Patents by Inventor Granison T. Alexander, Jr.

Granison T. Alexander, Jr. 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).

  • Well bore cleaning tool
    Patent number: 4750558
    Abstract: A well bore cleaning tool comprises a plurality of collars which slip onto a pipe casing without welding, and can be securedly attached thereto using any conventional securing means, such as set screws. The collars are interconnected with a cable, disposed longitudinally on one side of the casing, substantially in a straight line. The well bore cleaning tool has utility in bore holes wherein there is a limited clearance or amount of space in the annulus (that is, the region between the exterior of the casing and the wall of the bore hole).
    Type: Grant
    Filed: June 30, 1986
    Date of Patent: June 14, 1988
    Inventor: Granison T. Alexander, Jr.
  • Oil well bailer apparatus
    Patent number: 4368909
    Abstract: An oil well bailer apparatus for use in bailing oil from an oil well. It includes a housing adapted for mounting over the top of the wellhead and a bail bucket which is arranged for lowering and raising between the well and the housing for raising oil to the housing and depositing it at the wellhead surface.
    Type: Grant
    Filed: March 30, 1981
    Date of Patent: January 18, 1983
    Assignee: Chromalloy American Corporation
    Inventor: Granison T. Alexander, Jr.
  • Well bore cleaning tool
    Patent number: 4159742
    Abstract: A well bore cleaning tool adapted for attachment to a casing tubing or drill pipe or the like which is to be run into a well bore for cleaning the well bore during reciprocation and/or rotation of the pipe, which includes a plurality of collars adapted to be attached in axially spaced apart fashion to the pipe and lengths of cable connected to and extending between each of the collars, wherein the cables spiral about the pipe in a helical fashion and form a plurality of outwardly bowed helical portions to contact the well bore.
    Type: Grant
    Filed: December 27, 1977
    Date of Patent: July 3, 1979
    Assignee: Chromalloy American Corporation
    Inventor: Granison T. Alexander, Jr.