Patents by Inventor James Michael McNicol

James Michael McNicol 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).

  • Convertible tubular scraper
    Patent number: 6851472
    Abstract: A tubular scraper which can be assembled so that the blades will be either rotating or non-rotating, as desired. If the tubular scraper is assembled in the non-rotating configuration, and the blades becomes stuck in the casing, the drill string can be pulled upward to engage a clutch. Once the clutch is engaged, the scraper is converted to a rotating scraper, so that the drill string can be rotated to assist in dislodging the stuck scraper blades.
    Type: Grant
    Filed: March 12, 2003
    Date of Patent: February 8, 2005
    Assignee: Baker Hughes Incorporated
    Inventors: Gregory Lee Hern, James Michael McNicol
  • Convertible tubular scraper
    Publication number: 20040007355
    Abstract: A tubular scraper which can be assembled so that the blades will be either rotating or non-rotating, as desired. If the tubular scraper is assembled in the non-rotating configuration, and the blades becomes stuck in the casing, the drill string can be pulled upward to engage a clutch. Once the clutch is engaged, the scraper is converted to a rotating scraper, so that the drill string can be rotated to assist in dislodging the stuck scraper blades.
    Type: Application
    Filed: March 12, 2003
    Publication date: January 15, 2004
    Inventors: Gregory Lee Hern, James Michael McNicol