Patents by Inventor Wei-Cheng Yeh

Wei-Cheng Yeh 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: 20120275158
    Abstract: A drape with movable light sources mainly includes a light system and a partition disposed within a bracket. The light system has a light source respectively disposed in each first moving member of the drape. A first connecting unit disposed on each first moving member is pervious to light of the light source. Dragging the first moving member brings about a synchronic movement of the light source. Namely, either drawing or expanding the drape allows each first moving member to be restrained by the partition, so that the first moving member is able to be accurately positioned on the bracket of the drape. Therefore, the movement of the light source synchronizes with the movement of the first moving member to provide an even and enhanced lighting effect. When the light source is served at darkness or night, using convenience is further achieved.
    Type: Application
    Filed: December 6, 2011
    Publication date: November 1, 2012
    Inventor: Wei-Cheng YEH
  • Publication number: 20110102185
    Abstract: A power-driven window shade mainly utilizes a controlling device connected to an alarm which includes a power storage respectively connected to a power device and a processing unit of the controlling device, and a detector connected to the power device. If a sudden interruption of electricity supply occurs while the window shade is still running, the detector would generate a warning signal reaction to any abnormal electrical variation and transmit it to the processing unit. Whereby, the processing unit helps a counter save its counting value via the electricity pre-stored in the power storage, and by following the previous saved counting value, the counter is able to continue its counting after resuming the electricity supply. Thus, the present invention preferably prevents from the conventional potential rolling error as well as inconvenient resetting due to an unexpected shutdown of electricity supply.
    Type: Application
    Filed: December 8, 2009
    Publication date: May 5, 2011
    Inventor: Wei-Cheng Yeh
  • Publication number: 20110017411
    Abstract: An electric curtain mainly utilizes a covering sheet furled at an upper limit position, which simultaneously impels an actuating member of a zero device to relatively cooperate with a sensor of the zero device, so that the covering sheet would not continue operating and a counter in the zero device would recount once a processing unit of a controlling device receives a signal from the sensor. Thus, the processing unit would drive the counter to recount in every following drop of the covering sheet to accurately control the suspending position without incurring an accumulative counting error and increase an operative convenience.
    Type: Application
    Filed: July 22, 2009
    Publication date: January 27, 2011
    Applicant: BIN TERNG ENTERPRISE CO., LTD.
    Inventor: WEI-CHENG YEH
  • Publication number: 20090199975
    Abstract: The present invention pertains to an electric roman shade mainly utilizing the controller to rotate the power motor and the roller bar, thus motivating the covering sheet upward and downward. Additionally, by means of the revolving shaft having threads disposed thereon, the cord thus sequentially wraps the shaft without overlapping thereby steadily adjusting movements of the sheet. Further, the covering sheet would automatically stop working while the sliding sections touching the switching tabs, and users can also rise and descend the sheet at desired positions, thus increasing the convenience of using.
    Type: Application
    Filed: February 8, 2008
    Publication date: August 13, 2009
    Inventor: Wei-Cheng YEH
  • Publication number: 20080078509
    Abstract: A motor-driven vertical blind is provided with a restricting device disposed on the transmission shaft and a control device disposed on the transmission device. When curtain pieces held by the slide base move, the transmission device is in control of the swing angles: the transmission shaft will be blocked by the restricting device, whenever the output current of the motor increases above a normal range. Meanwhile, when the control device detects an overloading current, an “off” signal to stop the operation is transmitted to the motor.
    Type: Application
    Filed: October 3, 2006
    Publication date: April 3, 2008
    Inventor: Wei-Cheng YEH
  • Patent number: 6603644
    Abstract: A motor-driven curtain assembly includes a drive shaft mounted rotatably in a top rail, a motor for driving rotatably the drive shaft, and a curtain unit coupled to the drive shaft for movement between closed and open positions. A motor-control device includes a driving circuit for enabling rotation of the motor in one of positive and negative directions under the control of a control unit, a current limiting circuit for limiting current flow from an external power source to the driving circuit when the motor is subjected to an increase in load resistance, and an over load detector for generating a control signal that is indicative of the amount of current flowing from the current limiting circuit to the driving circuit and that is provided to the control unit, thereby enabling the control unit to deactivate the driving circuit for stopping operation of the motor when overloading of the motor occurs.
    Type: Grant
    Filed: February 6, 2001
    Date of Patent: August 5, 2003
    Inventor: Wei-Cheng Yeh
  • Publication number: 20020105763
    Abstract: A motor-driven curtain assembly includes a drive shaft mounted rotatably in a top rail, a motor for driving rotatably the drive shaft, and a curtain unit coupled to the drive shaft for movement between closed and open positions. A motor-control device includes a driving circuit for enabling rotation of the motor in one of positive and negative directions under the control of a control unit, a current limiting circuit for limiting current flow from an external power source to the driving circuit when the motor is subjected to an increase in load resistance, and an over load detector for generating a control signal that is indicative of the amount of current flowing from the current limiting circuit to the driving circuit and that is provided to the control unit, thereby enabling the control unit to deactivate the driving circuit for stopping operation of the motor when overloading of the motor occurs.
    Type: Application
    Filed: February 6, 2001
    Publication date: August 8, 2002
    Inventor: Wei-Cheng Yeh