Patents by Inventor Hans-Bernd Luft

Hans-Bernd Luft 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).

  • Composite low cycle fatigue coiled tubing connector
    Patent number: 7562909
    Abstract: A coiled tubing connector having a body and a plurality of entry or transition sections connected to the body wherein the connector has a low cycle fatigue life of at least 30%, more preferably at least 50% of the coiled tubing. A preferred embodiment contains two shoulders that form an annular void, a plurality of centralizers about an exterior of the body, and/or a plurality of elastomer molds separating the centralizers. The connector is preferably longer than the connectors of the prior art and is a composite of fluoroplastics or aluminum alloys.
    Type: Grant
    Filed: December 22, 2005
    Date of Patent: July 21, 2009
    Assignee: BJ Services Company
    Inventors: Hans-Bernd Luft, Lyle Erwin Laun
  • Composite low cycle fatigue coiled tubing connector
    Publication number: 20060157974
    Abstract: A coiled tubing connector having a body and a plurality of entry or transition sections connected to the body wherein the connector has a low cycle fatigue life of at least 30%, more preferably at least 50% of the coiled tubing. A preferred embodiment contains two shoulders that form an annular void, a plurality of centralizers about an exterior of the body, and/or a plurality of elastomer molds separating the centralizers. The connector is preferably longer than the connectors of the prior art and is a composite of fluoroplastics or aluminum alloys.
    Type: Application
    Filed: December 22, 2005
    Publication date: July 20, 2006
    Inventors: Hans-Bernd Luft, Lyle Laun
  • Composite low cycle fatigue coiled tubing connector
    Publication number: 20040184871
    Abstract: A coiled tubing connector having a body and a plurality of entry or transition sections connected to the body wherein the connector has a low cycle fatigue life of at least 30%, more preferably at least 50% of the coiled tubing. A preferred embodiment contains two shoulders that form an annular void, a plurality of centralizers about an exterior of the body, and/or a plurality of elastomer molds separating the centralizers. The connector is preferably longer than the connectors of the prior art and is a composite of fluoroplastics or aluminum alloys.
    Type: Application
    Filed: March 21, 2003
    Publication date: September 23, 2004
    Inventors: Hans-Bernd Luft, Lyle Erwin Laun