Patents by Inventor Huixing Fu
Huixing Fu 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).
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Publication number: 20240059138Abstract: 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: ApplicationFiled: July 25, 2023Publication date: February 22, 2024Inventors: Chenglong Hu, Yazhou Geng, Haishen Xu, Yicong Chen, Qiqi Yin, Chao Meng, Huixing Fu
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Publication number: 20240000006Abstract: A push power tool includes a chassis. The chassis accommodates at least part of a mowing element. An adjustment mechanism is used for adjusting the mowing height. The chassis includes a first mounting portion for mounting a first gear plate, a second mounting portion for selectively mounting a second gear plate, and a third mounting portion for selectively mounting a connection mechanism for connecting a front wheel set to a rear wheel set. The chassis of the mower and the push power tool adopting the preceding solutions have good versatility.Type: ApplicationFiled: June 13, 2023Publication date: January 4, 2024Inventors: Toshinari Yamaoka, Kang Wang, Huixing Fu, Hao Wang, Zhongji Xia
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Publication number: 20230232737Abstract: A mower includes a mowing system for cutting grass, a housing, and a traveling assembly including walking wheels. The mowing system includes a cutting assembly, a driving mechanism, and a height adjustment mechanism. The cutting assembly includes a mowing element for cutting the grass. The height adjustment mechanism is used for adjusting a movement of the cutting assembly to have different cutting heights, where the height adjustment mechanism includes an adjustment motor for generating an adjustment force for adjusting the mowing element to the different cutting heights. The mower further includes a parameter detection unit and a control unit, where the parameter detection unit is configured to detect a working parameter of the adjustment motor in a working process, and the control unit is configured to identify a cutting height of the mowing element according to the acquired working parameter.Type: ApplicationFiled: December 28, 2022Publication date: July 27, 2023Inventors: Haodong Chen, Xiujian Wu, Huixing Fu, Jiajia Hu
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Publication number: 20210277617Abstract: A snow thrower includes a first drive shaft enabled to rotate about a first axis; an auger having auger blades mounted to the first drive shaft, a second drive shaft enabled to rotate about a second axis, an impeller having an impeller base mounted to the second drive shaft and impeller blades where the second axis and the first axis are perpendicular to each other, a walking wheel assembly, a first motor configured to drive the walking wheel assembly to rotate, a second motor configured to drive the auger to rotate about the first axis and drive the impeller to rotate about the second axis, a first reduction assembly including first-type gears for realizing power transmission between the second motor and the second drive shaft, and a second reduction assembly including second-type gears for realizing power transmission between the second drive shaft and the first drive shaft.Type: ApplicationFiled: May 24, 2021Publication date: September 9, 2021Inventors: Toshinari Yamaoka, Fangjie Nie, Huixing Fu
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Patent number: 11015314Abstract: A snow thrower includes a first drive shaft enabled to rotate about a first axis; an auger having auger blades mounted to the first drive shaft, a second drive shaft enabled to rotate about a second axis, an impeller having an impeller base mounted to the second drive shaft and impeller blades where the second axis and the first axis are perpendicular to each other, a walking wheel assembly, a first motor configured to drive the walking wheel assembly to rotate, a second motor configured to drive the auger to rotate about the first axis and drive the impeller to rotate about the second axis, a first reduction assembly including first-type gears for realizing power transmission between the second motor and the second drive shaft, and a second reduction assembly including second-type gears for realizing power transmission between the second drive shaft and the first drive shaft.Type: GrantFiled: October 22, 2020Date of Patent: May 25, 2021Assignee: Nanjing Chervon Industry Co., Ltd.Inventors: Toshinari Yamaoka, Fangjie Nie, Huixing Fu
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Publication number: 20210040701Abstract: A snow thrower includes a first drive shaft enabled to rotate about a first axis; an auger having auger blades mounted to the first drive shaft, a second drive shaft enabled to rotate about a second axis, an impeller having an impeller base mounted to the second drive shaft and impeller blades where the second axis and the first axis are perpendicular to each other, a walking wheel assembly, a first motor configured to drive the walking wheel assembly to rotate, a second motor configured to drive the auger to rotate about the first axis and drive the impeller to rotate about the second axis, a first reduction assembly including first-type gears for realizing power transmission between the second motor and the second drive shaft, and a second reduction assembly including second-type gears for realizing power transmission between the second drive shaft and the first drive shaft.Type: ApplicationFiled: October 22, 2020Publication date: February 11, 2021Inventors: Toshinari Yamaoka, Fangjie Nie, Huixing Fu
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Patent number: 10638666Abstract: A transmission shaft assembly includes a connecting tube extended along a central axis, a transmission shaft being a rigid shaft made of metal material, which is extended along the central axis and disposed in the connecting tube, a first limiting element disposed on an end of the connecting tube and formed with a first hole allowing the transmission shaft to pass there through, a second limiting element disposed on the other end of the connecting tube and formed with a second hole allowing the transmission shaft to pass there through, and a bushing. The bushing includes a main body formed with a channel extended along the central axis and several projecting parts disposed on the periphery of the main body. The bushing is located in the connecting tube and disposed between the first limiting element and the second limiting element. The transmission shaft passes through the first hole, the channel, and the second hole successively.Type: GrantFiled: December 22, 2017Date of Patent: May 5, 2020Assignee: Nanjing Chervon Industry Co., Ltd.Inventor: Huixing Fu
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Patent number: 10376973Abstract: A chainsaw includes a housing, a prime mover, a transmitting member and a bias assembly. The prime mover is mounted to the housing. The saw chain is driven by the prime mover. The guide bar guides the saw chain and the guide bar is slidably connected to the housing. The driving member drives the guide bar to slide relative to the housing. The operating member swings forth and back relative to the housing. The transmitting member enables the driving member to rotate synchronously with the operating member when the operating member is swung forth and enables the operating member to rotate relative to the driving member when the operating member is swung back. The bias assembly biases the transmitting member to engage with the operating member when the operating member is swung forth.Type: GrantFiled: August 11, 2016Date of Patent: August 13, 2019Assignee: CHEVRON (HK) LIMITEDInventors: Fangjie Nie, Huixing Fu, Wen Chang
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Patent number: 10350743Abstract: A handheld electric tool includes a working device for performing a function of the handheld electric tool, a powering device for provide a driving force to the working device, and a connecting device for connecting the working device and powering device. The powering device includes: an electric motor, a power housing having an air inlet and an air outlet, a transmission mechanism for transmitting power generated by the electric motor and a circuit board for controlling the electric motor, a fan can be driven by the electric motor to provide an airflow which flows from the air inlet to the air outlet. The circuit board, the transmission mechanism and the electric motor are disposed between the air inlet and the air outlet such that the airflow flows through the circuit board, the transmission mechanism and the electric motor successively. The handheld electric tool has excellent cooling effect.Type: GrantFiled: September 7, 2016Date of Patent: July 16, 2019Assignee: CHERVON (HK) LIMITEDInventors: Huixing Fu, Fangjie Nie, Toshinari Yamaoka, Fangtian Deng
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Patent number: 10118307Abstract: A chain saw has a fluid pump. The fluid pump has a pump rod, a pump core assembly defining a pumping channel, and a pump body. The pump core assembly has an inner pump core and an outer pump core. The pumping channel is formed at least by a first hole defined in the inner pump core and a second hole defined in the outer pump core and the first hole is in communication with the inlet and the outlet. The pump rod is arranged to do a straight reciprocating motion in the pumping channel along a first axis so as to force fluid to flow from the inlet to the outlet by passing through the first hole.Type: GrantFiled: September 5, 2017Date of Patent: November 6, 2018Assignee: Chervon (HK) LimitedInventors: Toshinari Yamaoka, Fangjie Nie, Huixing Fu
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Publication number: 20180177135Abstract: A transmission shaft assembly includes a connecting tube extended along a central axis, a transmission shaft being a rigid shaft made of metal material, which is extended along the central axis and disposed in the connecting tube, a first limiting element disposed on an end of the connecting tube and formed with a first hole allowing the transmission shaft to pass there through, a second limiting element disposed on the other end of the connecting tube and formed with a second hole allowing the transmission shaft to pass there through, and a bushing. The bushing includes a main body formed with a channel extended along the central axis and several projecting parts disposed on the periphery of the main body. The bushing is located in the connecting tube and disposed between the first limiting element and the second limiting element. The transmission shaft passes through the first hole, the channel, and the second hole successively.Type: ApplicationFiled: December 22, 2017Publication date: June 28, 2018Inventor: Huixing Fu
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Publication number: 20170361487Abstract: A chain saw has a fluid pump. The fluid pump has a pump rod, a pump core assembly defining a pumping channel, and a pump body. The pump core assembly has an inner pump core and an outer pump core. The pumping channel is formed at least by a first hole defined in the inner pump core and a second hole defined in the outer pump core and the first hole is in communication with the inlet and the outlet. The pump rod is arranged to do a straight reciprocating motion in the pumping channel along a first axis so as to force fluid to flow from the inlet to the outlet by passing through the first hole.Type: ApplicationFiled: September 5, 2017Publication date: December 21, 2017Inventors: Toshinari Yamaoka, Fangjie Nie, Huixing Fu
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Publication number: 20170066119Abstract: A handheld electric tool includes a working device for performing a function of the handheld electric tool, a powering device for provide a driving force to the working device, and a connecting device for connecting the working device and powering device. The powering device includes: an electric motor, a power housing having an air inlet and an air outlet, a transmission mechanism for transmitting power generated by the electric motor and a circuit board for controlling the electric motor, a fan can be driven by the electric motor to provide an airflow which flows from the air inlet to the air outlet. The circuit board, the transmission mechanism and the electric motor are disposed between the air inlet and the air outlet such that the airflow flows through the circuit board, the transmission mechanism and the electric motor successively. The handheld electric tool has excellent cooling effect.Type: ApplicationFiled: September 7, 2016Publication date: March 9, 2017Inventors: Huixing Fu, Fangjie Nie, Toshinari Yamaoka, Fangtian Deng
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Publication number: 20170043421Abstract: A chainsaw includes a housing, a prime mover, a transmitting member and a bias assembly. The prime mover is mounted to the housing. The saw chain is driven by the prime mover. The guide bar guides the saw chain and the guide bar is slidably connected to the housing. The driving member drives the guide bar to slide relative to the housing. The operating member swings forth and back relative to the housing. The transmitting member enables the driving member to rotate synchronously with the operating member when the operating member is swung forth and enables the operating member to rotate relative to the driving member when the operating member is swung back. The bias assembly biases the transmitting member to engage with the operating member when the operating member is swung forth.Type: ApplicationFiled: August 11, 2016Publication date: February 16, 2017Inventors: Fangjie Nie, Huixing Fu, Wen Chang
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Patent number: 9403226Abstract: A chain saw includes a housing, an oil supply system disposed in the housing, a trigger linkage assembly, and a switch controlled by the trigger linkage assembly. The oil supply system includes an oil can and an oil pump assembly connected with the oil can via an oil inlet tube. The trigger linkage assembly includes a switch trigger. The chain saw further includes a pressing member driven by the trigger linkage assembly. When the switch trigger is not activated, the pressing member is located at a first position and can press the oil inlet tube tightly to isolate an oil circuit of the oil supply system. When the switch trigger is pressed down, the pressing member can be driven by the trigger linkage assembly to a second position to release the pressing for the oil inlet tube so that the oil circuit of the oil supply system is allowed to flow.Type: GrantFiled: September 23, 2013Date of Patent: August 2, 2016Assignee: Chevron (HK) LimitedInventors: Huixing Fu, Fangjie Nie
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Publication number: 20150306783Abstract: A chain saw has a fluid pump. The fluid pump has a pump rod, a pump core assembly defining a pumping channel, and a pump body. The pump core assembly has an inner pump core and an outer pump core . The pumping channel is formed at least by a first hole defined in the inner pump core and a second hole defined in the outer pump core and the first hole is in communication with the inlet and the outlet. The pump rod is arranged to do a straight reciprocating motion in the pumping channel along a first axis so as to force fluid to flow from the inlet to the outlet by passing through the first hole.Type: ApplicationFiled: April 23, 2015Publication date: October 29, 2015Inventors: Toshinari Yamaoka, Fangjie Nie, Huixing Fu
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Publication number: 20140283395Abstract: A chain saw includes a housing, an oil supply system disposed in the housing, a trigger linkage assembly, and a switch controlled by the trigger linkage assembly. The oil supply system includes an oil can and an oil pump assembly connected with the oil can via an oil inlet tube. The trigger linkage assembly includes a switch trigger. The chain saw further includes a pressing member driven by the trigger linkage assembly. When the switch trigger is not activated, the pressing member is located at a first position and can press the oil inlet tube tightly to isolate an oil circuit of the oil supply system. When the switch trigger is pressed down, the pressing member can be driven by the trigger linkage assembly to a second position to release the pressing for the oil inlet tube so that the oil circuit of the oil supply system is allowed to flow.Type: ApplicationFiled: September 23, 2013Publication date: September 25, 2014Applicant: Chevron (HK) LimitedInventors: Huixing Fu, Fangjie Nie
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Publication number: 20140150271Abstract: A chain saw includes a housing, a cutting chain, a chain wheel, a guide plate cooperating with the chain wheel to support and guide the cutting chain, a cover plate cooperating with the housing, and a chain wheel tensioning mechanism. The chain wheel tensioning mechanism is wholly combined and disposed movably in the housing so that during the assembly procedure, positions and states of parts such as the cutting chain, the guide plate, the tensioning nut, and the chain wheel can be observed and so that the positioning is accurate and the operation is simple and quick. A distance between the guide plate and the chain wheel is adjusted to tension the cutting chain by use of a tensioning handwheel that is connected to a transmission member where the transmission member causes the tensioning nut fixed on the guide plate to move.Type: ApplicationFiled: August 8, 2013Publication date: June 5, 2014Applicant: Chervon (HK) LimitedInventors: Toshinari Yamaoka, Huixing Fu
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Patent number: 8677632Abstract: A string trimmer has a blade storage mechanism wherein the blade storage mechanism has a cavity arranged on the body of the string trimmer for storing a blade.Type: GrantFiled: August 15, 2011Date of Patent: March 25, 2014Assignee: Chervon (HK) LimitedInventors: Toshinari Yamaoka, Fangjie Nie, Huixing Fu
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Publication number: 20120055033Abstract: A string trimmer has a blade storage mechanism wherein the blade storage mechanism has a cavity arranged on the body of the string trimmer for storing a blade.Type: ApplicationFiled: August 15, 2011Publication date: March 8, 2012Applicant: CHERVON (HK) LIMITEDInventors: Toshinari Yamaoka, Fangjie Nie, Huixing Fu