Patents by Inventor Xuan Bui

Xuan Bui 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: 20070120304
    Abstract: A multi-axis chuck that rotates about at least two axes. Preferably, the axes are perpendicular. The multi-axis chuck includes a first portion, second portion, and third portion. Rear sides of the first portion and the second portion have a first mating portion that mates with a second mating portion provided on the second portion and the third portion, respectively. The mating portions enable the first portion and the second portion to be rotated about the axes. Preferably, the first portion rotates about a first axis independently of the second and third portions. Rotation of the second portion about a second axis preferably also rotates the first portion about the second axis. The multi-chuck is operatively connected to a motor, controller, and sensors. A user inputs a desired position into the controller that controls the motor. The motor rotates the multi-axis chuck to the desired position. The sensors are used to determine a position of the multi-axis chuck.
    Type: Application
    Filed: January 29, 2007
    Publication date: May 31, 2007
    Inventors: Xuan Bui, Michael Yang, Gilles Lefebvre
  • Publication number: 20060169719
    Abstract: A manifold assembly that directs fluid to and from individually selectable sample receiving trays of a tissue processing system includes a manifold, fluid conduits machined in the manifold, and valves that may be selectively configured to provide a direct fluid path to or from a particular tray. The valves are controlled by a controller that positions each valve such that a desired path is created. Pressure is created in supply and/or drain bottles to supply or drain fluid from the trays supported by the manifold assembly. Independently operated heaters are provided on the manifold assembly to heat the trays to desired temperatures. Thermoelectric cooling elements may also provided to cool the heaters and/or trays.
    Type: Application
    Filed: February 6, 2006
    Publication date: August 3, 2006
    Inventor: Xuan Bui
  • Publication number: 20060171857
    Abstract: A sample, or slide, retaining tray includes a reagent reservoir, or recess, and a reaction chamber. A slide, or other sample container, can be positioned on the sample retaining tray as desired, with a tissue specimen face down, between a platen on the tray and the slide. A reagent from the reservoir is rendered flowable, such as by heating, and flows from the reservoir into the reaction chamber. Optionally, reagents or other fluids can be provided from above, by dripping onto a drip surface of the sample retaining tray, or below via an inlet port in the platen.
    Type: Application
    Filed: February 3, 2006
    Publication date: August 3, 2006
    Inventors: Ronald Stead, Xuan Bui
  • Publication number: 20050161873
    Abstract: A multi-axis chuck that rotates about at least two axes. Preferably, the axes are perpendicular. The multi-axis chuck includes a first portion, second portion, and third portion. Rear sides of the first portion and the second portion have a first mating portion that mates with a second mating portion provided on the second portion and the third portion, respectively. The mating portions enable the first portion and the second portion to be rotated about the axes. Preferably, the first portion rotates about a first axis independently of the second and third portions. Rotation of the second portion about a second axis preferably also rotates the first portion about the second axis. The multi-chuck is operatively connected to a motor, controller, and sensors. A user inputs a desired position into the controller that controls the motor. The motor rotates the multi-axis chuck to the desired position. The sensors are used to determine a position of the multi-axis chuck.
    Type: Application
    Filed: January 22, 2004
    Publication date: July 28, 2005
    Inventors: Xuan Bui, Michael Yang, Gilles Lefebvre
  • Patent number: 6386662
    Abstract: A depositor accommodating substantially thicker deposits than was possible with prior systems. A pair of plates each having a transport mechanism disposed as part thereof are coupled to a housing so as to abut each other, one above the other, in a rest position. A drive shaft for the transport mechanisms of the upper and lower plates are rotatably coupled to the housing and define an axis of rotation for each plate. The drive shaft for the top plate is disposed at an opposite end from the drive shaft of the bottom plate. A free end of each plate, the end opposite the drive shaft, is elastically coupled to the housing. This allows a substantially thicker deposit envelope to be accepted than was possible with prior systems.
    Type: Grant
    Filed: February 3, 1997
    Date of Patent: May 14, 2002
    Assignee: Citicorp Development Center, Inc.
    Inventor: Xuan Bui