee: INFICON GmbH
    Inventor: Fredrick Enquist
  • Carpet Probe for Leak Detection
    Publication number: 20170276565
    Abstract: A carpet probe for detecting leaks in underground gas pipes, including a handle (12), a wheel (16) connected to the handle (12), and a flat carpet element (14) connected to the wheel (16) and including a sniffing inlet (28) connected to a gas sensor (18), is characterized in that the wheel (16) is the only wheel (16) of the carpet probe adapted for rolling on a ground surface.
    Type: Application
    Filed: September 15, 2015
    Publication date: September 28, 2017
    Inventor: Fredrick ENQUIST