Patents by Inventor Carol A. Norman

Carol A. 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).

  • Membrane liner for casinghead of oil well of the like
    Patent number: 5098220
    Abstract: A covering or liner, capable of surrounding the base of a casinghead of an oil well, which is capable of catching and retaining any fluid that may escape from the casinghead. This covering or liner is a flexible, inextensible, fluid impervious material that is capable of bordering an earthen cavity and surrounding the casinghead of an oil well. This covering or liner has a leak-proof seam to facilitate its installation around the casinghead and a collar to prevent seepage down the casinghead shaft. This invention further contemplates the method for using the same.
    Type: Grant
    Filed: October 22, 1990
    Date of Patent: March 24, 1992
    Inventor: Carol A. Norman