Patents by Inventor Jianpeng Guo
Jianpeng Guo 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: 20200029497Abstract: A grass trimmer includes a trimming head, a driving device for driving the trimming head to rotate so as to cut vegetation and an operating device for a user to operate so as to control the driving device. The trimming head includes a spool and a line holding member, the spool is used to wind a cutting line, and the line holding member is formed with a line holding structure. The driving device includes a motor. The grass trimmer has an auto-winding mode. In the auto-winding mode, the motor drives at least one of the spool and the line holding member to make the spool and the line holding member rotate relatively so that the cutting line is wound on the spool automatically.Type: ApplicationFiled: October 2, 2019Publication date: January 30, 2020Applicants: Nanjing Chervon Industry Co., Ltd., Chervon (HK) LimitedInventors: Jianpeng GUO, Maohui LI, Fangjie NIE, Toshinari YAMAOKA
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Publication number: 20200008348Abstract: A grass trimmer includes a trimming head, a driving device for driving the trimming head to rotate so as to cut vegetation and an operating device for a user to operate so as to control the driving device. The trimming head includes a spool and a line holding member, the spool is used to wind a cutting line, and the line holding member is formed with a line holding structure. The driving device includes a motor. The grass trimmer has an auto-winding mode. In the auto-winding mode, the motor drives at least one of the spool and the line holding member to make the spool and the line holding member rotate relatively so that the cutting line is wound on the spool automatically.Type: ApplicationFiled: September 20, 2019Publication date: January 9, 2020Applicants: Nanjing Chervon Industry Co., Ltd., Chervon (HK) LimitedInventors: Jianpeng GUO, Maohui LI, Fangjie NIE, Toshinari YAMAOKA
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Patent number: 10487850Abstract: A handheld blower includes a fan for generating an air flow, a motor for driving the fan to rotate about a central axis, a battery pack for supplying power to the motor, an air duct portion including an air duct, the air duct extending long the central axis, a coupling portion for coupling with the battery pack, and a connection portion for connecting the air duct portion with the coupling portion. The fan is received in the air duct. The air duct includes an air duct inlet and an air duct outlet which are respectively located at the two ends of the air duct. The air duct inlet is located between the air duct outlet and the coupling portion. The connection portion is provided with an air intake space located between the air duct inlet and the coupling portion. The air intake space is opened in a radial direction of the central axis.Type: GrantFiled: April 2, 2019Date of Patent: November 26, 2019Assignee: Chevron (HK) LimitedInventors: Xiandian Shao, Toshinari Yamaoka, Fangjie Nie, Jianpeng Guo
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Patent number: 10485165Abstract: A grass trimmer includes a cutting head for mounting a cutting member, a drive head having a output shaft for driving the cutting head to rotate, and an anti-winding member for preventing the output shaft from being wound to by grass. The drive head includes a drive device to drive the output shaft and a head housing for accommodating the drive device. The output shaft connects to the cutting head and passes through the anti-winding member and the anti-winding member is mounted to the cutting head so as to rotate with the cutting head and is disposed between the cutting head and the head housing so as to fill the space between the cutting head and the head housing.Type: GrantFiled: November 19, 2015Date of Patent: November 26, 2019Assignee: Chervon (HK) LimitedInventors: Feng Yuan, Ming Peng, Jianpeng Guo, Zichun Tang
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Patent number: 10440882Abstract: A grass trimmer includes a trimming head, a driving device for driving the trimming head to rotate so as to cut vegetation and an operating device for a user to operate so as to control the driving device. The trimming head includes a spool and a line holding member, the spool is used to wind a cutting line, and the line holding member is formed with a line holding structure. The driving device includes a motor. The grass trimmer has an auto-winding mode. In the auto-winding mode, the motor drives at least one of the spool and the line holding member to make the spool and the line holding member rotate relatively so that the cutting line is wound on the spool automatically.Type: GrantFiled: May 31, 2018Date of Patent: October 15, 2019Assignees: Nanjing Chervon Industry Co., LTD., Chervon (HK) LimitedInventors: Jianpeng Guo, Maohui Li, Fangjie Nie, Toshinari Yamaoka
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Patent number: 10405714Abstract: A blowing machine has a main machine where the main machine includes a housing, a motor and a fan with the housing having a main machine air channel in which the motor and the fan are at least partially accommodated. An airflow guiding assembly is attachable to the housing and has an air duct for guiding the airflow and an airflow guiding member for guiding a part of the airflow in the air duct to flow in a direction deflecting from the first axis.Type: GrantFiled: July 30, 2015Date of Patent: September 10, 2019Assignee: CHERVON (HK) LIMITEDInventors: Jianpeng Guo, Fangjie Nie, Xiandian Shao, Toshinari Yamaoka
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Publication number: 20190226494Abstract: A handheld blower includes a fan for generating an air flow, a motor for driving the fan to rotate about a central axis, a battery pack for supplying power to the motor, an air duct portion including an air duct, the air duct extending long the central axis, a coupling portion for coupling with the battery pack, and a connection portion for connecting the air duct portion with the coupling portion. The fan is received in the air duct. The air duct includes an air duct inlet and an air duct outlet which are respectively located at the two ends of the air duct. The air duct inlet is located between the air duct outlet and the coupling portion. The connection portion is provided with an air intake space located between the air duct inlet and the coupling portion. The air intake space is opened in a radial direction of the central axis.Type: ApplicationFiled: April 2, 2019Publication date: July 25, 2019Inventors: Xiandian Shao, Toshinari Yamaoka, Fangjie Nie, Jianpeng Guo
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Publication number: 20190216013Abstract: A grass trimmer includes a trimming head, a driving device for driving the trimming head to rotate so as to cut vegetation, and an operating device for use in controlling the driving device. The trimming head includes a spool and a line holding element formed with a line holding structure. The driving device includes a motor. The grass trimmer has an auto-winding mode. In the auto-winding mode, the motor drives at least one of the spool and the line holding element to make the spool and the line holding element rotate relatively so that a trimming line is wound on the spool automatically.Type: ApplicationFiled: March 25, 2019Publication date: July 18, 2019Inventors: Jianpeng Guo, Maohui Li, Fangjie Nie, Toshinari Yamaoka
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Patent number: 10337526Abstract: A blower includes a fan for generating an air flow, a motor for driving the fan to rotate about a central axis, a battery pack for supplying power to the motor, an air duct portion including an air duct, the air duct extending long the central axis, a coupling portion for coupling with the battery pack, and a connection portion for connecting the air duct portion with the coupling portion. The fan is received in the air duct. The air duct includes an air duct inlet and an air duct outlet which are respectively located at the two ends of the air duct. The air duct inlet is located between the air duct outlet and the coupling portion. The connection portion is provided with an air intake space located between the air duct inlet and the coupling portion. The air intake space is opened in a radial direction of the central axis.Type: GrantFiled: May 5, 2016Date of Patent: July 2, 2019Assignee: CHERVON (HK) LIMITEDInventors: Xiandian Shao, Toshinari Yamaoka, Fangjie Nie, Jianpeng Guo
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Publication number: 20190191638Abstract: A handheld blower includes a housing having an air inlet and a duct assembly mounted in front of the air inlet, the duct assembly including a duct connected with the housing, a motor and a fan mounted in the duct, a battery, and a blowpipe connected to the housing by the duct assembly, the blowpipe defining a central axis in the length direction, and a handle arranged above the housing and the battery. The handle includes a gripping portion arranged on opposite sides of a plane in which the gravity center of the blower is located, and the plane is parallel to a central axis of the blowpipe and substantially perpendicular to a working ground. The gravity center of the handheld blower is adjacent to the gripping portion which enhances the handling comfort and reduces operator fatigue during long times of operation.Type: ApplicationFiled: March 5, 2019Publication date: June 27, 2019Inventors: Toshinari Yamaoka, Xiandian Shao, Fangjie Nie, Jianpeng Guo
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Patent number: 10264725Abstract: A grass trimmer includes a trimming head, a driving device for driving the trimming head to rotate so as to cut vegetation and an operating device for a user to operate so as to control the driving device. The trimming head includes a spool and a line holding element, the spool is used to wind a trimming line, and the line holding element is formed with a line holding structure. The driving device includes a motor. The grass trimmer has an auto-winding mode. In the auto-winding mode, the motor drives at least one of the spool or the line holding element to make the spool and the line holding element rotate relatively so that the trimming line is wound on the spool automatically.Type: GrantFiled: December 12, 2017Date of Patent: April 23, 2019Assignees: Nanjing Chervon Industry Co., Ltd., Chervon (HK) LimitedInventors: Jianpeng Guo, Maohui Li, Fangjie Nie, Toshinari Yamaoka
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Patent number: 10264739Abstract: A handheld blower includes a housing having an air inlet and a duct assembly mounted in front of the air inlet, the duct assembly including a duct connected with the housing, a motor and a fan mounted in the duct, a battery, and a blowpipe connected to the housing by the duct assembly, the blowpipe defining a central axis in the length direction, and a handle arranged above the housing and the battery. The handle includes a gripping portion arranged on opposite sides of a plane in which the gravity center of the blower is located, and the plane is parallel to a central axis of the blowpipe and substantially perpendicular to a working ground. The gravity center of the handheld blower is adjacent to the gripping portion which enhances the handling comfort and reduces operator fatigue during long times of operation.Type: GrantFiled: July 13, 2018Date of Patent: April 23, 2019Assignee: Chervon (HK) LimitedInventors: Toshinari Yamaoka, Xiandian Shao, Fangjie Nie, Jianpeng Guo
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Publication number: 20190098844Abstract: A blower has a fan, a motor, an air duct assembly having an air duct passage with an air inlet and an air outlet where the fan rotates to drive the airflow to enter into the air duct passage from the air inlet and to be exposed out of the air outlet, and an electrostatic neutralization apparatus. The electrostatic neutralization apparatus includes a first conductive end and a second conductive end wherein the first conductive end is located within the air duct passage and close to the fan and the second conductive end is also located within the air duct passage. The electrostatic neutralization apparatus of the blower effectively neutralizes electrostatic charges generated by the fan.Type: ApplicationFiled: September 13, 2018Publication date: April 4, 2019Inventors: Dezhong Yang, Jifeng Feng, Jianpeng Guo
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Publication number: 20180317403Abstract: A handheld blower includes a housing having an air inlet and a duct assembly mounted in front of the air inlet, the duct assembly including a duct connected with the housing, a motor and a fan mounted in the duct, a battery, and a blowpipe connected to the housing by the duct assembly, the blowpipe defining a central axis in the length direction, and a handle arranged above the housing and the battery. The handle includes a gripping portion arranged on opposite sides of a plane in which the gravity center of the blower is located, and the plane is parallel to a central axis of the blowpipe and substantially perpendicular to a working ground. The gravity center of the handheld blower is adjacent to the gripping portion which enhances the handling comfort and reduces operator fatigue during long times of operation.Type: ApplicationFiled: July 13, 2018Publication date: November 8, 2018Inventors: Toshinari Yamaoka, Xiandian Shao, Fangjie Nie, Jianpeng Guo
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Publication number: 20180288952Abstract: A handheld blower includes a housing having an air inlet and a duct assembly mounted in front of the air inlet, the duct assembly including a duct connected with the housing, a motor and a fan mounted in the duct, a battery, and a blowpipe connected to the housing by the duct assembly, the blowpipe defining a central axis in the length direction, and a handle arranged above the housing and the battery. The handle includes a gripping portion arranged on opposite sides of a plane in which the gravity center of the blower is located, and the plane is parallel to a central axis of the blowpipe and substantially perpendicular to a working ground. The gravity center of the handheld blower is adjacent to the gripping portion which enhances the handling comfort and reduces operator fatigue during long times of operation.Type: ApplicationFiled: April 25, 2018Publication date: October 11, 2018Inventors: Toshinari Yamaoka, Xiandian Shao, Fangjie Nie, Jianpeng Guo
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Patent number: 10091954Abstract: A handheld blower includes a housing having an air inlet and a duct assembly mounted in front of the air inlet, the duct assembly including a duct connected with the housing, a motor and a fan mounted in the duct, a battery, and a blowpipe connected to the housing by the duct assembly, the blowpipe defining a central axis in the length direction, and a handle arranged above the housing and the battery. The handle includes a gripping portion arranged on opposite sides of a plane in which the gravity center of the blower is located, and the plane is parallel to a central axis of the blowpipe and substantially perpendicular to a working ground. The gravity center of the handheld blower is adjacent to the gripping portion which enhances the handling comfort and reduces operator fatigue during long times of operation.Type: GrantFiled: April 25, 2018Date of Patent: October 9, 2018Assignee: Chervon (HK) LimitedInventors: Toshinari Yamaoka, Xiandian Shao, Fangjie Nie, Jianpeng Guo
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Publication number: 20180271012Abstract: A grass trimmer includes a trimming head, a driving device for driving the trimming head to rotate so as to cut vegetation and an operating device for a user to operate so as to control the driving device. The trimming head includes a spool and a line holding member, the spool is used to wind a cutting line, and the line holding member is formed with a line holding structure. The driving device includes a motor. The grass trimmer has an auto-winding mode. In the auto-winding mode, the motor drives at least one of the spool and the line holding member to make the spool and the line holding member rotate relatively so that the cutting line is wound on the spool automatically.Type: ApplicationFiled: May 31, 2018Publication date: September 27, 2018Applicants: NANJING CHERVON INDUSTRY CO., LTD., CHERVON (HK) LIMITEDInventors: Jianpeng GUO, Maohui Li, Fangjie Nie, Toshinari Yamaoka
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Patent number: 10039367Abstract: Embodiments of the disclosure are directed to a back-mounted power tool system. The power tool system includes a battery package that can be used on other power tool systems, a backpack apparatus, a power tool, and a connecting member. The backpack apparatus includes a backpack harness to mount the backpack apparatus onto a user's body and a first connector to removably couple the battery package to the backpack apparatus. The power tool includes a motor driven by a power supply from the battery package. The connecting member transfers a weight of the power tool and/or a force received from the power tool to the backpack apparatus by rotatably coupling the power tool to the backpack apparatus. The connecting member further enables the power tool to rotate about a first rotation axis or a second rotation axis, the first rotation axis being perpendicular to the second rotation axis.Type: GrantFiled: April 14, 2016Date of Patent: August 7, 2018Assignee: Chevron (HK) LimitedInventors: Toshinari Yamaoka, Fangjie Nie, Jianpeng Guo
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Publication number: 20180206620Abstract: Embodiments of the disclosure are directed to a back-mounted power tool system. The power tool system includes a battery package that can be used on other power tool systems, a backpack apparatus, a power tool, and a connecting member. The backpack apparatus includes a backpack harness to mount the backpack apparatus onto a user's body and a first connector to removably couple the battery package to the backpack apparatus. The power tool includes a motor driven by a power supply from the battery package. The connecting member transfers a weight of the power tool and/or a force received from the power tool to the backpack apparatus by rotatably coupling the power tool to the backpack apparatus. The connecting member further enables the power tool to rotate about a first rotation axis or a second rotation axis, the first rotation axis being perpendicular to the second rotation axis.Type: ApplicationFiled: March 26, 2018Publication date: July 26, 2018Applicant: Chervon (HK) LimitedInventors: Toshinari YAMAOKA, Fangjie NIE, Jianpeng GUO
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Patent number: 10000900Abstract: A handheld blower includes a housing, the housing including an air inlet and a duct assembly, the duct assembly including a duct, a motor and a fan mounted in the duct, a battery, a handle, and a blowpipe which defines a central axis. Along the direction of the central axis, the area of the flowing cross-section of an air passage at the rear end of the fan adjacent to the air inlet is larger than that of the flowing cross-section of an air outlet of the blowpipe, and the rate between the area of the flow cross-section of the air outlet of the blowpipe and the area of the flow cross-section of the flow-through area at the position of the fan is greater than or equal to 0.8.Type: GrantFiled: September 23, 2013Date of Patent: June 19, 2018Assignee: Chervon (HK) LimitedInventors: Toshinari Yamaoka, Jianpeng Guo, Fangjie Nie, Xiandian Shao