Patents by Inventor Abraham V. D. Boogaart

Abraham V. D. Boogaart 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).

  • Down hole blow out preventer and method of use
    Patent number: 4588035
    Abstract: A down hole blow out preventer which can be installed at the lower end of a drill string as close as possible to the drill bit and which can isolate an unexpected producing zone in a bore hole from the rest of the hole by closing off the drill string at its lower end and closing off the annulus between the drill string and the wall of the bore hole by means of an inflatable packer. The packer can be operated when a predetermined pressure difference exists between the annulus and the mud column inside the tool.
    Type: Grant
    Filed: May 10, 1984
    Date of Patent: May 13, 1986
    Assignee: I I. E. Innovation Enterprise Ltd.
    Inventors: Adrianus W. Van Gils, Abraham V. D. Boogaart