Patents by Inventor Raymond Roy Fessler

Raymond Roy Fessler 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).

  • Inhibition of stress-corrosion cracking of steel pipeline
    Patent number: 3973056
    Abstract: A method for inhibiting stress-corrosion cracking of a steel pipeline transmitting gas under elevated pressure provided with an external protective coating and means for cathodic protection, and steep pipe and pipelines so protected are described. The method consists of introducing a composition containing at least one of the inhibitors, calcium monobasic phosphate, sodium monobasic phosphate, sodium tripolyphosphate and potassium silicate, into a buried pipeline environment. The inhibiting composition may be simply introduced to the environment adjacent the pipeline or it may be incorporated in a coating on the pipeline, either in the primer or in a top coating thereover or in an intermediate coating between a conventional primer and topcoating, or in a tape applied to the pipeline.
    Type: Grant
    Filed: June 6, 1974
    Date of Patent: August 3, 1976
    Assignee: American Gas Association, Inc.
    Inventors: Raymond Roy Fessler, Warren Elmer Berry, Russell Lee Wenk, Redvers Nicholson Parkins