Patents by Inventor Robin Hsu

Robin Hsu 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: 6542709
    Abstract: A developer container having a gear transmission mechanism coupled between a mixer, which is mounted inside the container body of the developer container to mix developer, and a propelling screw, which is mounted in a developer supply trough at a bottom side of the developer container and adapted to propel developer out of the developer container and the developer supply trough, for enabling the mixer to be rotated to mix developer upon rotary motion of the propelling screw to propel developer out of the developer supply trough.
    Type: Grant
    Filed: October 1, 2001
    Date of Patent: April 1, 2003
    Assignee: General Plastic Industrial Co., Ltd.
    Inventors: Jui-Chi Wang, Robin Hsu, Ching Yu Huang, Li Kuan Tung
  • Publication number: 20030049052
    Abstract: A developer container in which the container body has an inwardly protruded spiral guide flange spirally forwardly extended to a developer supply port and defining a spiral flow guide way adapted to guide developer from the inside of the container body to the outside of the container body through the developer supply port, the developer supply port having a recessed developer accumulation area and a through hole through the center of the recessed developer accumulation area, the spiral guide flange having a beveled guide face extended to the recessed developer accumulation area.
    Type: Application
    Filed: September 7, 2001
    Publication date: March 13, 2003
    Inventors: Jui-Chi Wang, Robin Hsu, Ya Li Huang, Mei Hsia Chang
  • Patent number: 6464869
    Abstract: A filter assembly for a faucet includes a filtering element accommodated within a filter body. A sleeve is disposed within a neck portion of the filter body. A lock ring is sleeved threadably on the filter body, and pushes a ball to project partially from an inner surface of the neck portion so that the ball presses downwardly against a stop shoulder of the sleeve, thereby preventing upward removal of the sleeve from the neck portion. In assembly, when the sleeve is mounted into the neck portion, a curved pushing surface of the sleeve pushes the ball to project partially from an outer surface of the neck portion. Subsequently, when the lock ring is mounted on the filter body, it pushes the ball to project partially from the inner surface of the neck portion.
    Type: Grant
    Filed: July 6, 2001
    Date of Patent: October 15, 2002
    Assignee: Globe Union Industrial Corp.
    Inventor: Robin Hsu
  • Patent number: 6405011
    Abstract: A developer-replenishing container having a cylindrical container body holding a developer, a front bottleneck for output of the developer, a tubular front extension axially connected between the container body and the front bottleneck, smooth developer guide wall portions and oblique developer guide wall portions alternatively arranged in a spiral series inside the container body and the tubular front extension and adapted to guide the developer toward the front bottleneck without causing a laminar flow.
    Type: Grant
    Filed: June 12, 2001
    Date of Patent: June 11, 2002
    Inventors: Jui-Chi Wang, Robin Hsu, Ya-Li Huang, Kuan-Tung Li
  • Patent number: 6243554
    Abstract: A developer replenishing container includes a container body, and a plurality of clamping strips selectively used with the container body for mounting in a copier, wherein the container body has a slide moved in and out of a frame at a bottom neck thereof for developer output control, and two locating blocks at two opposite sides of the bottom neck above the frame; the clamping strips each have a mouth adapted to receive the bottom neck of the container body, two recessed receiving portions disposed at two opposite lateral sides and facing each other and adapted to receive the locating blocks of the bottom neck, two flat positioning ribs respectively disposed in the recessed receiving portions at a bottom side and adapted for engaging into the gaps between the top side wall of the frame and the locating blocks of the bottom neck, and at least one stop rod disposed outside the mouth for positioning in a copier.
    Type: Grant
    Filed: July 28, 2000
    Date of Patent: June 5, 2001
    Assignee: General Plastic Industrial Co., LTD
    Inventors: Jui-Chi Wang, Robin Hsu, Ya-Li Huang, Kuan-Tung Li
  • Patent number: 6233421
    Abstract: A developer replenishing container having a cylindrical container body with a bottle neck, and a tapered plug installed in the bottle neck of the cylindrical container body, wherein the tapered plug has a tubular shank axially extended from one end thereof and suspended in the bottle neck and defining with the bottle neck a developer passage for enabling the developer to be smoothly and evenly guided out of the container body through the developer passage upon rotary motion of the container body.
    Type: Grant
    Filed: February 4, 2000
    Date of Patent: May 15, 2001
    Inventors: Jui-Chi Wang, Robin Hsu, Ya-Li Huang, Kuan-Tung Li
  • Patent number: 6229977
    Abstract: A container body installed in an image forming apparatus to supply developer, having a spiral developer guide spirally extended around an inside wall thereof for guiding developer out of a front opening thereof, the spiral developer guide having a spiral guide way formed of flat surface portions and sloping surface portions alternatively connected in series, and two spiral flanges spirally formed integral with the inside wall of the container body along the series of flat surface portions and sloping surface portions at two opposite lateral sides.
    Type: Grant
    Filed: May 22, 2000
    Date of Patent: May 8, 2001
    Assignee: General Plastic Industrial Co., Ltd.
    Inventors: Jui-Chi Wang, Robin Hsu, Ya-Li Huang, Kuan-Tung Li
  • Patent number: 6229973
    Abstract: A developer container which includes a connector element connects a container body to an image forming apparatus, and a rotating sealing member rotated in an inside chamber in the connector element to close/open the developer passage through the connector element, wherein the rotating sealing member has a flat shutter board, which closes the developer passage through the connector element when turned with the rotating sealing member to a horizontal position, or opens the developer passage through the connector element when turned with the rotating sealing member from the horizontal position to a vertical position.
    Type: Grant
    Filed: May 17, 2000
    Date of Patent: May 8, 2001
    Inventors: Jui-Chi Wang, Robin Hsu, Huang Ya-Li, Li Kuan-Tung
  • Patent number: 6188859
    Abstract: A developer replenishing container having a developer guide cone connected between a cylindrical body portion and a bottle neck for guiding developer out of the cylindrical body portion via the bottle neck, wherein the developer guide cone defines a spiral guide wall portion and a spiral developer flow passageway for guiding developer from the cylindrical body portion toward the bottle neck, the developer guide cone having a diameter made gradually reduced toward the bottle neck, and an angle of slope within about 15°˜45°, the spiral guide wall portion having a depth within about 3˜18 mm, the spiral developer flow passageway having a rear end smoothly extended to the bottle neck in a flush manner for guiding developer to the bottle neck.
    Type: Grant
    Filed: March 20, 2000
    Date of Patent: February 13, 2001
    Assignee: General Plastic Industrial Co.
    Inventors: Jui-Chi Wang, Robin Hsu, Ya-Li Huang, Kuan-Tung Li
  • Patent number: 6173146
    Abstract: A developer cylinder and drive gear arrangement includes a drive gear having a coupling hole at one end of its gear shaft, and a developer cylinder having a coupling block at its one end coupled to the coupling hole at the gear shaft of the drive gear, wherein the coupling block of the developer cylinder has a plurality of teeth spirally disposed around the periphery thereof.
    Type: Grant
    Filed: January 21, 2000
    Date of Patent: January 9, 2001
    Inventors: Jui-Chi Wang, Robin Hsu, Ya-Li Huang, Kuan-Tung Li
  • Patent number: D436121
    Type: Grant
    Filed: December 2, 1999
    Date of Patent: January 9, 2001
    Inventors: Jui-Chi Wang, Robin Hsu, Ya-Li Huang, Kuan-Tung Li
  • Patent number: D437346
    Type: Grant
    Filed: December 2, 1999
    Date of Patent: February 6, 2001
    Inventors: Jui-Chi Wang, Robin Hsu, Ya-Li Huang, Kuan-Tung Li
  • Patent number: D437347
    Type: Grant
    Filed: December 2, 1999
    Date of Patent: February 6, 2001
    Inventors: Jui-Chi Wang, Robin Hsu, Ya-Li Huang, Kuan-Tung Li
  • Patent number: D458301
    Type: Grant
    Filed: September 25, 2001
    Date of Patent: June 4, 2002
    Inventors: Jui-Chi Wang, Robin Hsu, Ya Li Huang, Ching Yu Huang
  • Patent number: D458302
    Type: Grant
    Filed: September 25, 2001
    Date of Patent: June 4, 2002
    Inventors: Jui-Chi Wang, Robin Hsu, Ya Li Huang, Mei Hsia Chang
  • Patent number: D458960
    Type: Grant
    Filed: September 25, 2001
    Date of Patent: June 18, 2002
    Inventors: Jui-Chi Wang, Robin Hsu, Mei Hsia Chang
  • Patent number: D458961
    Type: Grant
    Filed: September 25, 2001
    Date of Patent: June 18, 2002
    Inventors: Jui-Chi Wang, Robin Hsu, Mei Hsia Chang
  • Patent number: D458962
    Type: Grant
    Filed: September 25, 2001
    Date of Patent: June 18, 2002
    Inventors: Jui-Chi Wang, Robin Hsu, Mei Hsia Chang
  • Patent number: D465269
    Type: Grant
    Filed: May 11, 2001
    Date of Patent: November 5, 2002
    Assignee: Globe Union Industrial Corp
    Inventor: Robin Hsu
  • Patent number: D431595
    Type: Grant
    Filed: December 2, 1999
    Date of Patent: October 3, 2000
    Inventors: Jui-Chi Wang, Robin Hsu, Ya-Li Huang, Kuan-Tung Li