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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Patent number: 9974241Abstract: 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: May 22, 2017Date of Patent: May 22, 2018Assignee: Chervon (HK) LimitedInventors: Toshinari Yamaoka, Xiandian Shao, Fangjie Nie, Jianpeng Guo
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Publication number: 20180098492Abstract: 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 and 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: ApplicationFiled: December 12, 2017Publication date: April 12, 2018Inventors: Jianpeng Guo, Maohui Li, Fangjie Nie, Toshinari Yamaoka
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Patent number: 9918428Abstract: A rotating assembly for a grass trimmer includes a cutting element, a cutting head for mounting the cutting element and driving the cutting element to rotate about a rotating axis and a cover mounted on the cutting head. The cutting head includes a cutting head body and fan blades for generating an air flow when the cutting head being rotated, which are disposed on a top of the cutting head. The cover includes a cover body and protecting ribs for preventing the fan blades from wearing.Type: GrantFiled: September 13, 2016Date of Patent: March 20, 2018Assignee: Chervon (HK) LimitedInventors: Toshinari Yamaoka, Qihao Sun, Jianpeng Guo
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Publication number: 20180051429Abstract: 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: ApplicationFiled: September 13, 2017Publication date: February 22, 2018Inventors: Toshinari Yamaoka, Jianpeng Guo, Fangjie Nie, Xiandian Shao
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Publication number: 20170258012Abstract: 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: May 22, 2017Publication date: September 14, 2017Inventors: Toshinari Yamaoka, Xiandian Shao, Fangjie Nie, Jianpeng Guo
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Publication number: 20170208748Abstract: 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: February 8, 2017Publication date: July 27, 2017Inventors: Toshinari Yamaoka, Xiandian Shao, Fangjie Nie, Jianpeng Guo
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Patent number: 9603497Abstract: 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: September 23, 2013Date of Patent: March 28, 2017Assignee: Chevron (HK) LimitedInventors: Toshinari Yamaoka, Xiandian Shao, Fangjie Nie, Jianpeng Guo
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Publication number: 20170079204Abstract: A rotating assembly for a grass trimmer includes a cutting element, a cutting head for mounting the cutting element and driving the cutting element to rotate about a rotating axis and a cover mounted on the cutting head. The cutting head includes a cutting head body and fan blades for generating an air flow when the cutting head being rotated, which are disposed on a top of the cutting head. The cover includes a cover body and protecting ribs for preventing the fan blades from wearing.Type: ApplicationFiled: September 13, 2016Publication date: March 23, 2017Inventors: Toshinari Yamaoka, Qihao Sun, Jianpeng Guo
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Publication number: 20160345714Abstract: 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: April 14, 2016Publication date: December 1, 2016Applicant: Chervon (HK) LimitedInventors: Toshinari YAMAOKA, Fangjie NIE, Jianpeng GUO
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Publication number: 20160330913Abstract: 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: ApplicationFiled: May 5, 2016Publication date: November 17, 2016Inventors: Xiandian Shao, Toshinari Yamaoka, Fangjie Nie, Jianpeng Guo
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Publication number: 20160143219Abstract: 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: ApplicationFiled: November 19, 2015Publication date: May 26, 2016Inventors: Feng Yuan, Ming Peng, Jianpeng Guo, Zichun Tang
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Publication number: 20160029863Abstract: 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: ApplicationFiled: July 30, 2015Publication date: February 4, 2016Inventors: Jianpeng Guo, Fangjie Nie, Xiandian Shao, Toshinari Yamaoka
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Publication number: 20140230181Abstract: 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: ApplicationFiled: September 23, 2013Publication date: August 21, 2014Applicant: Chervon (HK) LimitedInventors: Toshinari Yamaoka, Jianpeng Guo, Fangjie Nie, Xiandian Shao
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Publication number: 20140234130Abstract: 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: September 23, 2013Publication date: August 21, 2014Applicant: Chervon (HK) LimitedInventors: Toshinari Yamaoka, Xiandian Shao, Fangjie Nie, Jianpeng Guo