Patents by Inventor Wen-Jaw WANG

Wen-Jaw WANG 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).

  • Safety detection alarm device
    Patent number: 8669859
    Abstract: A safety detection alarm device for a ladder includes a control alarm unit and a sensor unit. A load sensor module, a voltage detection sensor module or an angle detection sensor module of the sensor unit is installed on the ladder. The load sensor module of the sensor unit is to detect the weight of the load. The voltage detection sensor module is to detect and sense the load of the electricity and current. The angle detection sensor module is to detect the angle of the ladder. A light alarm module or a sound alarm module is used to send an alarm to warn the user that the load, electricity or current of the ladder is over or the ladder is unstable. The present invention is safe for use and provides a better function for use.
    Type: Grant
    Filed: January 6, 2012
    Date of Patent: March 11, 2014
    Inventor: Wen-Jaw Wang
  • SAFETY DETECTION ALARM DEVICE
    Publication number: 20130113617
    Abstract: A safety detection alarm device for a ladder includes a control alarm unit and a sensor unit. A load sensor module, a voltage detection sensor module or an angle detection sensor module of the sensor unit is installed on the ladder. The load sensor module of the sensor unit is to detect the weight of the load. The voltage detection sensor module is to detect and sense the load of the electricity and current. The angle detection sensor module is to detect the angle of the ladder. A light alarm module or a sound alarm module is used to send an alarm to warn the user that the load, electricity or current of the ladder is over or the ladder is unstable. The present invention is safe for use and provides a better function for use.
    Type: Application
    Filed: January 6, 2012
    Publication date: May 9, 2013
    Inventor: Wen-Jaw WANG