Patents by Inventor Clarence G. Cooper

Clarence G. Cooper 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 for launching pigs into pipelines
    Patent number: 5296039
    Abstract: An apparatus for inserting compressible pigs into a pipeline. The apparatus includes a conical chamber that fits into the end of the pipeline. A plurality of spring tensioned hooks hold the conical chamber in place. The pig is inserted into the conical chamber, a cover having a threaded rod is then secured to the chamber and the pig is pushed through the chamber into pipeline by turning the threaded rod.
    Type: Grant
    Filed: May 6, 1993
    Date of Patent: March 22, 1994
    Inventor: Clarence G. Cooper
  • Apparatus for launching pigs into pipelines
    Patent number: 5208937
    Abstract: An apparatus for inserting compressible pigs into a pipeline. The apparatus includes a conical chamber that fits into the end of the pipeline. A plurality of spring tensioned hooks hold the conical chamber in place. The pig is inserted into the conical chamber, a cover having a threaded rod is then secured to the chamber and the pig is pushed through the chamber into pipeline by turning the threaded rod.
    Type: Grant
    Filed: December 27, 1990
    Date of Patent: May 11, 1993
    Inventor: Clarence G. Cooper