Patents by Inventor Guojiang Shao

Guojiang Shao 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).

  • Oil-returning device and accumulator
    Patent number: 8099976
    Abstract: The present invention provides an oil-returning device and a accumulator, the oil-returning device including an outlet pipe and a filtering component, the outlet pipe having an bent arc portion which is provided with a positioning hole, the filtering component including a filtering screen and a filtering screen base with an oil-returning orifice, and being fixedly installed in the positioning hole, wherein an effective cross section area Sn of an inner space of the outlet pipe at a position where the filtering component is installed is in a range of 50%˜90% of an original effective cross section area S0 of the inner space of the untreated outlet pipe at a position where the filtering component is to be installed.
    Type: Grant
    Filed: September 23, 2008
    Date of Patent: January 24, 2012
    Assignee: Zhejiang Sanhua Climate and Appliance Controls Group Co., Ltd
    Inventors: Zhijun Zhang, Feng Chen, Yong Pan, Guojiang Shao
  • OIL-RETURNING DEVICE AND ACCUMULATOR
    Publication number: 20090084130
    Abstract: The present invention provides an oil-returning device and a accumulator, the oil-returning device including an outlet pipe and a filtering component, the outlet pipe having an bent arc portion which is provided with a positioning hole, the filtering component including a filtering screen and a filtering screen base with an oil-returning orifice, and being fixedly installed in the positioning hole, wherein an effective cross section area Sn of an inner space of the outlet pipe at a position where the filtering component is installed is in a range of 50%˜90% of an original effective cross section area S0 of the inner space of the untreated outlet pipe at a position where the filtering component is to be installed.
    Type: Application
    Filed: September 23, 2008
    Publication date: April 2, 2009
    Applicant: Zhejiang Sanhua Climate and Appliance Controls Group Co., Ltd
    Inventors: Zhijun Zhang, Feng Chen, Yong Pan, Guojiang Shao