Patents by Inventor Tsan-Kuen Wu

Tsan-Kuen Wu 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: 6427581
    Abstract: A waffle maker includes upper and lower waffle grids coupled to each other and configured to confine a cooking space when closed together. The cooking space is adapted to receive batter therein. An electric heater unit is operable so as to heat and cook the batter in the cooking space for making a waffle. A temperature control circuit controls heating operation of the electric heater unit, and includes a heater controller for controlling supply of electric power to the electric heater unit, a sensor unit for detecting cooking temperature in the cooking space and for generating a sensor output corresponding to the cooking temperature, a user input unit operable so as to provide a cooking temperature setting, and a processor unit for controlling operation of the heater controller in accordance with the sensor output from the sensor unit and the cooking temperature setting from the user input unit.
    Type: Grant
    Filed: December 20, 2001
    Date of Patent: August 6, 2002
    Assignee: Tsann Kuen USA Inc.
    Inventor: Tsan-Kuen Wu
  • Patent number: 6425319
    Abstract: A griller includes a control circuit for controlling heating operation of an electric heater unit. The control circuit includes a heater controller for controlling supply of electric power to the electric heater unit, a sensor unit for detecting cooking temperature in a cooking space of the griller and for generating a sensor output corresponding to the detected cooking temperature, a user input unit for providing a cooking temperature setting and a cooking time setting, a processor unit for controlling operation of the heater controller in accordance with the sensor output and the cooking temperature setting, and for generating an alarm activate signal upon detection that a predetermined time period corresponding to the cooking time setting has elapsed since the start of the supply of the electric power to the electric heater unit, and an alarm unit activated by the alarm activate signal for generating an alarm output.
    Type: Grant
    Filed: December 20, 2001
    Date of Patent: July 30, 2002
    Assignee: Tsann Kuen USA Inc.
    Inventor: Tsan-Kuen Wu
  • Patent number: 6401601
    Abstract: A grill device includes two independently controllable cooking sets confining two isolated cooking spaces such that two different meat pieces can be grilled therein under different cooking temperatures at the same time.
    Type: Grant
    Filed: September 20, 2001
    Date of Patent: June 11, 2002
    Assignee: Tsann Kuen USA Inc.
    Inventor: Tsan-Kuen Wu
  • Patent number: 6399919
    Abstract: A pressing iron includes a soleplate mounted on a bottom portion of a housing, a temperature status indicator mounted on the housing, and a control circuit mounted in the housing and coupled electrically to the soleplate. A driver unit drives the temperature status indicator to emit a light output. A controller controls heating operation of the soleplate and operation of the driver unit to control light emitting activity of the temperature status indicator. A power storage unit is charged by a rectifying unit when electric power is supplied to the latter by an AC power source, and enables continued operation of the controller and the driver unit for a period of time to permit continued light emitting activity of the temperature status indicator after supply of the electric power from the AC power source to the rectifying unit is interrupted.
    Type: Grant
    Filed: July 31, 2001
    Date of Patent: June 4, 2002
    Assignee: Tsann Kuen USA Inc.
    Inventor: Tsan-Kuen Wu
  • Patent number: 6396027
    Abstract: A pressing iron includes a soleplate mounted on a bottom portion of a housing, an electroluminescent temperature status indicator mounted on an outer wall surface of the housing, and a control circuit mounted in the housing and coupled electrically to the soleplate and the temperature status indicator. The control circuit controls heating operation of the soleplate, and further controls light emitting activity of the temperature status indicator.
    Type: Grant
    Filed: July 31, 2001
    Date of Patent: May 28, 2002
    Assignee: Tsann Kuen USA, Inc.
    Inventor: Tsan-Kuen Wu
  • Patent number: 6393970
    Abstract: A grill device includes two independently controllable cooking sets confining two isolated cooking spaces such that two different meat pieces can be grilled therein under different cooking temperatures at the same time. Each of the cooking sets has a cooking plate provided with first and second grill ribs alternately disposed thereon. The first grill rib has a horizontal flat portion and a curved portion extending curvedly and downwardly from the flat portion. The second grill rib has a horizontal flat portion, and a curved portion extending curvedly and upwardly from the flat portion. The curved portion of the second grill rib has an elevation higher than those of the flat portions of the first and second ribs to prevent sliding out a meat piece from the cooking plate when the meat piece is disposed on the flat portions of the first and second grill ribs.
    Type: Grant
    Filed: December 4, 2001
    Date of Patent: May 28, 2002
    Assignee: Tsann Kuen USA Inc.
    Inventor: Tsan-Kuen Wu
  • Patent number: 6389961
    Abstract: A grill plate includes a plate body having a central fluid collecting groove between left and right cooking plate portions. The central fluid collecting groove has opposite front and rear ends, and is defined by a groove wall having opposite lateral wall portions that extend upwardly from a groove bottom. The groove bottom inclines downwardly from the front end to the rear end. Each of the left and right cooking plate portions has an outer peripheral edge and an inner edge connected integrally to a respective lateral wall portion, and inclines upwardly from the inner edge to the outer peripheral edge. A surrounding wall extends uprightly from the outer peripheral edges of the left and right cooking plate portions and the groove bottom at the front end to close the latter, and is formed with an opening in fluid communication with the rear end.
    Type: Grant
    Filed: August 21, 2001
    Date of Patent: May 21, 2002
    Assignee: Tsann Kuen USA INC
    Inventor: Tsan-Kuen Wu
  • Patent number: 6380519
    Abstract: An electrical oven includes a housing defining an inner space and having a bottom wall, two opposite side walls, a lid that is mounted pivotally on the side walls and that confine the inner space at rear and top sides of the housing, and a front opening for access to the inner space. A door is mounted on the side walls for closing the front opening. The lid is turnable relative to the bottom wall between a closed position, in which the lid confines the inner space at the rear and top sides of the housing, and an open position, in which the lid turns away from the door so as to permit the inner space to be exposed at the rear and top sides of the housing. A locking device is mounted on the lid so as to lock the lid unto the side walls when the lid is at the closed position.
    Type: Grant
    Filed: April 26, 2001
    Date of Patent: April 30, 2002
    Assignee: Tsann Kuen USA Inc.
    Inventor: Tsan Kuen Wu
  • Patent number: 6363839
    Abstract: A grill device includes a horizontal upper grill unit with a rear side, a horizontal lower grill unit with a rear side, and a connecting unit. The upper grill unit is superposed on the lower grill unit. The connecting unit interconnects the rear sides of the upper and lower grill units in such a manner that the upper grill unit can be turned rearward from the lower grill unit to an open position. At the open position, the upper grill unit is prevented by the connecting unit from being moved to left and right sides of the lower grill unit.
    Type: Grant
    Filed: September 20, 2001
    Date of Patent: April 2, 2002
    Assignee: Tsann Kuen USA Inc.
    Inventor: Tsan-Kuen Wu
  • Patent number: 6363835
    Abstract: A grill device includes a lower grill unit with a lower cooking member, and a frame pivoted to a rear side of the lower grill unit so as to be turnable rearwardly relative to the lower grill unit. The frame has two lateral arms defining therebetween a receiving space and confining the lower cooking member therebetween when the frame is at a closed position relative to the lower grill unit. An upper grill unit is disposed in the receiving space, is pivoted to the lateral arms of the frame so as to be turnable relative to the frame, has an upper cooking member which is registered with and which is electrically coupled to the lower cooking member of the lower grill units, and cooperates with the lower grill unit to confine a cooking space therebetween when the frame is at the closed position.
    Type: Grant
    Filed: September 14, 2001
    Date of Patent: April 2, 2002
    Assignee: Tsann Kuen USA Inc.
    Inventor: Tsan-Kuen Wu
  • Patent number: 5768975
    Abstract: A bubble-forming sleeve for an espresso coffee maker includes a generally vertical sleeving portion which has a central bore formed therethrough and which is sleeved fixedly on a nozzle that is fixed on an end of a vapor tube of the coffee maker in such a manner that a liquid-tight seal is established between the nozzle and the sleeving portion, and a mixing portion which is attached around a lower end portion of the sleeving portion and which is immersed entirely into the beverage within the container. The mixing portion has a downwardly opened mixing chamber which is located under and which is communicated fluidly with the central bore of the sleeving portion so as to permit vapor flow from the nozzle into the chamber, and a generally vertical air passage unit which is communicated fluidly with the chamber at a lower end and with an exterior of the sleeve at an upper end.
    Type: Grant
    Filed: July 16, 1997
    Date of Patent: June 23, 1998
    Assignee: Tsann Kuen USA Inc.
    Inventor: Tsan-Kuen Wu
  • Patent number: 5711207
    Abstract: A tea making device includes a hollow main body, a tea brewing unit, a pitcher and a hollow base unit. The main body has an upper portion formed with a water receiving chamber, and a lower portion formed with an accommodation chamber that is isolated from the water receiving chamber. The accommodation chamber is provided with a guiding tube that has a water inlet communicated with the water receiving chamber and a water outlet, and a heating device for heating water that passes through the guiding tube. The tea brewing unit is disposed on one side of the main body, has a brewing chamber communicated with the water outlet, and is formed with a tea outlet. The pitcher is to be disposed below the tea outlet and is capable of receiving the brewed tea that is released from the tea outlet.
    Type: Grant
    Filed: October 29, 1996
    Date of Patent: January 27, 1998
    Assignee: Tsann Kuen USA Inc.
    Inventor: Tsan-Kuen Wu
  • Patent number: D444985
    Type: Grant
    Filed: December 12, 2000
    Date of Patent: July 17, 2001
    Assignee: Tsann Kuen USA Inc.
    Inventor: Tsan-Kuen Wu
  • Patent number: D459142
    Type: Grant
    Filed: August 2, 2001
    Date of Patent: June 25, 2002
    Assignee: Tsann Kuen USA Inc.
    Inventor: Tsan-Kuen Wu
  • Patent number: D460658
    Type: Grant
    Filed: November 14, 2001
    Date of Patent: July 23, 2002
    Assignee: Tsann Kuen USA Inc.
    Inventor: Tsan-Kuen Wu