By Blower On Cutter-driving Shaft Patents (Class 56/13.4)
  • Patent number: 11690317
    Abstract: A cutter blade for a mower is disposed inside a housing of the mower and rotatably driven about a vertical axis. The cutter blade includes a blade body a blade portion provided at least at a part of a rotational direction-wise front end portion of the blade body, and a wind generating portion provided at least at a part of a rotational direction-wise rear end portion of the blade body, the wind generating portion extending more upwards than the blade portion. A thickness of the wind generating portion at the rotational direction-wise rear end portion is smaller at least partially than a thickness of the remaining part of the wind generating portion.
    Type: Grant
    Filed: November 22, 2019
    Date of Patent: July 4, 2023
    Assignee: Kubota Corporation
    Inventors: Hirokazu Ito, Motosumi Shiotsuki
  • 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
  • Patent number: 11617302
    Abstract: A mower which may include: an engine for driving at least first and second cutting blades, wherein the first and second cutting blades are located in first and second cutting chambers of the cutter deck structure, wherein the cutter deck structure may include an inclined surface in the first cutting chamber so that at least part of the inclined surface is located closer to the trim side of the cutter deck structure than is any cutting blade rotational axis, the inclined surface extending downwardly from an upper surface of the cutter deck structure toward at least the trim side of the cutter deck structure, wherein the inclined surface slopes downwardly from the upper surface in a direction away from the side-discharge opening; wherein the inclined surface is configured to help provide a high pressure zone within a rear portion of the cutter deck structure and a low pressure zone proximate the trim side of the cutter deck structure for helping vegetation to be cut to be pulled into the first cutting chamber.
    Type: Grant
    Filed: July 17, 2019
    Date of Patent: April 4, 2023
    Assignee: Wright Manufacturing, Inc.
    Inventors: Corey M. Weems, Edward R. Wright
  • Patent number: 11527938
    Abstract: An electric unit is provided with: a motor having a stator and a rotor; a control unit that controls the motor; and a cooling fan that generates cooling wind for cooling the motor and the control unit. The control unit is provided in the upstream of the stator in a cooling flow channel for circulating the cooling wind. The cooling fan is provided to be positioned in the downstream of the motor in the cooling flow channel, the cooling fan generating the cooling wind by drawing air.
    Type: Grant
    Filed: September 20, 2017
    Date of Patent: December 13, 2022
    Assignee: HONDA MOTOR CO., LTD.
    Inventor: Kazuhisa Fujiwara
  • Patent number: 11432479
    Abstract: The present invention is directed to a string trimmer having a blower feature incorporated therein. The string trimmer has a cutting head for holding a spool with cutting line. The cutting line is rotated at high speed to cut grass and other vegetation. The cutting head also includes a fan for generating an airflow to act as a blower. The string trimmer can be operated in two modes. In a first mode, both the fan and the spool housing are engaged with the motor so that the rotation of the spool housing performs a cutting operation. In a second mode, the motor engages only the fan to blow air, and the spool housing is disengaged so no cutting operation is performed.
    Type: Grant
    Filed: August 1, 2019
    Date of Patent: September 6, 2022
    Assignee: Black & Decker, Inc.
    Inventors: Matthew Rosenthal, Justin Cooper
  • Patent number: 11388857
    Abstract: A cutter blade for a lawn mower has an upper blade and a lower blade. The upper blade has an upper blade base and an upper outer end positioned above and further radially outward than the upper blade base. The lower blade has a lower blade base and a mowing section positioned below and further radially outward than the lower blade base. The upper blade base overlaps the lower blade base.
    Type: Grant
    Filed: December 26, 2017
    Date of Patent: July 19, 2022
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Mai Kurihara, Fumio Minami, Yuko Nishi, Hiroshi Kobayashi
  • Patent number: 11172606
    Abstract: A lawnmower which includes a housing, and a passive cleaning assembly for removing detritus from the housing, the passive cleaning assembly being moveably mounted on the housing. The passive cleaning assembly can include a ground-contacting portion, which contacts the ground during use, thereby causing the cleaning portion to move with respect to the housing during movement of the lawnmower. Movement of the lawn mower with respect to the ground causes the cleaning portion of the passive cleaning assembly to move with respect to the housing and to thereby remove detritus from the housing.
    Type: Grant
    Filed: July 18, 2017
    Date of Patent: November 16, 2021
    Assignee: MTD Products Inc
    Inventors: Shalom Levin, Ran Zaslavsky, Eli Shraga, Naor Egozi
  • Patent number: 11147210
    Abstract: A string trimmer attachment assembly for edging a lawn includes a weed trimmer that has a pole, a gear head that is coupled to the pole and a trimming head that is rotatably coupled to the gear head. The gear head is angled between the pole and the trimming head. A rolling unit is removably coupled to the pole of the weed trimmer. The rolling unit is oriented to extend along a perpendicular axis with respect to a rotational axis of the trimming head. Additionally, the rolling unit horizontally orients the rotational axis of the trimming head when the rolling unit is positioned to roll along a support surface. In this way the trimming head is positioned to perform edging along a vertical edge.
    Type: Grant
    Filed: November 8, 2018
    Date of Patent: October 19, 2021
    Inventor: Gerard Landry
  • Patent number: 10687463
    Abstract: A mulching device for attachment to a lawnmower includes a cutting assembly separate from the mower blades, wherein the grass clippings are finely cut and then dispersed onto the ground surface. In one embodiment, the cutting assembly includes an auger that compresses the grass clippings prior to cutting them. The mulching device may also include a separation chamber for separating the grass clippings from the forced air exiting the mower deck, so that the grass clippings may be cut in an environment separate from the forced air. In another embodiment, the mulching device includes a dispersion assembly for spreading the cut grass clippings onto a ground surface. The dispersion assembly may include a chute extending from the forced air outlet to a position adjacent the cutting assembly, wherein the forced air exiting the separation chamber is directed onto the cut grass clippings to disperse the cut grass clippings onto the ground surface.
    Type: Grant
    Filed: December 27, 2016
    Date of Patent: June 23, 2020
    Inventor: Paul Howard Nyboer
  • Patent number: 10624277
    Abstract: A method for intercropping includes planting a first determinate crop and a first indeterminate crop adjacent one another. A second indeterminate crop is planted in place of the first determinate crop after the first indeterminate crop has reached a desired maturity.
    Type: Grant
    Filed: June 10, 2016
    Date of Patent: April 21, 2020
    Inventors: Kenneth Kyle Friesen, John Friesen, Adam Suder
  • Patent number: 10582663
    Abstract: An agricultural machine includes: a base member; a leading edge coupled with the base member and configured for receiving a flow of a material; and an assembly coupled with the base member, the assembly including a device and at least one flexible wiper coupled with the device, the device being configured for rotating and thereby for rotating the at least one flexible wiper therewith, said at least one flexible wiper thereby being configured for cleaning the material from the leading edge.
    Type: Grant
    Filed: July 2, 2014
    Date of Patent: March 10, 2020
    Assignee: CNH Industrial America LLC
    Inventors: Justin Montenguise, Craig E. Murray, Nicholas Shane
  • Patent number: 10188032
    Abstract: A mower includes a rotary blade cutting grass due to being rotationally driven. A work motor rotationally drives the rotary blade. A mower deck houses the rotary blade in an interior thereof. A first shroud forms an air flow passage along the work motor. The air flow passage connects the interior and exterior of the mower deck.
    Type: Grant
    Filed: March 6, 2015
    Date of Patent: January 29, 2019
    Assignee: KUBOTA CORPORATION
    Inventors: Hirokazu Ito, Yoshikazu Togoshi, Miyuki Ikeda
  • Patent number: 10111383
    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: Grant
    Filed: May 12, 2016
    Date of Patent: October 30, 2018
    Assignee: Chervon (HK) Limited
    Inventors: Toshinari Yamaoka, Fangjie Nie, Haishen Xu
  • Patent number: 9918428
    Abstract: 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: Grant
    Filed: September 13, 2016
    Date of Patent: March 20, 2018
    Assignee: Chervon (HK) Limited
    Inventors: Toshinari Yamaoka, Qihao Sun, Jianpeng Guo
  • Patent number: 9844181
    Abstract: The invention relates to a mower having a removable mower deck, and a removable attachment which includes a hopper and conveyor assembly for discharging particulate material from the hopper. The attachment and mower deck may be mounted on the frame of the unit together or separately. The attachment may be configured for rapid mounting and dismounting on the frame of the mower.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: December 19, 2017
    Assignee: Green Industry Innovators, L.L.C.
    Inventor: Steffon L. Hoppel
  • Patent number: 9642303
    Abstract: A grass cutter is provided with a mower and a duct. The mower includes a rotary blade which cuts grass by being driven to rotate, a mower deck which houses the rotary blade, and a fan which is arranged above the mower deck and generates carrier air. The duct includes a duct body which communicates with the mower deck and extends in a conveyance direction of grass clippings cut by the rotary blade, and an opening which is configured to allow carrier air generated by the fan to be introduced into the duct body.
    Type: Grant
    Filed: January 15, 2015
    Date of Patent: May 9, 2017
    Assignee: KUBOTA CORPORATION
    Inventor: Robert Walden
  • Publication number: 20140230394
    Abstract: A lawnmower uses thin, replaceable blades with a hardened cutting edge. Such blades are held by blade holding elements in a horizontally rotating blade assembly. The blade assembly is covered by a blade assembly guard that is only open underneath at a point where blades in the blade assembly would cut grass during normal operation. A blade assembly access panel in the upper portion of the blade assembly guard allows blades to be easily replaced.
    Type: Application
    Filed: February 15, 2013
    Publication date: August 21, 2014
    Inventor: Richard Zerbarini
  • Publication number: 20110308216
    Abstract: An apparatus for creating a strong force of concentrated energy and a blowing force of air pressure in cooperation with an industrial, commercial or home care lawn mower. This device is a new combination of existing materials configured with unique features that provide an effective, practical and economical way to provide an air blower device. It is comprised of a main deck with features with one or more air ducts, a series of baffles to direct the air movement through the deck, and an exhaust duct; of at least one blower fan; and of a means to secure the main deck and blowers to a mower device.
    Type: Application
    Filed: June 14, 2011
    Publication date: December 22, 2011
    Inventors: Steve Norton, Brian Morga, Carl Orosz, Devon Jackson
  • Publication number: 20090090094
    Abstract: The present invention provides a vegetation trimmer (10) comprising: a motor (20) having a motor output shaft (30); a cutting head (22) for cutting vegetation presented thereto; a gear mechanism (26, 34, 36, 38) for transmitting power from said motor output shaft (30) to said cutting head (22), the gear mechanism having a step-down gear ratio for reducing the rate of rotation of said cutting head (22) relative to the rate of rotation of said motor (20), said gear mechanism comprising a pinion wheel (34) mounted on the motor output shaft (30); and a fan (28) also mounted on the motor output shaft (30); wherein the gear mechanism (26, 34, 36, 38) further comprises an internal gear wheel (26) engaging with the pinion wheel (34) and connected to the cutting head (22), whereby the cutting head (22) rotates in the same direction (B) as the fan does (D) during operation of the motor (20).
    Type: Application
    Filed: September 4, 2008
    Publication date: April 9, 2009
    Inventors: Philip S. Million, Kevin Stones
  • Patent number: 6434918
    Abstract: A lawnmower has a mower deck and an engine supported on the mower deck. A dome shaped cover is pivotally connected on the mower deck and can be moved between a position over and enclosing the engine and a second position exposing the engine. A cutting blade is located below the mower deck and is connected to and driven by the engine. The dome shaped cover is provided with vents and defines a space between its lower edge and the mower deck so that air can enter the cover through the vents and the defined space. A fan is connected to and driven by said engine for producing, in cooperation with said vents and the defined space, air flow into and through the dome shaped cover and over the engine. The fan is constructed and arranged so that it discharges the air flow it is providing into the grass cutting discharge stream of the mower.
    Type: Grant
    Filed: July 22, 1999
    Date of Patent: August 20, 2002
    Assignee: Ariens Company
    Inventors: Bela I. Csonka, Jean-Claude Danthois
  • Patent number: 6349475
    Abstract: An implement for trimming grass and weeds, and for blowing clippings and debris. The implement consists of a rotatable housing having an outer wall; at least two fan blades, each of the fan blades having an inner end and a outer end; and at least two slide channels interconnecting each of the fan blades with the rotatable housing. The slide channels allow the outer ends of the fan blades to alternately extend from the outer wall of the rotatable housing to a fully extended position, and retract toward said outer wall to a fully retracted position. A weed trimming line is fixedly attached to and extends outwardly from the rotatable housing for performing weed trimming as a function in addition to debris blowing.
    Type: Grant
    Filed: November 12, 1999
    Date of Patent: February 26, 2002
    Inventor: Mark A. Buck