Patents by Inventor William B. Cade

William B. Cade 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).

  • Manual port closing tool for well cementing
    Patent number: 4941535
    Abstract: In a downhole staging apparatus for delivering fluidized cement sequentially into two levels of substrate which enclose a wellbore casing. Said apparatus comprises a primary cement discharge port, and one or more secondary or lateral cement discharge ports. A sleeve is operably carried in the apparatus, being adjustable to close the secondary lateral port when a cementing operation is completed. A sleeve actuating tool is cooperative with said cementing apparatus, being remotely operable to close the lateral cement discharge port to assure that no communication exists between the cementing apparatus and the wellbore after the cementing operation is completed.
    Type: Grant
    Filed: January 17, 1989
    Date of Patent: July 17, 1990
    Assignee: Texaco Inc.
    Inventors: Gary L. Porter, William B. Cade
  • Manual port closing tool for well cementing
    Patent number: 4850432
    Abstract: In a downhole staging apparatus for delivering fluidized cement sequentially into two levels of substrate which enclose a wellbore casing. Said apparatus comprises a primary cement discharge port, and one or more secondary or lateral cement discharge ports. A sleeve is operably carried in the apparatus, being adjustable to close the secondary lateral port when a cementing operation is completed. A sleeve actuating tool is cooperative with said cementing apparatus, being remotely operable to close the lateral cement discharge port to assure that no communication exists between the cementing apparatus and the wellbore after the cementing operation is completed.
    Type: Grant
    Filed: October 17, 1988
    Date of Patent: July 25, 1989
    Assignee: Texaco Inc.
    Inventors: Gary L. Porter, William B. Cade