Patents by Inventor Nicu Cioceanu

Nicu Cioceanu 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).

  • Bent bearing assembly for downhole mud motor
    Patent number: 8721182
    Abstract: A downhole drilling assembly which includes a drill bit assembly, and a mud motor, and a bearing assembly disposed between the drill bit assembly and the mud motor, wherein the bearing assembly includes an offset portion.
    Type: Grant
    Filed: October 3, 2011
    Date of Patent: May 13, 2014
    Inventor: Nicu Cioceanu
  • BENT BEARING ASSEMBLY FOR DOWNHOLE MUD MOTOR
    Publication number: 20130051716
    Abstract: A downhole drilling assembly which includes a drill bit assembly, and a mud motor, and a bearing assembly disposed between the drill bit assembly and the mud motor, wherein the bearing assembly includes an offset portion.
    Type: Application
    Filed: October 3, 2011
    Publication date: February 28, 2013
    Inventor: Nicu CIOCEANU
  • Bearing assembly for downhole mud motor
    Patent number: 7500787
    Abstract: A bearing assembly for use with a mud motor includes a two-piece mandrel and a housing. Two radial bearings and a triple stack axial thrust on-bottom bearing are disposed between the mandrel and housing.
    Type: Grant
    Filed: August 31, 2006
    Date of Patent: March 10, 2009
    Inventor: Nicu Cioceanu
  • ADJUSTABLE BENT HOUSING WITH SINGLE OFFSET
    Publication number: 20080197732
    Abstract: An adjustable bent housing comprises a stator connector, an adjustable housing having a first axial deviation and a first offset point and a plurality of spaced teeth, a crown which is disposed between the stator connector and the adjustable housing, and has a plurality of spaced teeth which are complementary to the adjustable housing teeth, means for rotatably engaging the crown to the stator connector and a slotted mandrel disposed within the crown and having a threaded connection to the stator connector at one end, and a threaded connection to the adjustable housing at the other end. The slotted mandrel has a second axial deviation and a second offset point The first offset point and the second offset point are aligned when the adjustable bent housing is assembled, creating a single offset point.
    Type: Application
    Filed: February 16, 2007
    Publication date: August 21, 2008
    Inventor: Nicu CIOCEANU
  • BEARING ASSEMBLY FOR DOWNHOLE MUD MOTOR
    Publication number: 20080190669
    Abstract: A bearing assembly for use with a mud motor includes a two-piece mandrel and a housing. Two radial bearings and a triple stack axial thrust on-bottom bearing are disposed between the mandrel and housing.
    Type: Application
    Filed: August 31, 2006
    Publication date: August 14, 2008
    Inventor: Nicu Cioceanu