TREA

Calvin C. Williamson

Follow

Person

  • Napa, CA, US
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Apparatus for manually moving loads
    • Patent number 4,799,697
    • Issue date Jan 24, 1989
    • Calvin C. Williamson
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Method of roll forming cylindrical pipe
    • Patent number 4,706,488
    • Issue date Nov 17, 1987
    • Kaiser Steel Corporation
    • Calvin C. Williamson
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Method of roll forming cylindrical pipe
    • Patent number 4,628,721
    • Issue date Dec 16, 1986
    • Kaiser Steel Corporation
    • Calvin C. Williamson
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Pipe forming apparatus
    • Patent number 4,606,208
    • Issue date Aug 19, 1986
    • Kaiser Steel Corporation
    • Calvin C. Williamson
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Method and apparatus for tracking seam welds on pipes and the like
    • Patent number 4,577,796
    • Issue date Mar 25, 1986
    • Kaiser Steel Corporation
    • Joseph E. Powers
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Edge preforming of metal plate
    • Patent number 4,476,703
    • Issue date Oct 16, 1984
    • Kaiser Steel (Delaware), Inc.
    • Calvin C. Williamson
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Pipe press
    • Patent number 4,445,357
    • Issue date May 1, 1984
    • Kaiser Steel Corporation
    • Joseph E. Powers
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Cut-off and face machine
    • Patent number 4,430,913
    • Issue date Feb 14, 1984
    • Kaiser Steel Corporation
    • Calvin C. Williamson
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Plate latch and guide system
    • Patent number 4,398,629
    • Issue date Aug 16, 1983
    • Kaiser Steel Corporation
    • Calvin C. Williamson
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Edge preforming of metal plate
    • Patent number 4,353,235
    • Issue date Oct 12, 1982
    • Kaiser Steel Corporation
    • Calvin C. Williamson
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...