Patents by Inventor Albert De Pont

Albert De Pont 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).

  • Pipe-gripping structure having load rings
    Patent number: 6845814
    Abstract: A rotary slip for supporting a drill string having a plurality of slip segments connected to define an opening for insertion of the drill string, wherein each slip segment comprises a head region, a toe region, and an inner radial surface axially extending between the head and toe regions, and wherein the inner radial surface of each slip segment comprises a circumferential groove. A plurality of axially aligned drill string gripping inserts are attached to each slip segment between the head region and the circumferential groove, wherein each insert comprises a gripping surface for contacting the drill string. A load ring is disposed within the circumferential groove of each slip element, the load ring comprising at least one securing element which is engaged by one of the plurality of axially aligned inserts to secure the load ring within the circumferential groove.
    Type: Grant
    Filed: January 3, 2003
    Date of Patent: January 25, 2005
    Assignee: Varco I/P, Inc.
    Inventors: David Mason, Albert De Pont, Hans Van Rijzingen, Anton Krijnen, Cornelis De Laat
  • Pipe-gripping structure having load rings
    Publication number: 20030173117
    Abstract: A rotary slip for supporting a drill string having a plurality of slip segments connected to define an opening for insertion of the drill string, wherein each slip segment comprises a head region, a toe region, and an inner radial surface axially extending between the head and toe regions, and wherein the inner radial surface of each slip segment comprises a circumferential groove. A plurality of axially aligned drill string gripping inserts are attached to each slip segment between the head region and the circumferential groove, wherein each insert comprises a gripping surface for contacting the drill string. A load ring is disposed within the circumferential groove of each slip element, the load ring comprising at least one securing element which is engaged by one of the plurality of axially aligned inserts to secure the load ring within the circumferential groove.
    Type: Application
    Filed: January 3, 2003
    Publication date: September 18, 2003
    Inventors: David Mason, Albert De Pont, Hans Van Rijzingen, Anton Krijnen, Cornelis De Laat