Patents by Inventor Xuan Mai Tu

Xuan Mai Tu 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).

  • Patent number: 11112758
    Abstract: The invention relates to an escapement device (400) comprising a first escapement wheel (1), a second escapement wheel (2), and a brake-lever (3), said second escapement wheel being disposed between the first escapement wheel and the brake-lever, in particular the second escapement wheel coming into contact and engaging with both the first escapement wheel and the brake-lever.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: September 7, 2021
    Assignee: DETRA SA
    Inventor: Xuan Mai Tu
  • Patent number: 10905287
    Abstract: An appliance to foam a liquid for consumption, the appliance comprising: a container mounting portion to mount thereto a container to contain said liquid; an agitation system configured to foam said liquid, said system comprising a stator arranged external a mounted container, said stator configured to generate a rotating magnetic field for transmission of torque to rotate a rotary agitator arranged in a mounted container, wherein said stator comprises at a circuit board with electrically conductive portions formed thereon.
    Type: Grant
    Filed: July 8, 2016
    Date of Patent: February 2, 2021
    Assignee: Societe des Produits Nestle S.A.
    Inventors: Xuan Mai Tu, Luan Vu Tran, Alexa Perrin
  • Patent number: 10702835
    Abstract: A stator operable to generate a rotating magnetic field for an electrical rotating machine, the stator comprising at least one circuit board with electrically conductive portions formed thereon, the electrically conductive portions connected with a multiphase configuration, wherein a phase comprises: on a first face of the circuit board(s) electrically conductive portions arranged as a plurality of elements, an element comprising a radially extending radial portion having: connected at a proximal end thereof a proximal portion, the proximal portion extending therefrom with a directional component in a first angular direction; and connected at a distal end thereof a distal portion, the distal portion extending therefrom with a directional component in a second opposed angular direction, whereby proximal and distal are defined relative the centre of rotation of the magnetic field and said angular direction is defined about said centre of rotation; and on a second face of the circuit board(s) electrically conduc
    Type: Grant
    Filed: July 8, 2016
    Date of Patent: July 7, 2020
    Assignee: Societe des Produits Nestle S.A.
    Inventors: Luan Vu Tran, Xuan Mai Tu, Alexa Perrin
  • Publication number: 20180373201
    Abstract: The invention relates to an escapement device (400) comprising a first escapement wheel (1), a second escapement wheel (2), and a brake-lever (3), said second escapement wheel being disposed between the first escapement wheel and the brake-lever, in particular the second escapement wheel coming into contact and engaging with both the first escapement wheel and the brake-lever.
    Type: Application
    Filed: December 21, 2016
    Publication date: December 27, 2018
    Applicant: DETRA SA
    Inventor: Xuan Mai Tu
  • Publication number: 20180236413
    Abstract: A stator operable to generate a rotating magnetic field for an electrical rotating machine, the stator comprising at least one circuit board with electrically conductive portions formed thereon, the electrically conductive portions connected with a multiphase configuration, wherein a phase comprises: on a first face of the circuit board(s) electrically conductive portions arranged as a plurality of elements, an element comprising a radially extending radial portion having: connected at a proximal end thereof a proximal portion, the proximal portion extending therefrom with a directional component in a first angular direction; and connected at a distal end thereof a distal portion, the distal portion extending therefrom with a directional component in a second opposed angular direction, whereby proximal and distal are defined relative the centre of rotation of the magnetic field and said angular direction is defined about said centre of rotation; and on a second face of the circuit board(s) electrically conduc
    Type: Application
    Filed: July 8, 2016
    Publication date: August 23, 2018
    Inventors: Luan Vu Tran, Xuan Mai Tu, Alexa Perrin
  • Publication number: 20180206678
    Abstract: An appliance to foam a liquid for consumption, the appliance comprising: a container mounting portion to mount thereto a container to contain said liquid; an agitation system configured to foam said liquid, said system comprising a stator arranged external a mounted container, said stator configured to generate a rotating magnetic field for transmission of torque to rotate a rotary agitator arranged in a mounted container, wherein said stator comprises at a circuit board with electrically conductive portions formed thereon.
    Type: Application
    Filed: July 8, 2016
    Publication date: July 26, 2018
    Inventors: Xuan Mai Tu, Luan Vu Tran, Alexa Perrin
  • Patent number: 9323220
    Abstract: The invention relates to a timepiece fitted with a lever escapement wherein the end of contact angles ?1 and ?2 between the pallet stones and the escapement wheel are respectively higher than the locking-angles ?2 and ?1 of the two locking positions of the lever. This escapement requires neither adjustment nor final alteration of the position of the pallet stones.
    Type: Grant
    Filed: November 14, 2013
    Date of Patent: April 26, 2016
    Assignee: DETRA SA
    Inventor: Xuan Mai Tu
  • Publication number: 20150301501
    Abstract: The invention relates to a timepiece fitted with a lever escapement wherein the end of contact angles ?1 and ?2 between the pallet stones and the escapement wheel are respectively higher than the locking-angles ?2 and ?1 of the two locking positions of the lever. This escapement requires neither adjustment nor final alteration of the position of the pallet stones.
    Type: Application
    Filed: November 14, 2013
    Publication date: October 22, 2015
    Applicant: Detra SA
    Inventor: Xuan Mai Tu
  • Patent number: 9052694
    Abstract: Escapement device of a timepiece movement includes an escapement wheel, a first mobile having means of locking with the escapement wheel and of mechanical transmission with the escapement wheel, a second mobile and the balance roller. The second mobile has means of locking with the escapement wheel and means of mechanical transmission with the escapement wheel and the first mobile. The mobiles are driven by the escapement wheel tangentially.
    Type: Grant
    Filed: June 7, 2012
    Date of Patent: June 9, 2015
    Assignee: DETRA SA
    Inventor: Xuan Mai Tu
  • Publication number: 20150131414
    Abstract: Escapement device of a timepiece movement includes an escapement wheel, a first mobile having means of locking with the escapement wheel and of mechanical transmission with the escapement wheel, a second mobile and the balance roller. The second mobile has means of locking with the escapement wheel and means of mechanical transmission with the escapement wheel and the first mobile. The mobiles are driven by the escapement wheel tangentially.
    Type: Application
    Filed: June 7, 2012
    Publication date: May 14, 2015
    Applicant: DETRA SA
    Inventor: Xuan Mai Tu
  • Publication number: 20110270025
    Abstract: A remotely adjustable remotely power gastric band system may include a control device, an implant electronic device, and an implantable gastric band. The control device may telemetrically power and communicate with the implant electronic device, which may be used for adjusting the diameter of the implantable gastric band. The implant electronic device may store the gastric band adjustment history records of a patient and regulate the power received from the control device. To improve transmission efficiency, the implant electronic device may adopt a double modulation scheme for communicating with the control device. Furthermore, the implant electronic device may detect and resolve motor blockage issues related to the implantable gastric band.
    Type: Application
    Filed: March 30, 2011
    Publication date: November 3, 2011
    Applicant: ALLERGAN, INC.
    Inventors: Pierre Fridez, Alain Jordan, Jean-Charles Montavon, Tiago Bertolote, Laurent Mosimann, Xavier Raemy, Razack Osseni, Xuan Mai Tu, Joël Bonny
  • Patent number: 7891862
    Abstract: The electromechanical escapement device is associated with an electronic circuit having a quartz oscillator and calculation means suitable for calculating the difference between the period of the quartz oscillator and the period of a mechanical oscillator and releasing an escape wheel, normally controlled by said mechanical oscillator, when the difference between said periods is greater than a threshold value.
    Type: Grant
    Filed: July 18, 2007
    Date of Patent: February 22, 2011
    Assignee: Isa France S.A.
    Inventors: Xuan Mai Tu, Michel Schwab
  • Publication number: 20090185456
    Abstract: The electromechanical escapement device is associated with an electronic circuit having a quartz oscillator and calculation means suitable for calculating the difference between the period of the quartz oscillator and the period of a mechanical oscillator and releasing an escape wheel, normally controlled by said mechanical oscillator, when the difference between said periods is greater than a threshold value.
    Type: Application
    Filed: July 18, 2007
    Publication date: July 23, 2009
    Inventors: Xuan Mai Tu, Michel Schwab
  • Patent number: 6712500
    Abstract: The invention concerns an escapement device comprising a power source capable of delivering a variable torque based on the angle of rotation of a pinion fixed to said power source, said variable torque having at least a stable position and an unstable position. The device further comprises locking means capable of locking power transmission to an oscillator in a stable point of equilibrium and unlocking means capable of unlocking power transmission to said oscillator between a stable point of equilibrium and an unstable point of equilibrium.
    Type: Grant
    Filed: October 8, 2002
    Date of Patent: March 30, 2004
    Assignee: Detra SA
    Inventors: Xuan-Mai Tu, Michel Schwab
  • Publication number: 20030090962
    Abstract: The invention concerns an escapement device comprising a power source capable of delivering a variable torque based on the angle of rotation of a pinion fixed to said power source, said variable torque having at least a stable position and an unstable position. The device further comprises locking means capable of locking power transmission to an oscillator in a stable point of equilibrium and unlocking means capable of unlocking power transmission to said oscillator between a stable point of equilibrium and an unstable point of equilibrium.
    Type: Application
    Filed: October 8, 2002
    Publication date: May 15, 2003
    Inventors: Xuan-Mai Tu, Michel Schwab
  • Patent number: 6335619
    Abstract: An inductive proximity sensor that uses a resonant oscillatory circuit to detect a target by changes to inductive reaction. The oscillating circuit has primary and secondary windings where a capacitor and load resistance are connected in parallel with the primary winding, the value of the load resistance is selected so that in a state of oscillation the ohmic losses in the load resistance are substantially higher than the ohmic losses in the primary winding, and the primary and secondary windings are disposed so that the mutual flux between the primary and secondary windings is substantially less than the particular flux of each winding.
    Type: Grant
    Filed: February 14, 2000
    Date of Patent: January 1, 2002
    Assignee: Detra SA
    Inventors: Michel Schwab, Xuan Mai Tu