Patents by Inventor Edward R. Swift, Jr.

Edward R. Swift, 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).

  • Filters used in well fluid cleaning operations
    Patent number: 4456061
    Abstract: A cylindrical housing is adapted to receive and discharge fluid in a subterranean well. In a preferred form, a plate is positioned in the cylinder separating it into first and second chambers. Filter adapter receiving means are disposed across the plate, with a filter adapter securable therein, the adapter having a passageway extending to the chambers. The adapter has a cylindrical housing having an enlarged cartridge positioning portion. A grooveway is defined on the adapter extending exteriorly therearound for securing one end of a secondary cartridge filter. A secondary cartridge filter has an inner filter completely surrounded by a replaceable and reuseable primary sleeve filter and is positionable on the adapter, the filter providing a seal having an interiorly facing circumferentially extending lip for contact with the exterior of the cylindrical housing when the filter is located on the adapter, for sealingly securing the filter to the adapter.
    Type: Grant
    Filed: August 31, 1981
    Date of Patent: June 26, 1984
    Assignee: Baker International Corporation
    Inventors: Edward R. Swift, Jr., John B. Echols
  • Method and apparatus for quick replacement of cartridge filters used in well fluid cleaning operations
    Patent number: 4421170
    Abstract: A cylindrical housing is adapted to receive and discharge fluid in a subterranean well. In a preferred form, a plate is positioned in the cylinder separating it into first and second chambers. Filter adapter receiving means are disposed across the plate, with a filter adapter securable therein, the adapter having a passageway extending to the chambers. The adapter has a cylindrical housing having an enlarged cartridge positioning portion. A grooveway is defined on the adapter extending exteriorly therearound for securing one end of a cartridge filter. A cartridge filter is positionable on the adapter and provides a seal having an interiorly facing circumferentially extending lip for contact with the exterior of the cylindrical housing when the filter is located on the adapter, for sealingly securing the filter to the adapter.
    Type: Grant
    Filed: October 2, 1981
    Date of Patent: December 20, 1983
    Assignee: Baker International Corporation
    Inventors: Edward R. Swift, Jr., Philip W. Schmuck
  • Method and apparatus for quick replacement of cartridge filters used in well fluid cleaning operations
    Patent number: 4295525
    Abstract: A cylindrical housing is adapted to receive and discharge fluid in a subterranean well. In a preferred form, a plate is positioned in the cylinder separating it into first and second chambers. Filter adapter receiving means are disposed across the plate, with a filter adapter securable therein, the adapter having a passageway extending to the chambers. The adapter has a cylindrical housing having an enlarged cartridge positioning portion. A grooveway is defined on the adapter extending exteriorly therearound for securing one end of a cartridge filter. A cartridge filter is positionable on the adapter and provides a seal having an interiorly facing circumferentially extending lip for contact with the exterior of the cylindrical housing when the filter is located on the adapter, for sealingly securing the filter to the adapter.
    Type: Grant
    Filed: February 6, 1980
    Date of Patent: October 20, 1981
    Assignee: Baker International Corporation
    Inventors: Edward R. Swift, Jr., Philip W. Schmuck