Patents by Inventor John E. Karlberg

John E. Karlberg 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).

  • Supports for coaxial conduits
    Patent number: 4354657
    Abstract: Supports for coaxial conduits are disclosed particularly suitable for supporting, on an inner nozzle or conduit protruding from an existing reactor wall, a nozzle sleeve which is to be held in concentric relation to the inner nozzle so that concrete may be poured in surrounding relation to the nozzle sleeve, the supports comprising wedging units adjustable from the outer ends and radius bars holding upper wedging units in place while the nozzle sleeve is moved into place.
    Type: Grant
    Filed: December 29, 1980
    Date of Patent: October 19, 1982
    Inventor: John E. Karlberg