Patents by Inventor Francis S. Somerville

Francis S. Somerville 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).

  • Method of applying a crack arrestor
    Patent number: 4327473
    Abstract: A method of applying a crack arrestor to a pipe section by heating and allowing the arrestor to cool and compress a layer of corrosion resistant material in the position it will occupy along the pipe length.
    Type: Grant
    Filed: January 19, 1979
    Date of Patent: May 4, 1982
    Assignee: Northern Border Pipeline Company
    Inventor: Francis S. Somerville
  • Crack arrestor
    Patent number: 4224966
    Abstract: This invention relates to crack arrestors for arresting longitudinal propagation of a crack in pipelines carrying natural gas or highly volatile normally gaseous liquids or combinations thereof, and to methods for applying said crack arrestor to pipelines.
    Type: Grant
    Filed: December 14, 1978
    Date of Patent: September 30, 1980
    Assignee: Northern Border Pipeline Company
    Inventor: Francis S. Somerville
  • Method of applying a bond-type crack arrestor to a pipe section of a pipeline
    Patent number: 4148127
    Abstract: A method of applying a band-type crack arrestor to a pipeline formed from a plurality of sections of pipe connected together end-to-end relation comprising placing the arrestor over the outer diameter of a pipe section and applying radial force to the inner diameter of the pipe section to engage the arrestor in a substantially stress free tight fit.
    Type: Grant
    Filed: October 19, 1976
    Date of Patent: April 10, 1979
    Assignee: Northern Border Pipeline Company
    Inventor: Francis S. Somerville