Patents by Inventor Haishen Xu

Haishen Xu 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).

  • Publication number: 20240107950
    Abstract: A power-assisted working machine and mower. The mower includes a body including a traveling assembly and a drive motor for driving the traveling assembly; a handle device connected to the body and including an operating member, where the operating member includes a grip for a user to hold; and a connecting rod connected to the body. The mower further includes a motor parameter detection device configured to detect at least one of the rotor position and the working current of the drive motor; an angle detection device configured to detect an angle of inclination of a workplane of the mower relative to a horizontal plane; and a controller configured to estimate thrust applied to the handle device according to the rotor position and/or the working current and the angle of inclination.
    Type: Application
    Filed: August 15, 2023
    Publication date: April 4, 2024
    Inventors: Yiwen Xia, Yanqing Xu, Yufei Ren, Haishen Xu
  • Publication number: 20240099185
    Abstract: A walk-behind electric device includes a device body, a moving wheel, a moving motor, a power interface, and a control unit. The moving wheel is connected to the device body. The moving motor is configured to drive the moving wheel. The power interface is connected to a power supply so as to supply power to the moving motor. The control unit is configured to identify, according to device parameters of the walk-behind electric device, an auxiliary operation that a user wants to perform on the walk-behind electric device, where the auxiliary operation is at least partially positively correlated to at least one output parameter of the moving motor.
    Type: Application
    Filed: September 27, 2022
    Publication date: March 28, 2024
    Inventors: Yiwen Xia, Yanqing Xu, Yufei Ren, Haishen Xu
  • Patent number: 11937545
    Abstract: A lawn mower includes a blade assembly configured to perform a cutting function. The blade assembly includes an upper blade mounted about a blade rotation axis and an upper blade proximal portion being substantially flat and including a first cutting edge. A lower blade is mounted in overlap with the upper blade about the blade rotation axis. The lower blade includes a lower blade proximal portion positioned outward from the lower blade mounting portion in a radial direction, a lower blade end portion positioned outward from the lower blade proximal portion and below the lower blade proximal portion, and a second cutting edge. A lower blade falling portion transitions from the lower blade proximal portion to the lower blade end portion.
    Type: Grant
    Filed: July 12, 2022
    Date of Patent: March 26, 2024
    Assignee: Nanjing Chervon Industry Co., Ltd.
    Inventors: Haishen Xu, Toshinari Yamaoka, Jian Yang
  • Patent number: 11917939
    Abstract: A lawn mower includes a blade assembly configured to perform a cutting function. The blade assembly includes an upper blade mounted about a blade rotation axis and an upper blade proximal portion being substantially flat and including a first cutting edge. A lower blade is mounted in overlap with the upper blade about the blade rotation axis. The lower blade includes a lower blade proximal portion positioned outward from the lower blade mounting portion in a radial direction, a lower blade end portion positioned outward from the lower blade proximal portion and below the lower blade proximal portion, and a second cutting edge. A lower blade falling portion transitions from the lower blade proximal portion to the lower blade end portion.
    Type: Grant
    Filed: May 26, 2022
    Date of Patent: March 5, 2024
    Assignee: Nanjing Chervon Industry Co., Ltd.
    Inventors: Haishen Xu, Toshinari Yamaoka, Jian Yang
  • Publication number: 20240059138
    Abstract: A self-propelled device includes a cutting assembly for cutting vegetation; a body for supporting the cutting assembly; and a traveling system for driving the body to move. The traveling system includes at least a traveling wheel; and a wheel hub motor integrally disposed in the traveling wheel. Along an axial direction of the traveling wheel, the first external dimension of the self-propelled device is greater than or equal to 0.2 m and less than or equal to 1.5 m. Along a direction perpendicular to the axial direction of the traveling wheel, the second external dimension of the self-propelled device is greater than or equal to 0.5 m and less than or equal to 1.5 m.
    Type: Application
    Filed: July 25, 2023
    Publication date: February 22, 2024
    Inventors: Chenglong Hu, Yazhou Geng, Haishen Xu, Yicong Chen, Qiqi Yin, Chao Meng, Huixing Fu
  • Publication number: 20240008398
    Abstract: A mower includes a cutter, a deck, a power unit, and a rotary unit. The deck includes a housing formed with a cutting cavity that connects with a grass discharge passage through a first outlet. The rotary unit includes a rotary body that includes a blocking portion and a connecting portion connected to each other. The rotary unit is capable of rotating to a first position or a second position. When the rotary unit is at the first position, the blocking portion blocks the first outlet. When the rotary unit is at the second position, the first outlet is opened. The deck further includes a first base plate. The first base plate is at least partially located below the rotary unit. The blocking portion mates with the first base plate, and the first base plate limits the downward movement of the blocking portion.
    Type: Application
    Filed: June 21, 2023
    Publication date: January 11, 2024
    Inventors: Yazhou Geng, Haishen Xu, Yuhao Zhang
  • Patent number: 11844305
    Abstract: A walk-behind self-propelled working machine includes a main body, an operation switch, and a handle device. The main body includes a moving assembly and a drive motor. The operation switch is connected to the drive motor. The handle device is connected to the main body and includes an operation member, a connecting rod, and a sensing device. The operation member includes a gripping portion for a user to hold. The connecting rod is connected to the main body. The sensing device is configured to sense a thrust that is applied to the handle device to drive the walk-behind self-propelled working machine and further includes a pressure sensor and a pressing member. When the gripping portion receives the thrust, the pressing member applies a force along a preset straight line to the pressure sensor to drive the pressure sensor to deform.
    Type: Grant
    Filed: July 21, 2022
    Date of Patent: December 19, 2023
    Assignee: Nanjing Chevron Industry Co., Ltd.
    Inventors: Yufei Ren, Yang Li, Ronggen Zhu, Haishen Xu, Rui Zhang
  • Publication number: 20230172102
    Abstract: A lawn mower includes a blade assembly configured to perform a cutting function. The blade assembly includes an upper blade mounted about a blade rotation axis and an upper blade proximal portion being substantially flat and including a first cutting edge. A lower blade is mounted in overlap with the upper blade about the blade rotation axis. The lower blade includes a lower blade proximal portion positioned outward from the lower blade mounting portion in a radial direction, a lower blade end portion positioned outward from the lower blade proximal portion and below the lower blade proximal portion, and a second cutting edge. A lower blade falling portion transitions from the lower blade proximal portion to the lower blade end portion.
    Type: Application
    Filed: February 2, 2023
    Publication date: June 8, 2023
    Inventors: Haishen Xu, Toshinari Yamaoka, Jian Yang
  • Patent number: 11641795
    Abstract: A lawn mower includes a blade assembly configured to perform a cutting function, a deck formed with an accommodation space for accommodating at least a portion of the blade assembly, a motor configured to drive the blade assembly to rotate about a rotation axis, and a battery pack configured to power the motor. The blade assembly includes a first cutting portion configured to cut grass and a second cutting portion configured to cut grass. In the direction parallel to the rotation axis, the second cutting portion is located under the first cutting portion. The battery pack includes a battery pack housing and battery cells provided in the battery pack housing.
    Type: Grant
    Filed: June 26, 2020
    Date of Patent: May 9, 2023
    Assignee: Nanjing Chervon Industry Co., Ltd.
    Inventors: Haishen Xu, Toshinari Yamaoka, Jian Yang
  • Publication number: 20230101935
    Abstract: A lawn mower includes a blade assembly configured to perform a cutting function. The blade assembly includes an upper blade mounted about a blade rotation axis and an upper blade proximal portion being substantially flat and including a first cutting edge. A lower blade is mounted in overlap with the upper blade about the blade rotation axis. The lower blade includes a lower blade proximal portion positioned outward from the lower blade mounting portion in a radial direction, a lower blade end portion positioned outward from the lower blade proximal portion and below the lower blade proximal portion, and a second cutting edge. A lower blade falling portion transitions from the lower blade proximal portion to the lower blade end portion.
    Type: Application
    Filed: December 7, 2022
    Publication date: March 30, 2023
    Inventors: Haishen Xu, Toshinari Yamaoka, Jian Yang
  • Patent number: 11606900
    Abstract: A gardening tool, such as a mower, has a main body having an accessory, such as a mowing blade, and a motor for driving the accessory. A handle is rotatably connected to the main body. At least one operation assembly is associated with the handle for being operated by a user to control the motor when the handle is located in a predetermined position. A control system prevents the motor from being controlled by the operation assembly and halts the motor when the handle is located out of the predetermined position.
    Type: Grant
    Filed: October 31, 2019
    Date of Patent: March 21, 2023
    Assignee: Chervon (HK) Limited
    Inventors: Toshinari Yamaoka, Fangjie Nie, Haishen Xu, Xiandian Shao
  • Publication number: 20230073356
    Abstract: A gardening tool, such as a mower, has a main body having an accessory, such as a mowing blade, and a motor for driving the accessory. A handle is rotatably connected to the main body. At least one operation assembly is associated with the handle for being operated by a user to control the motor when the handle is located in a predetermined position. A control system prevents the motor from being controlled by the operation assembly and halts the motor when the handle is located out of the predetermined position.
    Type: Application
    Filed: September 9, 2022
    Publication date: March 9, 2023
    Inventors: Toshinari Yamaoka, Fangjie Nie, Haishen Xu, Xiandian Shao
  • Publication number: 20230037664
    Abstract: A rear-moving, self-propelled working machine includes a main machine and a handle device. The main machine includes a moving assembly and a motor for driving the moving assembly. The handle device is connected to the main machine and includes an operation member, a connecting rod assembly, a housing, a sensing device, and a trigger assembly. The operation member includes a grip for a user to hold. The connecting rod assembly includes a first connecting rod connected to the main machine. The sensing device is used for sensing a thrust applied to the handle device to drive the rear-moving, self-propelled working machine. The trigger assembly is capable of applying a force to the sensing device when the grip receives the thrust. The trigger assembly is connected to the connecting rod assembly, and the sensing device is connected to the operation member.
    Type: Application
    Filed: October 24, 2022
    Publication date: February 9, 2023
    Inventors: Ronggen Zhu, Yufei Ren, Dezhong Yang, Yang Li, Haishen Xu, Rui Zhang
  • Patent number: D987691
    Type: Grant
    Filed: July 19, 2022
    Date of Patent: May 30, 2023
    Assignee: Nanjing Chervon Industry Co., Ltd.
    Inventors: Haishen Xu, Toshinari Yamaoka, Jian Yang
  • Patent number: D995567
    Type: Grant
    Filed: July 19, 2022
    Date of Patent: August 15, 2023
    Assignee: Nanjing Chervon Industry Co., Ltd.
    Inventors: Haishen Xu, Toshinari Yamaoka, Jian Yang
  • Patent number: D995568
    Type: Grant
    Filed: July 19, 2022
    Date of Patent: August 15, 2023
    Assignee: Nanjing Chervon Industry Co., Ltd.
    Inventors: Haishen Xu, Toshinari Yamaoka, Jian Yang
  • Patent number: D995569
    Type: Grant
    Filed: July 25, 2022
    Date of Patent: August 15, 2023
    Assignee: Nanjing Chervon Industry Co., Ltd.
    Inventors: Haishen Xu, Toshinari Yamaoka, Jian Yang
  • Patent number: D996470
    Type: Grant
    Filed: July 19, 2022
    Date of Patent: August 22, 2023
    Assignee: Nanjing Chervon Industry Co., Ltd.
    Inventors: Haishen Xu, Toshinari Yamaoka, Jian Yang
  • Patent number: D996471
    Type: Grant
    Filed: July 19, 2022
    Date of Patent: August 22, 2023
    Assignee: Nanjing Chervon Industry Co., Ltd.
    Inventors: Haishen Xu, Toshinari Yamaoka, Jian Yang
  • Patent number: D997998
    Type: Grant
    Filed: July 19, 2022
    Date of Patent: September 5, 2023
    Inventors: Haishen Xu, Toshinari Yamaoka, Jian Yang