Patents by Inventor John E. Gotheridge

John E. Gotheridge 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).

  • Sealing riser sleeve
    Patent number: 6640874
    Abstract: A riser sleeve apparatus (10) for preparing and insulating a passage (14) within which molten metal is accumulated prior to its movement into a mold cavity which includes an inner surface (12) which longitudinally extends between a first end (16) and a second end (18) wherein the inner surface bounds the passage. The riser sleeve further includes an annular lip (20) which is positioned adjacent the second end and extends inward into the passage. When the riser sleeve is positioned about a plug of a pattern, the annular lip deforms to seal the passage at the second end. A process for forming a cast metal article using said riser sleeve apparatus. A process for forming the riser sleeve apparatus.
    Type: Grant
    Filed: February 22, 2002
    Date of Patent: November 4, 2003
    Assignee: American Metal Chemical Corporation
    Inventors: Jay A. Vorndran, John E. Gotheridge
  • Sealing riser sleeve
    Publication number: 20020079080
    Abstract: A riser sleeve apparatus (10) for preparing and insulating a passage (14) within which molten metal is accumulated prior to its movement into a mold cavity which includes an inner surface (12) which longitudinally extends between a first end (16) and a second end (18) wherein the inner surface bounds the passage. The riser sleeve further includes an annular lip (20) which is positioned adjacent the second end and extends inward into the passage. When the riser sleeve is positioned about a plug of a pattern, the annular lip deforms to seal the passage at the second end. A process for forming a cast metal article using said riser sleeve apparatus. A process for forming the riser sleeve apparatus.
    Type: Application
    Filed: February 22, 2002
    Publication date: June 27, 2002
    Applicant: American Metal Chemical Corporation
    Inventors: Jay A. Vorndran, John E. Gotheridge
  • Sealing riser sleeve
    Patent number: 6352100
    Abstract: A riser sleeve apparatus (10) for preparing and insulating a passage (14) within which molten metal is accumulated prior to its movement into a mold cavity which includes an inner surface (12) which longitudinally extends between a first end (16) and a second end (18) wherein the inner surface bounds the passage. The riser sleeve further includes an annular lip (20) which is positioned adjacent the second end and extends inward into the passage. When the riser sleeve is positioned about a plug of a pattern, the annular lip deforms to seal the passage at the second end.
    Type: Grant
    Filed: April 20, 2000
    Date of Patent: March 5, 2002
    Assignee: American Metal Chemical Corporation
    Inventors: Jay A. Vorndran, John E. Gotheridge
  • Method of sealing using a riser sleeve
    Patent number: 6349757
    Abstract: A process of positioning a riser sleeve about a plug of a mold cavity pattern. The riser sleeve is positioned to engage the plug to prevent sand from entering the interstitial space between the riser sleeve and the plug. The riser sleeve may comprise a deformable annular lip for engagement with the perimeter of the plug. The riser sleeve may engage the plug in sealing relationship.
    Type: Grant
    Filed: April 20, 2000
    Date of Patent: February 26, 2002
    Assignee: American Metal Chemical Corporation
    Inventors: Jay A. Vorndran, John E. Gotheridge
  • Sealing riser sleeve
    Patent number: 6209617
    Abstract: A riser sleeve apparatus (10) for preparing and insulating a passage (14) within which molten metal is accumulated prior to its movement into a mold cavity which includes an inner surface (12) which longitudinally extends between a first end (16) and a second end (18) wherein the inner surface bounds the passage. The riser sleeve further includes an annular lip (20) which is positioned adjacent the second end and extends inward into the passage. When the riser sleeve is positioned about a plug of a pattern, the annular lip deforms to seal the passage at the second end. A process for forming a cast metal article using the riser sleeve apparatus. A process for forming the riser sleeve apparatus using a vacuum forming technique.
    Type: Grant
    Filed: November 4, 1997
    Date of Patent: April 3, 2001
    Assignee: American Metal Chemical Corporation
    Inventors: Jay A. Vorndran, John E. Gotheridge