Patents by Inventor Oleg Gratchev

Oleg Gratchev 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: 7160105
    Abstract: A temperature controllable vacuum chuck includes a mounting bracket, a porous plate, a heating element, and a temperature sensor. The porous plate is mounted to the mounting bracket and is configured for securing a substrate to the vacuum chuck when air is suctioned out of the vacuum chuck. The heating element is attached to the bottom of the porous plate and uniformly heats the porous plate, thereby heating any substrate mounted on the vacuum chuck and enabling control over the cure rate of fluid materials deposited on the substrate. The temperature sensor measures the temperature of the porous plate so that it can be adjusted when desired with a user controllable temperature control component.
    Type: Grant
    Filed: May 31, 2002
    Date of Patent: January 9, 2007
    Assignee: Litrex Corporation
    Inventors: Charles O. Edwards, David Albertalli, Oleg Gratchev
  • Patent number: 6836949
    Abstract: An apparatus for mounting a sleeve on a spindle includes a frame, and a finger arrangement movably mounted on the frame, the finger arrangement including a plurality of fingers arranged at a common first radius around an imaginary centerline of the finger arrangement, the fingers being movable radially outwardly from the first radius to a second radius upon application of an outwardly directed force. A sleeve having an internal opening in which the fingers are disposed is adapted to be mounted on a stationary spindle by movement of the finger arrangement on the frame toward the spindle. A method for mounting a sleeve on a spindle is also disclosed.
    Type: Grant
    Filed: April 2, 2002
    Date of Patent: January 4, 2005
    Assignee: Tooltek Engineering Corporation
    Inventors: Hooshang Jahani, Scott R. Bruner, Oleg Gratchev
  • Publication number: 20040238522
    Abstract: A temperature controllable vacuum chuck includes a mounting bracket, a porous plate, a heating element, and a temperature sensor. The porous plate is mounted to the mounting bracket and is configured for securing a substrate to the vacuum chuck when air is suctioned out of the vacuum chuck. The heating element is attached to the bottom of the porous plate and uniformly heats the porous plate, thereby heating any substrate mounted on the vacuum chuck and enabling control over the cure rate of fluid materials deposited on the substrate. The temperature sensor measures the temperature of the porous plate so that it can be adjusted when desired with a user controllable temperature control component.
    Type: Application
    Filed: November 26, 2003
    Publication date: December 2, 2004
    Inventors: Charles O. Edwards, David Albertalli, Oleg Gratchev
  • Publication number: 20040231594
    Abstract: A microdeposition apparatus and method according to the invention deposits a fluid manufacturing material on a substrate to form microstructures. The apparatus includes a microdeposition head mounted on a head support and held above a substrate, which is mounted on a stage in controlled alignment with the microdeposition head. A control system moves the stage, and thus the substrate, while the fluid manufacturing materials is discharged from the microdeposition head. A diagnostics assembly ensures the nozzles of the microdeposition head are firing correctly. A maintenance station cleans the nozzles of the microdeposition head when needed. A capping station and a docking station hold the microdeposition head during periods of nonuse. A mounting bracket and computer system enable various microdeposition heads to be interchangeably used with the microdeposition apparatus.
    Type: Application
    Filed: June 15, 2004
    Publication date: November 25, 2004
    Inventors: Charles O. Edwards, David Albertalli, Scott R. Bruner, James Middleton, Howard Walter Bielich, Oleg Gratchev
  • Publication number: 20020144391
    Abstract: An apparatus for mounting a sleeve on a spindle includes a frame, and a finger arrangement movably mounted on the frame, the finger arrangement including a plurality of fingers arranged at a common first radius around an imaginary centerline of the finger arrangement, the fingers being movable radially outwardly from the first radius to a second radius upon application of an outwardly directed force. A sleeve having an internal opening in which the fingers are disposed is adapted to be mounted on a stationary spindle by movement of the finger arrangement on the frame toward the spindle. A method for mounting a sleeve on a spindle is also disclosed.
    Type: Application
    Filed: April 2, 2002
    Publication date: October 10, 2002
    Inventors: Hooshang Jahani, Scott R. Bruner, Oleg Gratchev
  • Patent number: 6363594
    Abstract: An apparatus for mounting a sleeve on a spindle includes a frame, and a finger arrangement movably mounted on the frame, the finger arrangement including a plurality of fingers arranged at a common first radius around an imaginary centerline of the finger arrangement, the fingers being movable radially outwardly from the first radius to a second radius upon application of an outwardly directed force. A sleeve having an internal opening in which the fingers are disposed is adapted to be mounted on a stationary spindle by movement of the finger arrangement on the frame toward the spindle. A method for mounting a sleeve on a spindle is also disclosed.
    Type: Grant
    Filed: December 21, 1999
    Date of Patent: April 2, 2002
    Assignee: Tooltek Engineering Corporation
    Inventors: Hooshang Jahani, Scott R. Bruner, Oleg Gratchev