Patents by Inventor Qizhong Guo

Qizhong Guo 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).

  • Automatic vacuum sewerage solids cleaning systems and methods
    Patent number: 9566622
    Abstract: This application discloses novel vacuum break devices useful in automatic vacuum flushing systems. The vacuum break devices are capable of rapidly breaking the vacuum in a storage tank of a sewer line, thus enabling efficient flushing of sediments and cleaning of the sewer system. The invention also provides automatic vacuum flushing systems comprising these novel rapid vacuum break devices and methods thereof for sewer or storage tank sediment cleaning in urban drainage systems.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: February 14, 2017
    Inventors: Qizhong Guo, Yunjie Li
  • AUTOMATIC VACUUM SEWERAGE SOLIDS CLEANING SYSTEMS AND METHODS
    Publication number: 20140261735
    Abstract: This application discloses novel vacuum break devices useful in automatic vacuum flushing systems. The vacuum break devices are capable of rapidly breaking the vacuum in a storage tank of a sewer line, thus enabling efficient flushing of sediments and cleaning of the sewer system. The invention also provides automatic vacuum flushing systems comprising these novel rapid vacuum break devices and methods thereof for sewer or storage tank sediment cleaning in urban drainage systems.
    Type: Application
    Filed: March 13, 2014
    Publication date: September 18, 2014
    Inventors: Qizhong Guo, Yunjie Li
  • Portable barrier
    Patent number: 8769880
    Abstract: A portable and collapsible barrier that is lightweight and can be easily transported and erected. The barrier includes a base, a top and an enclosed volume such as a diaphragm that can be expanded with a medium such as a gas or liquid to a desired shape. The expanded volume will act as a barrier. When a series of expanded barriers are connected, they will form a wall that can contain bulk materials or liquids.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: July 8, 2014
    Inventors: Nikos Mouyiaris, Qizhong Guo
  • PORTABLE BARRIER
    Publication number: 20130227895
    Abstract: A portable and collapsible barrier that is lightweight and can be easily transported and erected. The barrier includes a base, a top and an enclosed volume such as a diaphragm that can be expanded with a medium such as a gas or liquid to a desired shape. The expanded volume will act as a barrier. When a series of expanded barriers are connected, they will form a wall that can contain bulk materials or liquids.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 5, 2013
    Inventors: Nikos Mouyiaris, Qizhong Guo