Patents by Inventor Chengkun Zhang

Chengkun Zhang 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: 11511437
    Abstract: A wheeled base includes a housing, two driven wheeled mechanisms positioned on a bottom of the housing and on opposite sides of the housing, at least one passive wheel positioned on the bottom of the housing, actuated feet positioned on the bottom of the housing and configured to move up and down, sensors, and a battery pack arranged within the housing. The two driven wheeled mechanisms each includes a damping mechanism, and each damping mechanism includes at least two dampers configured to absorb impact caused by an upward movement of the housing, and absorb impact caused by a downward movement of the housing.
    Type: Grant
    Filed: July 7, 2020
    Date of Patent: November 29, 2022
    Assignee: UBTECH ROBOTICS CORP LTD
    Inventors: Marten Byl, Chengkun Zhang, Raymond Ma, Muhammed Rasid Pac, Huan Tan, Youjun Xiong
  • Publication number: 20220371187
    Abstract: A design method of serial manipulator that comprises an end effector, a number of random-access links, and a number of motors, includes: obtaining a desired motion profile of the end effector; discretizing the desired motion profile into a plurality of points, wherein each of the points carries information of speed, acceleration, and force/torque of the end effector at the point; determining the number of degrees of freedom of the serial manipulator, and initializing the length of each of the links and the motor type of each of the motors; and at each of the points, optimizing the initialized lengths of the links and the motor types of the motors by calculating a dynamic manipulability ellipsoid at the end effector, to obtain desired lengths of the links and desired motor types of the motors, which allows the end effector to execute the desired motion profile under predetermined constraints.
    Type: Application
    Filed: May 20, 2021
    Publication date: November 24, 2022
    Inventors: Yang Shen, Dejun Guo, ChengKun Zhang, Huan Tan
  • Patent number: 11440198
    Abstract: A control system for a neck mechanism includes a perception system configured to track movement of an object, and a perception control system that controls a rotary motor to yaw a platform and controls a first linear actuator and a second linear actuator that is in parallel with the first linear actuator to pitch and roll the platform according to a target position of the platform. The perception system tracks movement of the object by estimating its position and pose in 3D space and the platform is moved according to a vision-based position and pose estimation result.
    Type: Grant
    Filed: April 28, 2020
    Date of Patent: September 13, 2022
    Assignee: UBTECH ROBOTICS CORP LTD
    Inventors: Houzhu Ding, Mohammad Iman Mokhlespour Esfahani, Chengkun Zhang, Huan Tan, Youjun Xiong
  • Patent number: 11414639
    Abstract: A bioreactor vessel includes a bottom plate, a vessel body coupled to the bottom plate, the vessel body and the bottom plate defining an interior compartment therebetween, and a plurality of recesses formed in the bottom plate, each recess of the plurality of recesses being configured to receive a corresponding alignment pin on a bed plate for aligning the bioreactor vessel on the bed plate.
    Type: Grant
    Filed: February 8, 2019
    Date of Patent: August 16, 2022
    Assignee: GLOBAL LIFE SCIENCES SOLUTIONS USA LLC
    Inventors: Weston Blaine Griffin, Alex D Corwin, Xiaohua Zhang, Reginald Donovan Smith, Zhen Liu, Chengkun Zhang, Vandana Keskar, Brian Michael Davis, Kashan Shaikh
  • Publication number: 20220251496
    Abstract: A bioprocessing system includes a first fluid assembly having a first fluid assembly line connected to a first port of a first bioreactor vessel though a first bioreactor line of a first bioreactor vessel, a second fluid assembly having a second fluid assembly line connected to a second port of the first bioreactor vessel through a second bioreactor line of the first bioreactor vessel, and an interconnect line providing for fluid communication between the first fluid assembly and the second fluid assembly, and for fluid communication between the second bioreactor line of the first bioreactor vessel and the first bioreactor line of the first bioreactor vessel.
    Type: Application
    Filed: May 2, 2022
    Publication date: August 11, 2022
    Applicant: Global Life Sciences Solutions USA LLC
    Inventors: Weston Blaine Griffin, Alex D. Corwin, Xiaohua Zhang, Reginald Donovan Smith, Zhen Liu, Chengkun Zhang, Vandana Keskar, Brian Michael Davis, Kashan Shaikh
  • Patent number: 11406185
    Abstract: According to one aspect, an actuator of a robotic drawer is disclosed. The actuator may include a plurality of articulation components that form an articulated rack. The actuator may include a plurality of pins each coupled to an exterior of one of the plurality of articulation components. The actuator may include a transformer box coupled to a pinion and configured to move along an exterior of the articulated rack as the pinion moves along the surface. The transformer box may include a first guide configured to apply a first force to an arm of each of the pins as the transformer box moves in a first direction. The first force may cause the pin to rotate in a first rotational direction until the arm is fitted into a cam of the articulated rack such that adjacent articulation components are held in a fixed position, causing the articulated rack to extend.
    Type: Grant
    Filed: June 25, 2021
    Date of Patent: August 9, 2022
    Assignees: UBTECH NORTH AMERICA RESEARCH AND DEVELOPMENT CENTER CORP, UBTECH ROBOTICS CORP LTD
    Inventors: Luis Alfredo Mateos Guzman, Chengkun Zhang
  • Patent number: 11371007
    Abstract: A bioprocessing system includes a first fluid assembly having a first fluid assembly line connected to a first port of a first bioreactor vessel though a first bioreactor line of a first bioreactor vessel, a second fluid assembly having a second fluid assembly line connected to a second port of the first bioreactor vessel through a second bioreactor line of the first bioreactor vessel, and an interconnect line providing for fluid communication between the first fluid assembly and the second fluid assembly, and for fluid communication between the second bioreactor line of the first bioreactor vessel and the first bioreactor line of the first bioreactor vessel.
    Type: Grant
    Filed: February 8, 2019
    Date of Patent: June 28, 2022
    Assignee: GLOBAL LIFE SCIENCES SOLUTIONS USA LLC
    Inventors: Weston Blaine Griffin, Alex D Corwin, Xiaohua Zhang, Reginald Donovan Smith, Zhen Liu, Chengkun Zhang, Vandana Keskar, Brian Michael Davis, Kashan Shaikh
  • Publication number: 20220175609
    Abstract: A robotic assistant includes a base; an elevation mechanism positioned on the base; a display rotatably mounted on the elevation mechanism; a camera positioned on the display; and a control system that receives command instructions. In response to the command instructions, the control system is to detect movement of a face of the user in a vertical direction based on the images captured by the camera. In response to detection of the movement of the face of the user in the vertical direction, the control system is to rotate the display and actuate the elevation mechanism to the move the display up and down to allow the camera to face the face of the user during the movement of the face of the user in the vertical direction.
    Type: Application
    Filed: September 7, 2021
    Publication date: June 9, 2022
    Inventors: Houzhu Ding, Chengkun Zhang, Zhen Xiu, Huan Tan
  • Publication number: 20220143841
    Abstract: A robotic hand includes a baseplate, a finger having multiple phalanges that are rotatably coupled to one another, a first of the phalanges having a first end rotatably coupled to the baseplate and a second end and a second of the phalanges rotatably coupled to the second end about an axis of rotation, an actuating mechanism mounted on the baseplate, the actuating mechanism configured to actuate rotation of the plurality of phalanges, and a tendon having opposite ends that are respectively attached to the second of the phalanges and the baseplate. The second of the phalanges has an engagement portion arranged around the axis of rotation, and the tendon is wrapped around a portion of the engagement portion to generate a force acting on the second end of the first of the phalanges, causing the first of the phalanges to rotate from a flexed state to an extended state.
    Type: Application
    Filed: November 12, 2020
    Publication date: May 12, 2022
    Inventors: Won Suk You, Chengkun Zhang, Huan Tan, Youjun Xiong
  • Patent number: 11325264
    Abstract: A robotic hand includes a baseplate, a finger having multiple phalanges that are rotatably coupled to one another, a first of the phalanges having a first end rotatably coupled to the baseplate and a second end and a second of the phalanges rotatably coupled to the second end about an axis of rotation, an actuating mechanism mounted on the baseplate, the actuating mechanism configured to actuate rotation of the plurality of phalanges, and a tendon having opposite ends that are respectively attached to the second of the phalanges and the baseplate. The second of the phalanges has an engagement portion arranged around the axis of rotation, and the tendon is wrapped around a portion of the engagement portion to generate a force acting on the second end of the first of the phalanges, causing the first of the phalanges to rotate from a flexed state to an extended state.
    Type: Grant
    Filed: November 12, 2020
    Date of Patent: May 10, 2022
    Assignees: UBTECH NORTH AMERICA RESEARCH AND DEVELOPMENT CENTER CORP, UBTECH ROBOTICS CORP LTD
    Inventors: Won Suk You, Chengkun Zhang, Huan Tan, Youjun Xiong
  • Patent number: 11320088
    Abstract: A display stand includes a frame, an actuated rotary mechanism coupled to the frame, a counterweight coupled to the actuated rotary mechanism and movable in a vertical direction during rotation of the display about the axis of rotation, and an elevation mechanism. The actuated rotary mechanism includes a display holder that is configured to mount a display to the frame and rotate the display about an axis of rotation. The counterweight and the display are located at opposite sides of a vertical plane that passes through the axis of rotation such that a combined center of mass of the display, the display holder, and the counterweight lies on the vertical plane. The frame is coupled to the elevation mechanism, and the elevation mechanism is configured to move the frame up and down.
    Type: Grant
    Filed: December 7, 2020
    Date of Patent: May 3, 2022
    Assignees: UBTECH NORTH AMERICA RESEARCH AND DEVELOPMENT CENTER CORP, UBTECH ROBOTICS CORP LTD
    Inventors: Houzhu Ding, Chengkun Zhang, Huan Tan, Youjun Xiong
  • Publication number: 20210347059
    Abstract: A robotic assistant includes a wheeled base, a storage unit including drawers, a foldable arm connected to a top of the storage unit and including an end of arm tooling (EOAT) connected to a distal end of the foldable arm, an elevation mechanism positioned on the wheeled base and used to move the storage unit up and down, and a control system that receives command instructions. In response to the command instructions, the control system is configured to move the wheeled base, open or close the one or more drawers, actuate movement of the foldable arm and the EOAT to pick up and place external objects from/to a determined location, and control the storage unit to move up/down.
    Type: Application
    Filed: May 9, 2020
    Publication date: November 11, 2021
    Inventors: Chengkun Zhang, Marten Byl, Muhammed Rasid Pac, Raymond Ma, Luis Alfredo Mateos Guzman, Won Suk You, Huan Tan, Youjun Xiong
  • Publication number: 20210347060
    Abstract: A robotic assistant includes a wheeled base, a storage unit including drawers, a foldable arm connected to a top of the storage unit and including an end of arm tooling (EOAT) connected to a distal end of the foldable arm, an elevation mechanism positioned on the wheeled base and used to move the storage unit up and down, and a control system that receives command instructions. In response to the command instructions, the control system is configured to move the wheeled base, open or close the one or more drawers, actuate movement of the foldable arm and the EOAT to pick up and place external objects from/to a determined location, and control the storage unit to move up/down.
    Type: Application
    Filed: July 7, 2020
    Publication date: November 11, 2021
    Inventors: Marten Byl, Chengkun Zhang, Raymond Ma, Muhammed Rasid Pac, Huan Tan, Youjun Xiong
  • Publication number: 20210347038
    Abstract: A mechanical arm includes a first link connectable to a surface, a second link, a third link, a fourth link, and a fifth link that are coupled to one another in series, and an end effector connectable to the fifth link. The end effector is rotatable about an axis of rotation same as an axis of rotation of the fourth link, and rotatable about an axis of rotation orthogonal to the axis of rotation of the fourth link. The first link, the second link, the third link, the fourth link, and the fifth link are collectively structured and configured to rotate such that the end effector is actuatable to a workspace under the surface.
    Type: Application
    Filed: June 15, 2020
    Publication date: November 11, 2021
    Inventors: CHENGKUN ZHANG, Liang Huang, Jianbo Li, Jingchen Li, Hongyu Ding, Wenhua Fan, Won Suk You, Raymond Ma, Muhammed Rasid Pac, Huan Tan, Youjun Xiong
  • Publication number: 20210331323
    Abstract: A control system for a neck mechanism includes a perception system configured to track movement of an object, and a perception control system that controls a rotary motor to yaw a platform and controls a first linear actuator and a second linear actuator that is in parallel with the first linear actuator to pitch and roll the platform according to a target position of the platform. The perception system tracks movement of the object by estimating its position and pose in 3D space and the platform is moved according to a vision-based position and pose estimation result.
    Type: Application
    Filed: April 28, 2020
    Publication date: October 28, 2021
    Inventors: Houzhu Ding, Mohammad Iman Mokhlespour Esfahani, Chengkun Zhang, Huan Tan, Youjun Xiong
  • Publication number: 20210331310
    Abstract: A neck mechanism for a robot includes a first linear actuator, a second linear actuator in parallel with the first actuator, a rotary stage, and a support shaft positioned behind and between the first linear actuator and the second linear actuator. The first linear actuator and the second linear actuator are both connected between a platform and the rotary stage via joints, and the support shaft is connected between the upper platform and the rotary stage via a joint. The rotary motor is configured to rotate the rotary stage to yaw the platform and the first linear actuator and the second linear actuator are configured to pitch/roll the platform.
    Type: Application
    Filed: April 28, 2020
    Publication date: October 28, 2021
    Inventors: Mohammad Iman Mokhlespour Esfahani, Houzhu Ding, Chengkun Zhang, Huan Tan, Youjun Xiong
  • Patent number: D932530
    Type: Grant
    Filed: June 18, 2020
    Date of Patent: October 5, 2021
    Assignee: UBTECH ROBOTICS CORP LTD
    Inventors: Brandon Jon LaPlante, Liang Huang, Chengkun Zhang, Jianbo Li, Jingchen Li, Francisco Jose Hernandez, Shixun Chen, Hongyu Ding, Wenhua Fan, Xinshui Huang, Huan Tan, Youjun Xiong
  • Patent number: D963722
    Type: Grant
    Filed: June 28, 2021
    Date of Patent: September 13, 2022
    Assignees: UBTECH NORTH AMERICA RESEARCH AND DEVELOPMENT CENTER CORP, UBTECH ROBOTICS CORP LTD
    Inventors: Francisco Jose Hernandez, Brandon Jon LaPlante, Jiexin Cai, ChengKun Zhang, Huan Tan
  • Patent number: D966382
    Type: Grant
    Filed: June 25, 2021
    Date of Patent: October 11, 2022
    Assignees: UBTECH NORTH AMERICA RESEARCH AND DEVELOPMENT CENTER CORP, UBTECH ROBOTICS CORP LTD
    Inventors: Shixun Chen, Jianchi Xiong, ChengKun Zhang, Huan Tan
  • Patent number: D966383
    Type: Grant
    Filed: June 29, 2021
    Date of Patent: October 11, 2022
    Assignees: UBTECH NORTH AMERICA RESEARCH AND DEVELOPMENT CENTER CORP, UBTECH ROBOTICS CORP LTD
    Inventors: Francisco Jose Hernandez, Brandon Jon LaPlante, Shixun Chen, Jiexin Cai, ChengKun Zhang, Huan Tan