Patents by Inventor James Scala

James Scala 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).

  • Bulge formed cooling channels with a variable lead helix on a hollow body of revolution
    Patent number: 5221045
    Abstract: A method of constructing a nozzle having cooling channels comprises a shell and a liner which are formed into a body of revolution having an axis of revolution. Helical welds are formed to hold the liner and shell to each other with a channel position being defined between each pair of helical welds. Pressurized fluid which may be a gas or a liquid, is introduced between the weld pairs to outwardly bulge the material of at least one of the liner and shell to define the channels.
    Type: Grant
    Filed: September 23, 1991
    Date of Patent: June 22, 1993
    Assignee: The Babcock & Wilcox Company
    Inventors: Michael D. McAninch, Richard L. Holbrook, Dale F. Lacount, Chester M. Kawashige, John M. Crapuchettes, James Scala