Patents by Inventor James H. Ragland

James H. Ragland 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).

  • Once-through steam generator
    Patent number: 4474011
    Abstract: An evaporator for producing wet steam in a cogeneration plant wherein the evaporator is a multiple pass unit having continuous in-tube flow paths from inlet to outlet. The evaporator is a shell and tube type with the clean steam on the shell side and water in the tubes. The evaporator is particularly useful in a cogeneration plant used in a secondary recovery process using contaminated wet steam.
    Type: Grant
    Filed: May 12, 1983
    Date of Patent: October 2, 1984
    Assignee: Shell California Production Inc.
    Inventors: Arthur W. Nelson, James H. Ragland
  • Trailer hitch
    Patent number: 4307893
    Abstract: A hitch for use in towing a trailer behind a bicycle can be constructed using two elongated elastomeric straps, one end of each of the straps being connected to the bicycle and one end of each of the straps being connected to the trailer.
    Type: Grant
    Filed: January 14, 1980
    Date of Patent: December 29, 1981
    Assignee: Bike-A-Boose Mfg. Company
    Inventor: James H. Ragland