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).

  • Patent number: 9826686
    Abstract: An gardening tool, such as a mower, includes a main body and a handle rotatably connected to the main body. The main body includes a motor. The handle includes a plurality of telescopic members slidably connected to each other. The mower further includes a operation assembly for being operated by a user to activate the motor and a control system for sending a control signal to enable or disable the operation of motor by the operation assembly when the handle is out of a accommodating state.
    Type: Grant
    Filed: August 29, 2016
    Date of Patent: November 28, 2017
    Assignee: Chervon (HK) Limited
    Inventors: Toshinari Yamaoka, Fangjie Nie, Haishen Xu
  • Patent number: 9781881
    Abstract: A lawn mower deck includes a deck body having a through hole. The deck body includes a chute. The chute forms a groove which is around the through hole and opened downwards. Reinforcing members are mounted to both sides of the deck body in the width direction.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: October 10, 2017
    Assignee: Chervon (HK) Limited
    Inventors: Toshinari Yamaoka, Qian Liu, Haishen Xu
  • Publication number: 20170149254
    Abstract: A tool discharges one battery pack and a charger simultaneously charges another battery pack to provide for continuous and circular operation of the tool. Tool system includes a tool and a lithium based battery pack having a nominal voltage of at least 56 volts for supplying power to the tool. A heat absorbing device is associated with the battery pack and includes a phase-change material.
    Type: Application
    Filed: December 5, 2016
    Publication date: May 25, 2017
    Inventors: Dezhong Yang, Qichun Zhang, Haishen Xu, Junya Duan, Hao Du
  • Publication number: 20170086375
    Abstract: A lawncare apparatus includes a main body, multiple wheels supporting the main body, a cutting blade disposed in the main body, a motor driving the cutting blade, an operating arm connected to the first end of the main body, and a transmission assembly. The transmission assembly is configured to prevent the switching device from being controlled in a mechanical way by the operation assembly or/and turning on the motor when the first member is moved towards the main body to a predetermined position relative to the second member.
    Type: Application
    Filed: December 9, 2016
    Publication date: March 30, 2017
    Inventors: Toshinari Yamaoka, Fangjie Nie, Haishen Xu, Xiandian Shao
  • Publication number: 20170086370
    Abstract: A lawncare apparatus includes a main body, multiple wheels supporting the main body, a cutting blade disposed in the main body, a motor driving the cutting blade, an operating arm connected to the first end of the main body, and a transmission assembly. The transmission assembly is configured to prevent the switching device from being controlled in a mechanical way by the operation assembly or/and turning on the motor when the first member is moved towards the main body to a predetermined position relative to the second member.
    Type: Application
    Filed: December 9, 2016
    Publication date: March 30, 2017
    Inventors: Toshinari Yamaoka, Fangjie Nie, Haishen Xu, Xiandian Shao
  • Patent number: 9596806
    Abstract: A 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 10, 2014
    Date of Patent: March 21, 2017
    Assignee: Chervon (HK) Limited
    Inventors: Toshinari Yamaoka, Fangjie Nie, Haishen Xu
  • Publication number: 20170049048
    Abstract: An gardening tool, such as a mower, includes a main body and a handle rotatably connected to the main body. The main body includes a motor. The handle includes a plurality of telescopic members slidably connected to each other. The mower further includes a operation assembly for being operated by a user to activate the motor and a control system for sending a control signal to enable or disable the operation of motor by the operation assembly when the handle is out of a accommodating state.
    Type: Application
    Filed: August 29, 2016
    Publication date: February 23, 2017
    Inventors: Toshinari Yamaoka, Fangjie Nie, Haishen Xu
  • Publication number: 20170049049
    Abstract: A gardening tool, such as a mower, includes a main body and a handle rotatably connected to the main body. The main body includes a motor. The handle includes a plurality of telescopic members slidably connected to each other. The mower further includes a operation assembly for being operated by a user to activate the motor and a control device for sending a control signal to enable or disable the operation of motor by the operation assembly.
    Type: Application
    Filed: August 29, 2016
    Publication date: February 23, 2017
    Inventors: Toshinari Yamaoka, Fangjie Nie, Haishen Xu
  • Publication number: 20170049047
    Abstract: A gardening tool, such as a mower, includes a main body and a handle rotatably connected to the main body. The main body includes a motor. The handle includes a plurality of telescopic members slidably connected to each other. The mower further includes a operation assembly for being operated by a user to activate the motor and a control system for sending a control signal to enable or disable the operation of motor by the operation assembly when the handle is out of a secure state.
    Type: Application
    Filed: August 29, 2016
    Publication date: February 23, 2017
    Inventors: Toshinari Yamaoka, Fangjie Nie, Haishen Xu
  • Patent number: 9548614
    Abstract: A tool discharges one battery pack and a charger simultaneously charges another battery pack to provide for continuous and circular operation of the tool. Tool system includes a tool and a lithium based battery pack having a nominal voltage of at least 56 volts for supplying power to the tool. A heat absorbing device is associated with the battery pack and includes a phase-change material.
    Type: Grant
    Filed: January 15, 2015
    Date of Patent: January 17, 2017
    Assignee: Chevron Intellectual Property Limited
    Inventors: Dezhong Yang, Qichun Zhang, Haishen Xu, Junya Duan, Hao Du
  • Publication number: 20160353660
    Abstract: A lawncare apparatus includes a main body, multiple wheels supporting the main body, a cutting blade disposed in the main body, a motor driving the cutting blade, and an operating arm connected to the first end of the main body. The distance in the horizontal direction between the axial central line of the cylindrical gripping portion of the operating arm and the axes of the elongated handle of the main body along the length direction is less than 5 cm. Because of the structure mate relationship between the operating arm and the cylindrical gripping portion, the operator feels more comfortable during the transporting process, the volume of lawncare apparatus during transporting is reduced and the convenience of transporting is improved.
    Type: Application
    Filed: August 16, 2016
    Publication date: December 8, 2016
    Inventors: Toshinari Yamaoka, Fangjie Nie, Haishen Xu, Xiandian Shao
  • Publication number: 20160338266
    Abstract: A hand pushed lawn mower includes a power unit including a motor and a circuit board, a support device for supporting the power unit, and a fan that rotates about a rotating axis. The power unit is detachably connected with the support device and includes a power unit housing. The power unit housing includes a containing chamber for containing the motor and the circuit board, an air inlet allowing an air flow to flow into the containing chamber, and an air outlet allowing the air flow to flow out of the containing chamber. When the fan is rotated, the air flow which flows into the containing chamber from the air inlet at least passes in contact with the circuit board and then flows out of the containing chamber through the air outlet.
    Type: Application
    Filed: May 12, 2016
    Publication date: November 24, 2016
    Inventors: Toshinari Yamaoka, Fangjie Nie, Haishen Xu
  • Publication number: 20160183457
    Abstract: A lawn mower deck includes a deck body having a through hole. The deck body includes a chute. The chute forms a groove which is around the through hole and opened downwards. Reinforcing members are mounted to both sides of the deck body in the width direction.
    Type: Application
    Filed: December 28, 2015
    Publication date: June 30, 2016
    Inventors: Toshinari Yamaoka, Qian Liu, Haishen Xu
  • Publication number: 20150380958
    Abstract: A tool discharges one battery pack and a charger simultaneously charges another battery pack to provide for continuous and circular operation of the tool. Tool system includes a tool and a lithium based battery pack having a nominal voltage of at least 56 volts for supplying power to the tool. A heat absorbing device is associated with the battery pack and includes a phase-change material.
    Type: Application
    Filed: January 15, 2015
    Publication date: December 31, 2015
    Inventors: Dezhong Yang, Qichun Zhang, Haishen Xu, Junya Duan, Hao Du
  • Patent number: 9060463
    Abstract: A lawnmower with operation protection and a safety switch mechanism. The safety switch mechanism include: an inner pipe and a pipe sleeve slidably connected with and enclosing the inner pipe, a safety switch with a contact tab mounted inside the pipe sleeve, a trigger configured to trigger the safety switch by contacting the contact tab when the inner pipe slides, and an elastomer configured to drive the trigger to keep from contacting with the contact tab. All of the safety switch, the trigger and the elastomer are arranged on the same side of the inner pipe. The safety switch mechanism functions to disable the motor upon accidental proximity of the operator to the cutter body to thereby lower the possibility of an accident.
    Type: Grant
    Filed: August 8, 2013
    Date of Patent: June 23, 2015
    Assignee: Chervon (HK) Limited
    Inventors: Toshinari Yamaoka, Fangjie Nie, Haishen Xu, Xiandian Shao
  • Publication number: 20150101301
    Abstract: A 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: October 10, 2014
    Publication date: April 16, 2015
    Inventors: Toshinari Yamaoka, Fangjie Nie, Haishen Xu
  • Patent number: 8963497
    Abstract: A tool discharges one battery pack and a charger simultaneously charges another battery pack to provide for continuous and circular operation of the tool. The ratio of the discharging time to the charging time is approximately 25:35.
    Type: Grant
    Filed: February 27, 2012
    Date of Patent: February 24, 2015
    Assignee: Chervon (HK) Limited
    Inventors: Dezhong Yang, Qichun Zhang, Haishen Xu, Junya Duan, Hao Du
  • Patent number: 8793886
    Abstract: A power tool according to the present invention comprising a working head including a working element, the working head is mounted on a first shaft with a first axis and can be rotated about the first axis, a gripping part, an adjusting mechanism connected between the working head and the gripping part, wherein the adjusting mechanism comprises at least a first transmission element and a second transmission element which are engaged with each other, the first transmission element is connected fixedly to the working head and mounted on the first shaft, the second transmission element is mounted on a hollow rod with an axis, the hollow rod can be rotated relative to the gripping part, a lock for collectively locking the angular position of the working head mounted on the hollow rod. The arrangement simplifies the structure of the power tool, while facilitating the adjusting operation.
    Type: Grant
    Filed: October 22, 2009
    Date of Patent: August 5, 2014
    Assignee: Chervon Limited
    Inventors: Toshinari Yamaoka, Haishen Xu
  • Publication number: 20140102064
    Abstract: A lawncare apparatus includes a main body, multiple wheels supporting the main body, a cutting blade disposed in the main body, a motor driving the cutting blade, and an operating arm connected to the first end of the main body. The distance in the horizontal direction between the axial central line of the cylindrical gripping portion of the operating arm and the axes of the elongated handle of the main body along the length direction is less than 5 cm. Because of the structure mate relationship between the operating arm and the cylindrical gripping portion, the operator feels more comfortable during the transporting process, the volume of lawncare apparatus during transporting is reduced and the convenience of transporting is improved.
    Type: Application
    Filed: October 8, 2013
    Publication date: April 17, 2014
    Applicant: Chervon (HK) Limited
    Inventors: Toshinari Yamaoka, Fangjie Nie, Haishen Xu, Xiandian Shao
  • Publication number: 20140102063
    Abstract: A lawnmower with operation protection and a safety switch mechanism. The safety switch mechanism include: an inner pipe and a pipe sleeve slidably connected with and enclosing the inner pipe, a safety switch with a contact tab mounted inside the pipe sleeve, a trigger configured to trigger the safety switch by contacting the contact tab when the inner pipe slides, and an elastomer configured to drive the trigger to keep from contacting with the contact tab. All of the safety switch, the trigger and the elastomer are arranged on the same side of the inner pipe. The safety switch mechanism functions to disable the motor upon accidental proximity of the operator to the cutter body to thereby lower the possibility of an accident.
    Type: Application
    Filed: August 8, 2013
    Publication date: April 17, 2014
    Applicant: Chervon (HK) Limited
    Inventors: Toshinari Yamaoka, Fangjie Nie, Haishen Xu, Xiandian Shao