Patents Represented by Attorney Cooper, III: John C.

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  • Method for making a trimetallic cylinder
    Patent number: 4679294
    Abstract: A trimetallic cylinder according to the preferred embodiment of the present invention includes a mild or alloy steel cylindrical body with stainless steel end rings welded or otherwise suitably joined to each end of the body. A wear and corrosion resistant alloy lining is provided for the composite cylinder, the combination resulting in improved corrosion resistance for the overall assembly.
    Type: Grant
    Filed: November 25, 1985
    Date of Patent: July 14, 1987
    Inventors: Donald P. Lomax, Ronald M. Boggs