Patents by Inventor Jean-Pierre Marielle

Jean-Pierre Marielle 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).

  • Publication number: 20110020160
    Abstract: A progressing cavity pump comprises a stator having an inlet end for coupling to a fluid-receiving casing, the pump including an anchor element suitable for fastening the inlet end of the stator on a stationary support, and said inlet end and said anchor element including locking means for locking them together in rotation.
    Type: Application
    Filed: July 19, 2010
    Publication date: January 27, 2011
    Applicant: PCM
    Inventors: Jean Paul Wautelet, Jean-Pierre Marielle
  • Patent number: 7473082
    Abstract: Pumping system comprising: a progressive cavity pump comprising a helical rotor inside a helical cavity of an outer stator; motor for driving the rotor, with a motor shaft coaxial to the axis of the stator cavity; and an intermediate shaft coupled, at its ends, by respective couplings, to the rotor shaft and to the motor shaft. Two devices consisting of two of these connected parts are constructed as a male device terminated by an axial stub and a female device terminated by an axial housing receiving the stub, at least two radial screws, not aligned, one of which is a cone-point set screw, connected the stub to the female device.
    Type: Grant
    Filed: October 17, 2005
    Date of Patent: January 6, 2009
    Assignee: PCM Pompes
    Inventor: Jean-Pierre Marielle
  • Publication number: 20060083637
    Abstract: Pumping system comprising: a progressive cavity pump comprising a helical rotor inside a helical cavity of an outer stator; motor means for driving the rotor, with a motor shaft coaxial to the axis of the stator cavity; and an intermediate shaft coupled, at its ends, by respective couplings, to the rotor shaft and to the motor shaft. Two devices (A, B) consisting of two of these connected parts are constructed as a male device (A) terminated by an axial stub (17) and a female device (B) terminated by an axial housing (18) receiving the stub, at least two radial screws (22, 23), not aligned, one of which is a cone-point set screw (22), connected the stub (17) to the female device (B).
    Type: Application
    Filed: October 17, 2005
    Publication date: April 20, 2006
    Inventor: Jean-Pierre Marielle
  • Patent number: 6962489
    Abstract: A pumping device is provided which comprises a Moineau pump with a helical rotor inside a helical cavity of a stator, driver means, and a drive connecting rod coupled by a respective coupling to a driving shaft of the driver and to one end of the rotor. Each coupling comprises a spherical head secured to the connecting rod and housed in a cavity that is cylindrical of revolution with the same diameter as and secured coaxially to the end of the rotor of the driving shaft; and a ball housed partly in a cup of the spherical head with its axis perpendicular to the axis of the connecting rod and partly in a lateral recess of the cavity.
    Type: Grant
    Filed: November 6, 2002
    Date of Patent: November 8, 2005
    Assignee: PCM Pompes
    Inventors: Jean-Pierre Marielle, Jean-Paul Wautelet
  • Publication number: 20040131491
    Abstract: Pumping device comprising: a Moineau pump (1) with a helical rotor (2) inside a helical cavity of a stator; drive means; and a drive connecting rod (5) coupled by respective coupling means (6, 7) to a driving shaft (3) of the drive means and to one end of the rotor (2). Each coupling means comprises: a spherical head (12) secured to the connecting rod (5) and housed in a cavity (14) that is cylindrical of revolution with the same diameter as and secured coaxially to the end of the rotor (2)/of the driving shaft (3); and a ball (15) housed partly in a cup (16) of the spherical head (15) with its axis perpendicular to the axis of the connecting rod (5) and partly in a lateral recess (19) of the cavity (14).
    Type: Application
    Filed: November 6, 2002
    Publication date: July 8, 2004
    Inventors: Jean-Pierre Marielle, Jean-Paul Wautelet