Patents by Inventor Bu-Sik Choi

Bu-Sik Choi 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).

  • Method and device for cooling high voltage transformer for microwave oven
    Patent number: 6885268
    Abstract: Disclosed are a method and a device for cooling a high voltage transformer for a microwave oven, in which the high voltage transformer is sealed so as to separate a coil and a core from the outside and to improve a cooling effect, and in which electric connection lines leading from the high voltage transformer are effectively treated and a fixed structure of a container for accommodating the high voltage transformer is improved so as to protect users of the high voltage transformer from dangers such as an electrical shock occurring in inspecting the microwave oven, thereby improving performance and quality of the microwave oven and the high voltage transformer.
    Type: Grant
    Filed: April 18, 2003
    Date of Patent: April 26, 2005
    Assignee: Puretec Co., Ltd.
    Inventor: Bu-Sik Choi
  • Toilet water saving apparatus linkable with bidet, and water saving method thereof
    Publication number: 20050022292
    Abstract: Disclosed herein is a toilet water saving apparatus linkable with a bidet, and a water saving method thereof. The water saving apparatus comprises branch tubes connected to the supply tube for supplying the washing water to the water reservoir and the bidet, respectively, a three-way valve installed to the branch tubes therebetween, and a urination water level sensor and a defecation water level sensor installed inside the water reservoir of the toilet for detecting a urination water level and a defecation water level. The three-way valve has a reservoir valve and a bidet valve for allowing the washing water to be selectively supplied to one or both of the bidet and the water reservoir.
    Type: Application
    Filed: July 20, 2004
    Publication date: February 3, 2005
    Inventor: Bu-Sik Choi
  • Method and device for cooling high voltage transformer for microwave oven
    Publication number: 20030197583
    Abstract: Disclosed are a method and a device for cooling a high voltage transformer for a microwave oven, in which the high voltage transformer is sealed so as to separate a coil and a core from the outside and to improve a cooling effect, and in which electric connection lines leading from the high voltage transformer are effectively treated and a fixed structure of a container for accommodating the high voltage transformer is improved so as to protect users of the high voltage transformer from dangers such as an electrical shock occurring in inspecting the microwave oven, thereby improving performance and quality of the microwave oven and the high voltage transformer.
    Type: Application
    Filed: April 18, 2003
    Publication date: October 23, 2003
    Inventor: Bu-Sik Choi