Patents by Inventor Yun-Lan Cheng

Yun-Lan Cheng 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: 20130045793
    Abstract: An electronic sensing coin acceptor includes at least one electronic access device having a casing with a space defined therein, and a memory device is located in the space. A control device is electrically coupled to a reader, a signal output unit, a sensor and a control valve. The information, internal codes and credit information are checked by the sensor which is set to be the default electronic access device so that only the tokens or coins that are accepted by the electronic access device can be used.
    Type: Application
    Filed: August 19, 2011
    Publication date: February 21, 2013
    Inventor: YUN-LAN CHENG
  • Patent number: 8136696
    Abstract: A lottery ticket machine able to prevent tickets from being illegally drawn out includes a machine base provided with a driving device, two press rollers with pressed streaks on the wheel surface and a control device. One of the two press rollers is provided with a shaft extending out of the machine base for fixing the control device that contains a rotary gear with engage holes, a bushing and a control wheel bored with bushing hole to be fitted with the bushing and disposed with engage teeth and projecting members to be respectively engaged with the engage holes of the rotary gear. An outer cover covered on the control device is provided inside with engage teeth to correspondingly engage with the engage teeth of the control wheel, and a spring has opposite ends respectively pushing against the control wheel and the inner wall of the bushing cover.
    Type: Grant
    Filed: May 4, 2009
    Date of Patent: March 20, 2012
    Inventors: Yun-Lan Cheng, Hui-Jin Tong
  • Patent number: 7922038
    Abstract: A lottery ticket machine having function of preventing tickets from being illegally drawn out includes a machine base provided thereon with a driving device, two press rollers and a control device. One of the two press rollers is disposed with a shaft extending out of the machine base for assembling the control device, which consists of a rotary gear with engage holes, a bushing and a control wheel bored with a bushing hole to be fitted on the bushing and provided with engage teeth and projecting bars to be respectively engaged with the engage holes of the rotary gear. An outer cover covered on the control device is disposed inside with engage teeth to be correspondingly engaged with the engage teeth of the control wheel, and a spring has its opposite ends respectively pushing against the control wheel and the inner wall of a bushing cover.
    Type: Grant
    Filed: July 30, 2008
    Date of Patent: April 12, 2011
    Inventor: Yun-Lan Cheng
  • Publication number: 20100276440
    Abstract: A lottery ticket machine able to prevent tickets from being illegally drawn out includes a machine base provided with a driving device, two press rollers with pressed streaks on the wheel surface and a control device. One of the two press rollers is provided with a shaft extending out of the machine base for fixing the control device that contains a rotary gear with engage holes, a bushing and a control wheel bored with bushing hole to be fitted with the bushing and disposed with engage teeth and projecting members to be respectively engaged with the engage holes of the rotary gear. An outer cover covered on the control device is provided inside with engage teeth to correspondingly engage with the engage teeth of the control wheel, and a spring has opposite ends respectively pushing against the control wheel and the inner wall of the bushing cover.
    Type: Application
    Filed: May 4, 2009
    Publication date: November 4, 2010
    Inventors: Yun-Lan CHENG, Hui-Jin Tong
  • Publication number: 20100025423
    Abstract: A lottery ticket machine having function of preventing tickets from being illegally drawn out includes a machine base provided thereon with a driving device, two press rollers and a control device. One of the two press rollers is disposed with a shaft extending out of the machine base for assembling the control device, which consists of a rotary gear with engage holes, a bushing and a control wheel bored with a bushing hole to be fitted on the bushing and provided with engage teeth and projecting bars to be respectively engaged with the engage holes of the rotary gear. An outer cover covered on the control device is disposed inside with engage teeth to be correspondingly engaged with the engage teeth of the control wheel, and a spring has its opposite ends respectively pushing against the control wheel and the inner wall of a bushing cover.
    Type: Application
    Filed: July 30, 2008
    Publication date: February 4, 2010
    Inventor: Yun-Lan CHENG