Patents by Inventor Stanley William Norman

Stanley William Norman 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).

  • Method and arrangement for controlling the position of an underground manhole assembly
    Patent number: 3930372
    Abstract: A method and arrangement for preventing an underground manhole assembly from moving upwards in response to a change in soil conditions beneath the assembly are disclosed herein. For example, in the event the soil directly beneath the assembly includes substantial moisture and in the event this moisture freezes, the latter expands against the base of the assembly and in many cases pushes the assembly in an upward direction. The method and arrangement disclosed herein eliminates this upward movement by the utilization of a pressurized fluid barrier which is maintained between the manhole assembly and the soil directly beneath the assembly.
    Type: Grant
    Filed: November 28, 1973
    Date of Patent: January 6, 1976
    Assignee: Johns-Manville Corporation
    Inventor: Stanley William Norman