Patents by Inventor Liguo Zhou

Liguo Zhou 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).

  • Patent number: 11384754
    Abstract: A slow rate pumping system which includes a discharge line to receive a discharge flow of displacement fluid from a high rate pumper, a return line off of the discharge line to receive a return flow of displacement fluid, a slow rate diversion pumping line off of the discharge line for supplying a diversion flow of displacement fluid downhole, a return valve to control the return flow, and a diversion valve to control the downhole flow. A method of supplying a slow rate flow which includes receiving a main pumping flow through a return line at a pumping pressure, producing a differential pressure between the pumping pressure and a downhole pressure matching a differential setpoint, diverting a slow rate flow of fluid from the main flow using a diversion line off the return line prior to the return valve, and maintaining the differential pressure.
    Type: Grant
    Filed: June 30, 2021
    Date of Patent: July 12, 2022
    Inventors: Ben Mattock, Charlie Eykelbosh, Jeff Spence, Josh Seens, Liguo Zhou, Daniel Blair Fisher, Bilal Abdurahman, Neville Dholoo
  • Patent number: 11217854
    Abstract: A battery carrier configured to hold a battery includes a base and a frame disposed on the base. The base includes a main plate and a first limiter disposed on the main plate. The main plate has a positioning hole located opposite to the first limiter. The frame includes a main part located on the main plate, a tail part disposed to the main part, and a stopper. The main part includes an abutment wall standing on the main plate. The tail part includes a positioning post. The stopper includes an elastic arm disposed on the abutment wall and a block disposed on the elastic arm. The base has a limit edge located between the first limiter and the positioning hole. An extending direction of the limit edge is different from a direction from the first limiter to the positioning hole.
    Type: Grant
    Filed: June 15, 2020
    Date of Patent: January 4, 2022
    Assignees: INVENTEC (PUDONG) TECHNOLOGY CORPORATION, INVENTEC CORPORATION
    Inventors: Ping-Wei Peng, Liguo Zhou
  • Patent number: 11178787
    Abstract: A server device includes a case, first, second and third hard disk brackets and a first cable management cover. The case includes a main part and an expansion part disposed on the main part. The first hard disk bracket is fixed to the expansion part. The second and third hard disk brackets are pivotably disposed on the main part. A first cable management space is formed between each of two opposite exterior surfaces of the second hard disk bracket and each of two opposite interior surfaces of the main part. The second hard disk bracket is between the first and third hard disk brackets. A second cable management space is between a bottom surface of the third hard disk bracket and a supporting surface of the main part. A first cable management cover is in one of the first cable management spaces and fixed to the main part.
    Type: Grant
    Filed: June 15, 2020
    Date of Patent: November 16, 2021
    Assignees: INVENTEC (PUDONG) TECHNOLOGY CORPORATION, INVENTEC CORPORATION
    Inventors: Ping-Wei Peng, Wen-Long Huang, Xing Liu, Liguo Zhou
  • Publication number: 20210324847
    Abstract: A slow rate pumping system which includes a discharge line to receive a discharge flow of displacement fluid from a high rate pumper, a return line off of the discharge line to receive a return flow of displacement fluid, a slow rate diversion pumping line off of the discharge line for supplying a diversion flow of displacement fluid downhole, a return valve to control the return flow, and a diversion valve to control the downhole flow. A method of supplying a slow rate flow which includes receiving a main pumping flow through a return line at a pumping pressure, producing a differential pressure between the pumping pressure and a downhole pressure matching a differential setpoint, diverting a slow rate flow of fluid from the main flow using a diversion line off the return line prior to the return valve, and maintaining the differential pressure.
    Type: Application
    Filed: June 30, 2021
    Publication date: October 21, 2021
    Inventors: Ben Mattock, Charlie Eykelbosh, Jeff Spence, Josh Seens, Liguo Zhou, Daniel Blair Fisher, Bilal Abdurahman, Neville Dholoo
  • Publication number: 20210296624
    Abstract: A battery carrier configured to hold a battery includes a base and a frame disposed on the base. The base includes a main plate and a first limiter disposed on the main plate. The main plate has a positioning hole located opposite to the first limiter. The frame includes a main part located on the main plate, a tail part disposed to the main part, and a stopper. The main part includes an abutment wall standing on the main plate. The tail part includes a positioning post. The stopper includes an elastic arm disposed on the abutment wall and a block disposed on the elastic arm. The base has a limit edge located between the first limiter and the positioning hole. An extending direction of the limit edge is different from a direction from the first limiter to the positioning hole.
    Type: Application
    Filed: June 15, 2020
    Publication date: September 23, 2021
    Inventors: Ping-Wei PENG, Liguo Zhou
  • Publication number: 20210298192
    Abstract: A server device includes a case, first, second and third hard disk brackets and a first cable management cover. The case includes a main part and an expansion part disposed on the main part. The first hard disk bracket is fixed to the expansion part. The second and third hard disk brackets are pivotably disposed on the main part. A first cable management space is formed between each of two opposite exterior surfaces of the second hard disk bracket and each of two opposite interior surfaces of the main part. The second hard disk bracket is between the first and third hard disk brackets. A second cable management space is between a bottom surface of the third hard disk bracket and a supporting surface of the main part. A first cable management cover is in one of the first cable management spaces and fixed to the main part.
    Type: Application
    Filed: June 15, 2020
    Publication date: September 23, 2021
    Applicants: INVENTEC (PUDONG) TECHNOLOGY CORPORATION, INVENTEC CORPORATION
    Inventors: Ping-Wei PENG, Wen-Long HUANG, Xing LIU, Liguo ZHOU
  • Publication number: 20210298193
    Abstract: A server device comprising a chassis, a first hard disk drive frame and a second hard disk drive frame. The first hard disk drive frame is fixed on the chassis. The first hard disk drive frame has at least one first opening exposed to the outside. The second hard disk drive frame is pivotally disposed on the chassis and movable between an in-use position and an inclined position. The second hard disk drive frame has at least one second opening. When the second hard disk drive frame is in the in-use position, the at least one second opening of the second hard disk drive frame is covered by the first hard disk drive frame. When the second hard disk drive frame is in the inclined position, the at least one second opening of the second hard disk drive frame is exposed to the outside.
    Type: Application
    Filed: June 15, 2020
    Publication date: September 23, 2021
    Applicants: INVENTEC (PUDONG) TECHNOLOGY CORPORATION, INVENTEC CORPORATION
    Inventors: Ping-Wei PENG, Wen-Long HUANG, Xing LIU, Liguo ZHOU
  • Patent number: 11078901
    Abstract: A slow rate pumping system which includes a discharge line to receive a discharge flow of displacement fluid from a high rate pumper, a return line off of the discharge line to receive a return flow of displacement fluid, a slow rate diversion pumping line off of the discharge line for supplying a diversion flow of displacement fluid downhole, a return valve to control the return flow, and a diversion valve to control the downhole flow. A method of supplying a slow rate flow which includes receiving a main pumping flow through a return line at a pumping pressure, producing a differential pressure between the pumping pressure and a downhole pressure matching a differential setpoint, diverting a slow rate flow of fluid from the main flow using a diversion line off the return line prior to the return valve, and maintaining the differential pressure.
    Type: Grant
    Filed: September 10, 2018
    Date of Patent: August 3, 2021
    Inventors: Ben Mattock, Charlie Eykelbosh, Jeff Spence, Josh Seens, Liguo Zhou, Daniel Blair Fisher, Bilal Abdurahman, Neville Dholoo
  • Publication number: 20200080550
    Abstract: Described is a slow rate pumping system which includes a discharge line to receive a discharge flow of displacement fluid from a high rate pumper, a return line off of the discharge line to receive a return flow of displacement fluid, a slow rate diversion pumping line off of the discharge line for supplying a diversion flow of displacement fluid downhole, a return valve to control the return flow, and a diversion valve to control the downhole flow. A method of supplying a slow rate flow is also described. It includes receiving a main pumping flow through a return line at a pumping pressure, producing a differential pressure between the pumping pressure and a downhole pressure matching a differential setpoint, diverting a slow rate flow of fluid from the main flow using a diversion line off the return line prior to the return valve, and maintaining the differential pressure.
    Type: Application
    Filed: September 10, 2018
    Publication date: March 12, 2020
    Inventors: Ben Mattock, Charlie Eykelbosh, Jeff Spence, Josh Seens, Liguo Zhou, Daniel Blair Fisher, Bilal Abdurahman, Neville Dholoo
  • Patent number: 8347965
    Abstract: An apparatus for wellbore fluid treatment having a body with a lower end, an upper end, an exterior surface and an interior surface defining a long bore open at the upper end, an outlet port spaced from the upper end, and a die in the long bore between the upper end and the outlet port. The outlet port permits the communication of fluids between the long bore and the exterior surface. The die is substantially immovable within the long bore and has an inner open diameter in which a plug is landable to create a seal in the long bore before passing through the inner open diameter.
    Type: Grant
    Filed: December 23, 2009
    Date of Patent: January 8, 2013
    Assignee: Sanjel Corporation
    Inventors: Jeffrey W. Spence, James K. Gray, Bailey T. Epp, Alberto Martinez, Liguo Zhou
  • Publication number: 20110108276
    Abstract: In accordance with a broad aspect of the present invention there is provided an apparatus for wellbore fluid treatment, comprising: a body with a lower end, an upper end, an exterior surface and an interior surface defining a long bore open at the upper end; an outlet port spaced from the upper end, the outlet port permitting the communication of fluids between the long bore and the exterior surface; and, a die in the long bore between the upper end and the outlet port, the die being substantially immovable within the long bore and having an inner open diameter in which a plug can land to create a seal in the long bore before passing through the inner open diameter.
    Type: Application
    Filed: December 23, 2009
    Publication date: May 12, 2011
    Applicant: SANJEL CORPORATION
    Inventors: JEFFREY W. SPENCE, JAMES K. GRAY, BAILEY T. EPP, ALBERTO MARTINEZ, LIGUO ZHOU