Patents by Inventor William V. Crawford

William V. Crawford 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).

  • Patent number: 4295668
    Abstract: An adapter for connecting a plastic pipe system to a metallic pipe system; including an elongated, plastic sleeve having a first end thereof adapted to be joined to a plastic pipe system and a second end thereof adapted to be joined to a metallic pipe system and an elongated, metallic reinforcing sleeve, having an outside diameter substantially equal to the inside diameter of the second end of the plastic sleeve, a length less than the length of the plastic sleeve and a significant portion of one end tapered from the diametric exterior thereof inwardly and toward the one end thereof, mounted in the second end of the plastic sleeve with its tapered end toward the interior of the plastic sleeve. A pipeline structure including the adapter joined at one end to a plastic pipe system and the other end joined to a metallic pipe system is also described.
    Type: Grant
    Filed: June 27, 1979
    Date of Patent: October 20, 1981
    Assignee: Phillips Petroleum Company
    Inventors: Jean H. Louthan, Russell C. Cox, William V. Crawford
  • Patent number: 4005968
    Abstract: An apparatus for reforming pipe ends by belling or the like. The apparatus includes a support structure which has a heater movably mounted thereon and is movable between a pipe end heating position and a second position remote from the heating position. A clamp is provided to hold the pipe in position during heating and forming. A forming mandrel is carried by power operated moving means which selectively moves the mandrel into forming engagement with an end portion of the pipe and after forming of the end portion the mandrel is retracted from engagement therewith. Cooling means are also provided to cool the formed pipe end portion.
    Type: Grant
    Filed: May 19, 1975
    Date of Patent: February 1, 1977
    Assignee: Phillips Petroleum Company
    Inventor: William V. Crawford