Patents by Inventor Weijiang Chen

Weijiang Chen 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: 11944928
    Abstract: The present disclosure relates to a filter housing having a bowl and a head. The bowl is configured to house a portion of a filter cartridge. The bowl has an annular groove disposed about a rim of the bowl. The head is configured to mate with the bowl. The head includes an inlet, outlet, and a pair of levers. The inlet is to receive a flow of fluid into the filter housing. The outlet is to release the flow of fluid from the filter housing. The pair of levers are to draw the bowl partially into the head. Each lever has a first arm configured to mate with the annular groove, a second arm having a bearing surface, and a pivot disposed between the first arm and the second arm. A force upon the bearing surface urges the bowl into the head to form a seal.
    Type: Grant
    Filed: March 26, 2021
    Date of Patent: April 2, 2024
    Assignee: Industrial Technologies & Services Americas Inc.
    Inventors: Allan Thomas, Lindell Gay, Weijiang Chen, Michael Wilson
  • Publication number: 20210299602
    Abstract: The present disclosure relates to a filter housing having a bowl and a head. The bowl is configured to house a portion of a filter cartridge. The bowl has an annular groove disposed about a rim of the bowl. The head is configured to mate with the bowl. The head includes an inlet, outlet, and a pair of levers. The inlet is to receive a flow of fluid into the filter housing. The outlet is to release the flow of fluid from the filter housing. The pair of levers are to draw the bowl partially into the head. Each lever has a first arm configured to mate with the annular groove, a second arm having a bearing surface, and a pivot disposed between the first arm and the second arm. A force upon the bearing surface urges the bowl into the head to form a seal.
    Type: Application
    Filed: March 26, 2021
    Publication date: September 30, 2021
    Inventors: Allan Thomas, Lindell Gay, Weijiang Chen, Michael Wilson
  • Patent number: 10107314
    Abstract: A swivel assembly for an actuator includes: a rod defining a socket, the rod defining an arcuate surface at the floor of the socket; a cap dimensioned to fit into the socket, the cap defining a convex arcuate surface dimensioned to correspond to the arcuate surface of the floor of the socket; a first extended surface defined by the rod, the first extended surface, defined at least in part, by side portions of the socket providing depth to the socket; a second extended surface defined by the cap providing an extended length to the cap to allow the cap to extend out of the socket when the convex arcuate surface of the cap contacts the arcuate surface of the floor of the socket; and a cylinder assembly operatively connected to a piston and the cap to permit the piston and cap to move axially along a longitudinal axis of the cylinder assembly to move inwardly and outwardly of the cylinder assembly.
    Type: Grant
    Filed: March 10, 2015
    Date of Patent: October 23, 2018
    Assignee: SPX Flow, Inc.
    Inventors: James Ervin Cooper, Weijiang Chen
  • Patent number: 9856892
    Abstract: An actuator has: a rod having a socket portion at one distal end of the rod; and a swivel cap including: a base portion having an inner surface and an outer surface having an origin of the radius at the center of the plane that defines the outer surface; a raised domed portion disposed on the inner surface of the base portion and mounted in the socket portion of the rod; a raised region located on at least one of the raised domed portion or the socket portion; wherein the swivel cap tilts relative to the rod in response to angular misalignment with a load to a tilt angle; a housing having an interior elongated hole wherein the rod is dimensioned to fit in the elongated hole; a piston dimensioned to fit in and move along the elongated hole while connected to the rod; and mating structure located on at least one of the piston and rod, the mating structure configured to allow the rod to attach to the piston in a manner to create clearance between the rod and the piston to allow the rod and piston to move with re
    Type: Grant
    Filed: July 22, 2014
    Date of Patent: January 2, 2018
    Assignee: SPX FLOW, INC.
    Inventors: James E. Cooper, Weijiang Chen, Bruce E. Knuth
  • Publication number: 20150233396
    Abstract: An actuator has: a rod having a socket portion at one distal end of the rod; and a swivel cap including: a base portion having an inner surface and an outer surface having an origin of the radius at the center of the plane that defines the outer surface; a raised domed portion disposed on the inner surface of the base portion and mounted in the socket portion of the rod; a raised region located on at least one of the raised domed portion or the socket portion; wherein the swivel cap tilts relative to the rod in response to angular misalignment with a load to a tilt angle; a housing having an interior elongated hole wherein the rod is dimensioned to fit in the elongated hole; a piston dimensioned to fit in and move along the elongated hole while connected to the rod; and mating structure located on at least one of the piston and rod, the mating structure configured to allow the rod to attach to the piston in a manner to create clearance between the rod and the piston to allow the rod and piston to move with re
    Type: Application
    Filed: July 22, 2014
    Publication date: August 20, 2015
    Inventors: James E. Cooper, Weijiang Chen, Bruce E. Knuth
  • Publication number: 20150184682
    Abstract: A swivel assembly for an actuator includes: a rod defining a socket, the rod defining an arcuate surface at the floor of the socket; a cap dimensioned to fit into the socket, the cap defining a convex arcuate surface dimensioned to correspond to the arcuate surface of the floor of the socket; a first extended surface defined by the rod, the first extended surface, defined at least in part, by side portions of the socket providing depth to the socket; a second extended surface defined by the cap providing an extended length to the cap to allow the cap to extend out of the socket when the convex arcuate surface of the cap contacts the arcuate surface of the floor of the socket; and a cylinder assembly operatively connected to a piston and the cap to permit the piston and cap to move axially along a longitudinal axis of the cylinder assembly to move inwardly and outwardly of the cylinder assembly.
    Type: Application
    Filed: March 10, 2015
    Publication date: July 2, 2015
    Inventors: James Ervin COOPER, Weijiang CHEN
  • Patent number: 8816699
    Abstract: The present disclosure discloses a voltage source for calibrating a very fast transient voltage measurement system, comprising a DC high voltage power supply, a discharging gap, a high voltage travelling wave line concluding a high voltage conductor and an earthing conductor. The present disclosure also provides a method for calibrating a fast transient voltage measurement system: the high voltage conductor is insulated from the earthing conductor, and is open circuit at one end and at the other end is connected with the earthing conductor via the discharging gap, applying a high voltage between the high voltage conductor and earthing conductor and making breakdown of the discharging gap, a very fast transient high voltage is produced on the high voltage conductor and its waveform can be determined by theoretical calculation, the very fast transient high voltage with known waveform is used as the calibration voltage for calibrating the measurement system.
    Type: Grant
    Filed: August 10, 2011
    Date of Patent: August 26, 2014
    Assignees: Tsinghua University, State Grid Corporation of China, China Electric Power Research Institute
    Inventors: Weidong Liu, Weijiang Chen, Shaowu Wang, Gongchang Yue, Chengyu Wang, Zhibing Li
  • Publication number: 20120032686
    Abstract: The present disclosure discloses a voltage source for calibrating a fast transient voltage measurement system, comprising a DC high voltage power supply, a discharging gap, a high voltage conductor and an earthing conductor, wherein the high voltage conductor and the earthing conductor are high voltage insulated from each other and form a traveling wave line with constant wave impedance; the DC high voltage power supply is connected between the ends of the high voltage conductor and the earthing conductor; the discharging gap is connected between ends of the high voltage conductor and the earthing conductor; the discharging gap is broken down when the charging voltage on the high voltage conductor is risen to a certain amplitude.
    Type: Application
    Filed: August 10, 2011
    Publication date: February 9, 2012
    Applicants: TSINGHUA UNIVERSITY, CHINA ELECTRIC POWER RESEARCH INSTITUTE, STATE GRID CORPORATION OF CHINA
    Inventors: Weidong Liu, Weijiang Chen, Shaowu Wang, Gongchang Yue, Chengyu Wang, Zhibing Li
  • Patent number: D841220
    Type: Grant
    Filed: April 18, 2017
    Date of Patent: February 19, 2019
    Inventors: Weijiang Chen, Jun Chen, Congfei Jin