Patents by Inventor Ruby C. Beaver

Ruby C. Beaver 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).

  • Pipeline leak detector
    Patent number: 3974680
    Abstract: A pipeline pig inspection device having a plurality of pressure chambers for detecting pipeline leaks and eliminating erroneous indications of leaks caused by obstructions within the pipeline, significant changes in pipeline diameter, and minor fluid flows through the pig which are not caused by leaks.
    Type: Grant
    Filed: May 27, 1975
    Date of Patent: August 17, 1976
    Assignee: Inspection Technology Development, Inc.
    Inventor: Ruby C. Beaver
  • Method for flaw location in a magnetizable pipeline by use of magnetic markers positioned outside of said pipeline
    Patent number: 3967194
    Abstract: A magnetic flux leakage method and apparatus for inspecting magnetizable test objects such as pipelines are disclosed. Magnetic diodes are connected to give temperature-independent readings of flux leakage and are spaced apart according to the size of the flaws sought to be detected. Groups of diodes are overlapped to provide complete coverage of the area sought to be inspected. Certain of the largest signals received at any one time from the groups of diodes are transmitted to recording means to reduce the number of signals recorded. Diode signals are subtracted from each other to determine relative differences in detected fluxes. For inspecting pipelines, the diodes and magnets are mounted on the apparatus by mounting assemblies which pivot about three axes and the diodes and magnets are urged yieldingly toward the pipeline wall by members formed of open cell foam polyurethane.
    Type: Grant
    Filed: January 8, 1975
    Date of Patent: June 29, 1976
    Assignee: Vetco Offshore Industries
    Inventors: Ruby C. Beaver, Theodor Clasen, Wolfgang Henning, Emil S. Johnson
  • Pipeline inspection device with pivotal support structure
    Patent number: 3949292
    Abstract: A magnetic flux leakage method and apparatus for inspecting magnetizable test objects such as pipelines are disclosed. Magnetic diodes are connected to give temperature-independent readings of flux leakage and are spaced apart according to the size of the flaws sought to be detected. Groups of diodes are overlapped to provide complete coverage of the area sought to be inspected. Certain of the largest signals received at any one time from the groups of diodes are transmitted to recording means to reduce the number of signals recorded. Diode signals are subtracted from each other to determine relative differences in detected fluxes. For inspecting pipelines, the diodes and magnets are mounted on the apparatus by mounting assemblies which pivot about three axes and the diodes and magnets are urged yieldingly toward the pipeline wall by members formed of open cell foam polyurethane.
    Type: Grant
    Filed: January 8, 1975
    Date of Patent: April 6, 1976
    Assignee: Vetco Offshore Industries, Inc.
    Inventors: Ruby C. Beaver, Theodor Clasen, Wolfgang Henning, Emil S. Johnson