Patents by Inventor Xuannan Li

Xuannan Li 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).

  • Industrial field real-time working condition radio alarm system
    Patent number: 9536418
    Abstract: An industrial field real-time working condition radio alarm system, comprises a transmitting end (11) and a receiving end (12) carried a worker; the transmitting end (11) comprises a detector (101) to detect the current working condition, a transmitting end processor (102) to process an on-off signal sent by the detector (101), and a radio transmitter (103) to transmit an alarm signal to the receiving end (12) under the control of the transmitting end processor (102); the receiving end (12) comprises a radio receiver (105) to receive the alarm signal, a receiving end processor (106) to process the alarm signal sent by the radio receiver (105), and an alarm (107) to send an alarm under the control of the receiving end processor (106); the transmitting end processor (102) is connected to the detector (101) and the radio transmitter (103) respectively; and the receiving end processor (106) is connected to the radio receiver (105) and the alarm (107) respectively.
    Type: Grant
    Filed: March 9, 2012
    Date of Patent: January 3, 2017
    Assignee: Harbin East Alarm Equipment Development Co., Ltd.
    Inventors: Fei Mao, Weigang Wang, Xuannan Li, Jilong Liu
  • INDUSTRIAL FIELD REAL-TIME WORKING CONDITION RADIO ALARM SYSTEM
    Publication number: 20140240120
    Abstract: An industrial field real-time working condition radio alarm system, comprises a transmitting end (11) and a receiving end (12) carried a worker; the transmitting end (11) comprises a detector (101) to detect the current working condition, a transmitting end processor (102) to process an on-off signal sent by the detector (101), and a radio transmitter (103) to transmit an alarm signal to the receiving end (12) under the control of the transmitting end processor (102); the receiving end (12) comprises a radio receiver (105) to receive the alarm signal, a receiving end processor (106) to process the alarm signal sent by the radio receiver (105), and an alarm (107) to send an alarm under the control of the receiving end processor (106); the transmitting end processor (102) is connected to the detector (101) and the radio transmitter (103) respectively; and the receiving end processor (106) is connected to the radio receiver (105) and the alarm (107) respectively.
    Type: Application
    Filed: March 9, 2012
    Publication date: August 28, 2014
    Applicant: Harbin East Alarm Equipment Development Co., Ltd.
    Inventors: Fei Mao, Weigang Wang, Xuannan Li, Jilong Liu
  • Portable gas detector
    Patent number: D693254
    Type: Grant
    Filed: October 15, 2012
    Date of Patent: November 12, 2013
    Assignee: Harbin East Alarm Equipment Co., Ltd
    Inventors: Jilong Liu, Xuannan Li, Fei Mao