Rotating Cutting Disk Patents (Class 56/295)
  • Patent number: 10327384
    Abstract: A lawn care device may include a cutting deck housing at least one blade, a rotatable shaft, and a blade coupler operably coupled to the rotatable shaft. The blade coupler may define a blade channel configured to at least partially enclose four sides of a blade inserted therein. The blade coupler may include a support base and a sleeve that is movable relative to the support base based on a compression state of a biasing element. The blade may be insertable into the blade channel by orienting the blade to apply a force to sidewalls of the sleeve to shift the biasing element to a compressed state and rotating the blade proximate to the support base to enable the biasing element to shift to an extended state in which sidewalls of the sleeve define sidewalls of the blade channel.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: June 25, 2019
    Assignee: HUSQVARNA AB
    Inventors: J├Ârgen Johansson, Eric Lennings
  • Patent number: 10123479
    Abstract: A mower blade assembly attaches to a rotatable spindle and includes a mounting plate which defines a first pin aperture. The mounting plate and a retaining plate are attached to the rotatable spindle. The retaining plate defines a second pin aperture. A movable pin plate comprises a pin. A blade is selectively attachable to the mounting plate. The blade defines a retaining plate aperture and a third pin aperture. A biasing member urges the movable pin plate from a disengaged position to an engaged position. The pin is engageable with the pin apertures for mounting and retaining the cutting blade to the mounting plate. The blade is attached by moving the blade over the retaining plate aperture, urging the movable pin plate to the disengaged position, rotating the blade, and releasing the movable pin plate. Another embodiment includes a force finger.
    Type: Grant
    Filed: July 28, 2017
    Date of Patent: November 13, 2018
    Assignee: MTD PRODUCTS INC
    Inventors: Timothy Ladd, Jr., Gary Hobrath, Axel Schaedler, Brian Milliff
  • Patent number: 10070578
    Abstract: A lawn mower includes a drive source for driving a cutter blade, flaps, a grass clippings container, a grass clippings container weight detection unit, a travel distance detection unit, and a control unit. The control unit determines a change amount of weight of the grass clippings container detected by the grass clippings container weight detection unit over the elapsed time period from the time when detection of travel distance of the lawn mower is started by the travel distance detection unit to the time when travel of predetermined distance is completed, and implements control in a manner that the rotation speed of the drive source and the flap angle of the flaps are adjusted in accordance with the change amount of the weight.
    Type: Grant
    Filed: February 27, 2017
    Date of Patent: September 11, 2018
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Koji Kuriyagawa, Hajime Yoshimura
  • Patent number: 10070579
    Abstract: A lawn mower includes a housing having an opened bottom, a drive source for driving the cutter blade in the housing, a flap provided for the cutter blade in a manner that the flap has a changeable flap angle, a grass clippings container storing cut lawn grass, a grass clippings container weight detection unit for detecting weight of the grass clippings container, and a control unit. The control unit controls at least one of the rotational speed of the drive source and the flap angle of the flap in correspondence with the weight detected by the grass clippings container weight detection unit.
    Type: Grant
    Filed: February 27, 2017
    Date of Patent: September 11, 2018
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Koji Kuriyagawa, Hajime Yoshimura
  • Patent number: 9992930
    Abstract: A blade for a mower disc body is provided. The blade defines a central axis of rotation. The blade includes a blade body. The blade body is of a first hardness. The blade body has opposed top and bottom surfaces. An outer surface extends around the blade body vertically between the top and bottom surfaces. The blade body comprises first and second apertures or retainer structures in spaced apart relation. A cutting edge extends along an outer surface of the blade.
    Type: Grant
    Filed: May 11, 2015
    Date of Patent: June 12, 2018
    Assignee: Kondex Corporation
    Inventors: Neal J. Stoffel, Keith A. Johnson
  • Patent number: 9924632
    Abstract: A quick connect mower blade system includes a blade bolt inserted into the top end of a hollow spindle and threaded into a collet having an upright inserted into the lower end of the spindle. The collet has a head that is aligned substantially perpendicular to a hole in a blade holder if the blade bolt is tightened onto the collet to clamp a mower blade between the spindle and blade holder.
    Type: Grant
    Filed: May 20, 2016
    Date of Patent: March 27, 2018
    Assignee: DEERE & COMPANY
    Inventors: Jeffrey P. Chenevert, Brian K. Pearson
  • Patent number: 9844176
    Abstract: A weed trimmer extension device for cutting and collecting, or dispersing weeds includes a cutting enclosure, to which can be attached a collecting bag or a cutting disperser; a replacement cutting implement; and enclosure fasteners, for attaching the weed trimmer extension device to a weed trimmer. The cutting implement can further include a cutting blade and a perpendicular fin, which pushes air in a circular direction of motion, thereby creating a vortex of air, which rotates in the plane spanned out by the rotating cutting blade. The cutting enclosure covers the replacement cutting implement, which propels the cuttings, contained and directed by the cutting enclosure, into either the collecting bag or the cutting disperser, which disperses the weed cuttings over an area to the side.
    Type: Grant
    Filed: May 6, 2015
    Date of Patent: December 19, 2017
    Assignee: FOURNIER AND GRANDE TRUST
    Inventor: Charles Raphael Grande
  • Patent number: 9801337
    Abstract: A blade disk in a lawn mower is rotatable about a rotation shaft extending in an up-down direction. A blade protection section for protecting a cutter blade mounted on the blade disk is provided integrally on the blade disk, and the cutter blade has a distal end portion located beneath the blade protection section.
    Type: Grant
    Filed: February 8, 2016
    Date of Patent: October 31, 2017
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Koji Kasai, Hiroaki Uchitani, Hideshi Sasaki
  • Patent number: 9801338
    Abstract: A lawn mower includes: a blade disk rotatable about a rotation shaft extending in an up-down direction; and a plurality of cutter blades mounted on the blade disk. The blade disk includes a plurality of blade mounting sections having corresponding ones of the cutter blades mounted thereon, and a circumferential high-rigidity section for increasing rigidity of the blade disk between the blade mounting sections. The blade mounting sections are located on, and spaced from each other along, an imaginary reference circle concentric with a rotation center of the blade disk, and the circumferential high-rigidity section is located in such a manner as to interconnect the plurality of blade mounting sections along the reference circle, the circumferential high-rigidity section being formed in a generally concave-convex configuration by being depressed and protruded in a facewise direction of the blade disk.
    Type: Grant
    Filed: February 8, 2016
    Date of Patent: October 31, 2017
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Koji Kasai, Hiroaki Uchitani, Hideshi Sasaki
  • Patent number: 9750183
    Abstract: A quick attach rotary mower blade system includes a blade holder secured to a mower spindle with a shoulder bolt, a pair of upwardly extending protrusions on the blade holder, and a spring biased plunger extending downwardly from the blade holder. A rotary mower blade has a center hole that slides over the shoulder bolt, compresses the spring biased plunger, and rotates over the protrusions to an engaged position.
    Type: Grant
    Filed: July 21, 2015
    Date of Patent: September 5, 2017
    Assignee: DEERE & COMPANY
    Inventor: Robert D. Haun
  • Patent number: 9736981
    Abstract: A lawn care device may include a cutting deck housing at least one blade, a rotatable shaft, and a blade mount operably coupled to the rotatable shaft. The blade mount may include at least one engagement slot configured to enclose at least a portion of the at least one blade. The blade mount may further include at least one protruding member disposed within the engagement slot to secure the at least one blade within the engagement slot responsive to insertion of the at least one blade into the engagement slot.
    Type: Grant
    Filed: March 28, 2014
    Date of Patent: August 22, 2017
    Assignee: HUSQVARNA AB
    Inventors: Chris Roth, Darren Chandler, Lennie Rhoades, Steve Brinkman, Sean Dwyer
  • Patent number: 9723782
    Abstract: A lawn care device may include a cutting deck housing at least one blade, a rotatable shaft, and a blade mount operably coupled to the rotatable shaft. The blade mount may include a clasp to secure the at least one blade within an engagement slot of the blade mount. The cover assembly may form a cavity with at least one sidewall extending substantially around a periphery of the blade mount.
    Type: Grant
    Filed: July 31, 2013
    Date of Patent: August 8, 2017
    Assignee: HUSQVARNA AB
    Inventors: Chris Roth, Eric Tse, Darren Chandler
  • Patent number: 9603301
    Abstract: A weed trimmer apparatus having a head defining at least one side wall, the side wall forming one or more apertures therethrough, and one or more line retention members for retaining one or more trimmer lines. The line retention members are operatively connected to the head, wherein each line retention member is sized and configured to extend through a loop of at least one trimmer line during operation of the weed trimmer apparatus and wherein each line retention member is dynamically connected to the head to allow for installation and removal of the loop of trimmer line.
    Type: Grant
    Filed: August 11, 2008
    Date of Patent: March 28, 2017
    Inventors: Orlando Jerez, Orlando Jerez, Jr.
  • Patent number: 9545053
    Abstract: A quick-release knife connector for use on a rotary disc cutterhead having an asymmetrically shaped knife nut with a first portion providing a bearing surface for an aperture in the knife and a second portion which inhibits axial movement of the knife from contact with the first portion. A capture spring having an aperture for partially receiving the second portion prevents accidental release of the knife. The asymmetric orientation of the second portion and placement of the aperture on the capture spring assures that the knife nut is properly oriented when installed.
    Type: Grant
    Filed: April 25, 2014
    Date of Patent: January 17, 2017
    Assignee: CNH Industrial America LLC
    Inventor: Jeffrey Fay, II
  • Patent number: 9485910
    Abstract: A blade rotor includes a mower disk, at least one mowing blade, at least one bearing pin mounted on the mower disk for pivotable mounting of the mowing blade, and a spring plate arranged on the mower disk for retaining the mowing blade on the bearing pin. In order to facilitate maintenance work when replacing the bearing pin, the invention proposes to provide a mounting hole in or on the mower disk, into which mounting hole the bearing pin can be screwed from a side of the mower disk facing away from the spring plate, wherein a threaded region and a retaining region are formed on the bearing pin, and the retaining region can be introduced through the mounting hole and brought into engagement with the spring plate when the bearing pin is screwed in.
    Type: Grant
    Filed: February 17, 2015
    Date of Patent: November 8, 2016
    Assignee: DEERE & COMPANY
    Inventors: Jonathan Lebeau, Heinrich Tepe, Lionel Guiet
  • Patent number: 9468144
    Abstract: A lawn mower includes: a rotation shaft extending vertically in a downwardly-opening housing; and a cutter blade rotatably mounted on the rotation shaft. The cutter blade is an elongated member extending in opposite horizontal directions and having two bent sections formed on respective ones of its longitudinally opposite end portions. The two bent sections are bent in opposite directions as viewed in the axial direction of the rotation shaft. The cutter blade has, on each of the bent sections, a convex cutter blade section formed along a convex edge of the bent section and a concave cutter blade section formed along a concave edge of the bent section. The convex cutter blade section on each of the bent sections has a smaller cutting edge angle than the concave cutter blade section.
    Type: Grant
    Filed: March 27, 2015
    Date of Patent: October 18, 2016
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Shunsuke Kurioka, Shingo Tsuruoka
  • Patent number: 9420742
    Abstract: A reaping machine includes a sickle bar that can rotate and at least one reaping blade arranged on the sickle bar. The reaping blade is supported so that it can pivot on a pin fastened to the sickle bar. The pin has a fastening section for fastening to the sickle bar and a holding section separated by a shoulder from the fastening section for holding the reaping blade so that it can pivot. To simplify the placement or installation of the pin on the sickle bar, at least one raised section extending in the radial direction past a circumferential segment of the pin is formed in the fastening section of the pin.
    Type: Grant
    Filed: January 20, 2015
    Date of Patent: August 23, 2016
    Assignee: Deere & Company
    Inventor: Hector Geraldo Martinez
  • Patent number: 9338942
    Abstract: A replaceable mower blade for attachment to a mounting member operatively connected to a mower is provided. The blade includes a central portion having opposing side edges, a top surface, and a bottom surface. The blade also includes a tip portion extending from the central portion. The central portion includes at least one attachment mechanism for operatively connecting the blade to the mounting member.
    Type: Grant
    Filed: November 14, 2014
    Date of Patent: May 17, 2016
    Assignee: MTD PRODUCTS INC
    Inventors: Jimmy N. Eavenson, Sr., Axel Schaedler, Dave Hein, Robert L. Jira, Jr.
  • Patent number: 9307695
    Abstract: A cutter blade for a mower is driven to rotate about a vertical axis inside a housing. The cutter blade includes a blade body, a blade portion formed in the blade body and a wind generating portion formed in the blade body on its side opposite in a width direction thereof to the side where the blade portion is formed, the wind generating portion being formed by being raised and bent from the blade body over a predetermined area from an end in a longitudinal direction thereof. At an outer end portion of the wind generating portion in the longitudinal direction of the blade body, there is formed at least one recessed portion recessed more inwards than the remaining portion of the outer end portion.
    Type: Grant
    Filed: February 27, 2014
    Date of Patent: April 12, 2016
    Assignee: Kubota Corporation
    Inventors: Hironobu Nishihara, Masayuki Akita
  • Patent number: 9307697
    Abstract: A replaceable mower blade assembly for attaching to a rotatable spindle, motor, or engine crankshaft is provided. The blade assembly includes a mounting member having a plurality of ends extending from a central bore that is configured to receive the spindle, motor, or engine crankshaft. Each end includes an indexing aperture and a plurality of caps. A locking mechanism is operatively connected to the mounting member, and each arm of the locking mechanism includes a pin. A cutting blade is removably attachable to each end of the mounting member and the cutting blade includes an indexing aperture and a plurality of keyhole apertures. Each pin of the locking mechanism is insertable and engageable with an indexing aperture of both the mounting member and the cutting blade for positively securing each cutting blade.
    Type: Grant
    Filed: November 14, 2014
    Date of Patent: April 12, 2016
    Assignee: MTD PRODUCTS INC
    Inventors: Jimmy N. Eavenson, Sr., Axel Schaedler, Dave Hein, Robert L. Jira, Jr.
  • Patent number: 9210838
    Abstract: An apparatus and method is provided for removing a retained member from a rotary head assembly configured for attachment to a rotary power source.
    Type: Grant
    Filed: June 1, 2011
    Date of Patent: December 15, 2015
    Inventor: Orlando Jerez
  • Patent number: 9113595
    Abstract: A lawn care device may include a cutting deck housing at least one blade, a rotatable shaft, and a blade mount operably coupled to the rotatable shaft. The blade mount may include at least one engagement slot configured to enclose at least a portion of the at least one blade. The blade mount may further include at least one protruding member disposed within the engagement slot to secure the at least one blade within the engagement slot responsive to insertion of the at least one blade into the engagement slot.
    Type: Grant
    Filed: April 27, 2012
    Date of Patent: August 25, 2015
    Assignee: HUSQVARNA AB
    Inventors: Chris Roth, Darren Chandler, Lennie Rhoades, Steve Brinkman, Sean Dwyer
  • Patent number: 9113594
    Abstract: A replaceable blade assembly includes an arm that may be coupled to a lawn mower. A blade is removably coupled to the arm so the blade may be moved by the arm. A clip is removably coupled to the arm so the clip may retain the blade on the arm.
    Type: Grant
    Filed: December 3, 2012
    Date of Patent: August 25, 2015
    Inventors: John Delmont, Ruth Delmont
  • Patent number: 9038359
    Abstract: A rotary implement includes a metallic body that is rotatable around an axis. The metallic body includes a tapered leading edge having an interface surface and an opposite, free surface. The metallic body has a first composition. A metallic layer has a first side surface that is attached to the interface surface and a free, second side surface opposite from the first side surface. The metallic layer has a second, different composition from the first composition. A rotary machine can include an actuator and the rotary implement operably coupled to the actuator. A method for making a rotary implement includes providing the metallic body that has the tapered leading edge having the interface surface and the opposite, free surface. The metallic layer is then attached to the interface surface of the metallic body.
    Type: Grant
    Filed: November 12, 2012
    Date of Patent: May 26, 2015
    Assignee: Deere & Company
    Inventors: Brent A. Augustine, James W. Musser, Amber Resch
  • Patent number: 9003754
    Abstract: A stalk reducer bar and an assembly that supports, transports, and rotatably drives a stalk reducer bar in typical environments in which an area of vegetation is to be trimmed are provided. The stalk reducer bar reduces the size of cut stalk segments such as grass stalks segments generated during a lawn mowing operation and includes a carrier body. The carrier body includes a further working portion having a plurality of projections and angular movement of the carrier body in the cutting plane operates to bring the first blade section into stalk cutting engagement with stalks extending from the surface supporting organic matter thereon and operates to bring the plurality of projections of the further working portion into shredding engagement with cut stalks.
    Type: Grant
    Filed: September 24, 2014
    Date of Patent: April 14, 2015
    Inventor: John Robert Fogle, III
  • Publication number: 20150068185
    Abstract: A replaceable mower blade for attachment to a mounting member operatively connected to a mower is provided. The blade includes a central portion having opposing side edges, a top surface, and a bottom surface. The blade also includes a tip portion extending from the central portion. The central portion includes at least one attachment mechanism for operatively connecting the blade to the mounting member.
    Type: Application
    Filed: November 14, 2014
    Publication date: March 12, 2015
    Inventors: Jimmy N. Eavenson, SR., Axel Schaedler, Dave Hein, Robert L. Jira, JR.
  • Publication number: 20150068184
    Abstract: A replaceable mower blade assembly for attaching to a rotatable spindle, motor, or engine crankshaft is provided. The blade assembly includes a mounting member having a plurality of ends extending from a central bore that is configured to receive the spindle, motor, or engine crankshaft. Each end includes an indexing aperture and a plurality of caps. A locking mechanism is operatively connected to the mounting member, and each arm of the locking mechanism includes a pin. A cutting blade is removably attachable to each end of the mounting member and the cutting blade includes an indexing aperture and a plurality of keyhole apertures. Each pin of the locking mechanism is insertable and engageable with an indexing aperture of both the mounting member and the cutting blade for positively securing each cutting blade.
    Type: Application
    Filed: November 14, 2014
    Publication date: March 12, 2015
    Inventors: Jimmy N. Eavenson, SR., Axel Schaedler, Dave Hein, Robert L. Jira, JR.
  • Patent number: 8973274
    Abstract: A trimmer head for use with a plurality of lengths of flexible cutting line in a flexible line rotary trimmer having a plurality of line holders rotatably mounted thereon. Each line holder defines a pair of laterally spaced apertures in an upper surface thereof, a passageway extending longitudinally therethrough, terminating in an extended end thereof and communicating with the laterally spaced apertures. An interior guide surface extends along a curvilinear path from the spaced apertures to the passageway and a web extends between the apertures whereby end portions of lengths of cutting line can be extended into and through the spaced openings, along the guide surfaces into and through the passageway and outwardly therefrom, whereupon lengths of line extend about and are held against the web with portions of the line projecting from the passageways in the line holders for the cutting of vegetation.
    Type: Grant
    Filed: January 23, 2013
    Date of Patent: March 10, 2015
    Assignee: Proulx Manufacturing, Inc.
    Inventor: Richard A. Proulx
  • Publication number: 20150052869
    Abstract: A lawn care device may include a cutting deck housing at least one blade, a rotatable shaft, and a blade mount operably coupled to the rotatable shaft. The blade mount may include at least one engagement slot configured to enclose at least a portion of the at least one blade. The blade mount may further include at least one protruding member disposed within the engagement slot to secure the at least one blade within the engagement slot responsive to insertion of the at least one blade into the engagement slot.
    Type: Application
    Filed: September 27, 2012
    Publication date: February 26, 2015
    Inventors: Chris Roth, Darren Chandler, Lennie Rhoades, Steve Brinkman, Sean Dwyer
  • Patent number: 8935909
    Abstract: A replaceable mower blade for attachment to a mounting member operatively connected to a mower is provided. The blade includes a central portion having opposing side edges, a top surface, and a bottom surface. The blade also includes a tip portion extending from the central portion. The central portion includes at least one attachment mechanism for operatively connecting the blade to the mounting member.
    Type: Grant
    Filed: February 14, 2013
    Date of Patent: January 20, 2015
    Assignee: MTD Products Inc
    Inventors: Jimmy N. Eavenson, Sr., Axel Schaedler, Dave Hein, Robert L. Jira, Jr.
  • Patent number: 8931248
    Abstract: A replaceable mower blade assembly for attaching to a rotatable spindle, motor, or engine crankshaft is provided. The blade assembly includes a mounting member having a plurality of ends extending from a central bore that is configured to receive the spindle, motor, or engine crankshaft. Each end includes an indexing aperture and a plurality of caps. A locking mechanism is operatively connected to the mounting member, and each arm of the locking mechanism includes a pin. A cutting blade is removably attachable to each end of the mounting member and the cutting blade includes an indexing aperture and a plurality of keyhole apertures. Each pin of the locking mechanism is insertable and engageable with an indexing aperture of both the mounting member and the cutting blade for positively securing each cutting blade.
    Type: Grant
    Filed: June 12, 2012
    Date of Patent: January 13, 2015
    Assignee: MTD Products Inc
    Inventors: Jimmy N. Eavenson, Sr., Axel Schaedler, Dave Hein, Robert L. Jira, Jr.
  • Patent number: 8893461
    Abstract: A rectangular counter knife with a larger diameter hole, the counter knife has two lateral, longitudinal, parallel, rectangular and vertical walls inferiorly forming a rectangular recess, the two rectangular, inferior and transversal guides of the rotating disk, support the rectangular knife, adjusting a hex-nut in a larger diameter hole, coincident to the hole, receiving these holes on inferior-superior direction, a hex-head screw initially by-pass one of the two holes centralized along one rectangular knife with two side cutting edges and their ends have, a constructive variant comprising a rectangular knife with a longitudinal, central and oblong opening, with two central, opposite and semi-circular projections forming a circular central opening in the middle of the knife; the rectangular knife has two side cutting edges and two cutting edges on the ends.
    Type: Grant
    Filed: June 1, 2010
    Date of Patent: November 25, 2014
    Assignee: Blount, Inc.
    Inventor: Walter Nikkel
  • Patent number: 8869369
    Abstract: The invention is essentially a quick-change blade carrier for a blade mounted to a rotary drive shaft (such as on a mower) has an internally threaded bore. The carrier includes a housing linked by its cap to the rotary drive shaft, and enclosing a blade-locking member having a blade-locking tip downstanding from its underside; the device also includes a locking means (such as a compression spring) to bias the blade-locking member (and tip) downward through a center hole in the blade held within a channel in the bottom of the housing.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: October 28, 2014
    Inventor: Jacob J Roach
  • Patent number: 8857038
    Abstract: A quick connect apparatus for connecting a knife to a rotary disc cutterhead comprising a spring-loaded connector and a locking device which, when installed, prevents unintentional release of the knife from the cutterhead. The quick connector with locking device replaces a conventional bolted connection and reduces the time necessary to remove and reinstall a knife on a rotary cutterhead compared to a bolted knife connector while improving knife retention compared to known quick-change knife connection mechanisms.
    Type: Grant
    Filed: September 7, 2011
    Date of Patent: October 14, 2014
    Assignee: CNH Industrial America LLC
    Inventor: Jeffrey Fay, II
  • Publication number: 20140230397
    Abstract: A lawn care device may include a cutting deck housing at least one blade, a rotatable shaft, and a blade mount operably coupled to the rotatable shaft. The blade mount may include at least one engagement slot configured to enclose at least a portion of the at least one blade. The blade mount may further include at least one protruding member disposed within the engagement slot to secure the at least one blade within the engagement slot responsive to insertion of the at least one blade into the engagement slot.
    Type: Application
    Filed: September 27, 2012
    Publication date: August 21, 2014
    Inventors: Chris Roth, Darren Chandler, Lennie Rhoades, Steve Brinkman, Sean Dwyer
  • Publication number: 20140223877
    Abstract: A lawn care device may include a cutting deck housing at least one blade, a rotatable shaft, and a blade mount operably coupled to the rotatable shaft. The blade mount may include at least one engagement slot configured to enclose at least a portion of the at least one blade. The blade mount may further include at least one protruding member disposed within the engagement slot to secure the at least one blade within the engagement slot responsive to insertion of the at least one blade into the engagement slot.
    Type: Application
    Filed: April 27, 2012
    Publication date: August 14, 2014
    Inventors: Chris Roth, Darren Chandler, Lennie Rhoades, Steve Brinkman, Sean Dwyer
  • Publication number: 20140208710
    Abstract: A lawn care device may include a cutting deck housing at least one blade, a rotatable shaft, and a blade mount operably coupled to the rotatable shaft. The blade mount may include at least one engagement slot configured to enclose at least a portion of the at least one blade. The blade mount may further include at least one protruding member disposed within the engagement slot to secure the at least one blade within the engagement slot responsive to insertion of the at least one blade into the engagement slot.
    Type: Application
    Filed: March 28, 2014
    Publication date: July 31, 2014
    Applicant: HUSQVARNA AB
    Inventors: Chris Roth, Darren Chandler, Lennie Rhoades, Steve Brinkman, Sean Dwyer
  • Patent number: 8776489
    Abstract: A quick-change mowing blade arrangement is provided. The mowing blade has a shaped feature and a hole which maintain a certain spacing X from one another. For installation, the mowing blade is held, by means of the hole, pivotally on a head of a peg. If the head) undergoes an impermissible amount of wear, the shaped feature is no longer hidden by a cover of the mowing cutter disc, but becomes visible.
    Type: Grant
    Filed: March 21, 2012
    Date of Patent: July 15, 2014
    Assignee: Deere & Company
    Inventor: Heinrich Tepe
  • Publication number: 20140182258
    Abstract: Mowing device for plants, comprising at least one rotor with a rotor axis, in particular a vertical rotor axis or first rotation axis, and at least one blade which is driven in rotation by the rotor, in which the blade is attached to a blade holder, which is attached to the rotor so as to be rotatable about a second rotation axis which is situated at a radial distance from the rotor axis.
    Type: Application
    Filed: March 5, 2014
    Publication date: July 3, 2014
    Applicant: LELY PATENT N.V.
    Inventor: Maarten KOORN
  • Patent number: 8745879
    Abstract: A trimmer head assembly and the method of configuring the trimmer head assembly. The trimmer head assembly has a housing that attaches to a string trimmer machine. A spool is provided inside the housing. The spool rotates about an axis of rotation. The spool can move longitudinally along the axis of rotation between a first position and a second position. A ratcheting mechanism is provided between the trimmer head housing and the spool. When the spool is in its first position, the ratcheting mechanism enables the spool to continuously rotate about the axis of rotation in the direction opposite that in which the trimmer head assembly spins. The ratchet mechanism also prevents the spool from rotating within the housing in the same direction in which the trimmer head is spinning.
    Type: Grant
    Filed: May 31, 2011
    Date of Patent: June 10, 2014
    Inventor: George E. Alliss
  • Patent number: 8738237
    Abstract: A control system is provided for starting electrically powered implements on a vehicle such as a grass mowing machine with electrically powered cutting reels. The electric motors are started at intervals, rather than simultaneously. The intervals between starting each electric motor may be based on pre-defined criteria such as a fixed time constant, voltage, current or speed input from a motor controller for each implement.
    Type: Grant
    Filed: February 28, 2008
    Date of Patent: May 27, 2014
    Assignee: Deere & Company
    Inventor: Robert A. Henson
  • Patent number: 8726966
    Abstract: An adhesive substance removing tool is provided with a cracking tool and a scrapping assembly which are removably coupled to a base. The cracking tool is used to crack the adhesive substance by forming breaking lines on the surface of the adhesive substance, and then the scrapping assembly is used to scrape off the adhesive substance by starting from the breaking lines. The combination of the cracking tool and the scraping assembly allows the user to remove adhesive substance easily and completely. Besides, the cutting assembly of the cracking tool is able to move freely both in straight-line or circular fashion, and the cracking tool can be prevented from rotating or disengaging once it is positioned in place on the base. Hence, convenience and safety of use can both be assured.
    Type: Grant
    Filed: January 28, 2013
    Date of Patent: May 20, 2014
    Inventor: Eric Liao
  • Publication number: 20140130473
    Abstract: A rotary implement includes a metallic body that is rotatable around an axis. The metallic body includes a tapered leading edge having an interface surface and an opposite, free surface. The metallic body has a first composition. A metallic layer has a first side surface that is attached to the interface surface and a free, second side surface opposite from the first side surface. The metallic layer has a second, different composition from the first composition. A rotary machine can include an actuator and the rotary implement operably coupled to the actuator. A method for making a rotary implement includes providing the metallic body that has the tapered leading edge having the interface surface and the opposite, free surface. The metallic layer is then attached to the interface surface of the metallic body.
    Type: Application
    Filed: November 12, 2012
    Publication date: May 15, 2014
    Applicant: DEERE & COMPANY
    Inventors: Brent A. Augustine, James W. Musser, Amber Resch
  • Patent number: 8707665
    Abstract: A mowing device for plants includes at least one rotor with a first rotation axis, and at least one blade which is driven in rotation by the rotor, in which the blade is attached to a blade holder during normal operation. By a blade pivot pin or shaft that is situated at a radial distance from the first rotation axis. This allows the blade to be freely rotatable through at least a predetermined angle. The blade pin can be displaced radially inwards. The blade holder is connected to the rotor about a latent dedicated second rotation axis; and the first and second rotation axes and the blade pivot pin determine a triangle in a plane of projection at right angles to the first rotation axis.
    Type: Grant
    Filed: May 25, 2012
    Date of Patent: April 29, 2014
    Assignee: Lely Patent N.V.
    Inventor: Maarten Koorn
  • Patent number: 8695316
    Abstract: A crop harvesting header has a cutter bed to cut crop material as the harvester advances through a field. The cutter bed includes a plurality of rotatable cutters having knives extending from opposing ends of the cutters. Each cutter is ninety degrees out of phase with respect to its adjacent cutters such that the circular paths of travel of the knives of adjacent cutters overlap one another, and adjacent cutters rotate in opposite directions. Each cutter has a generally elliptical knife carrier, and a pair of knives at opposites ends of the carrier, wherein a portion of each knife extends beyond the end of the carrier to expose a cutting surface to sever the standing crop. The cutter also includes an attachment device connecting each knife to the knife carrier, and a fixed stop restricting rotational movement of the knife with respect to the carrier about the attachment device.
    Type: Grant
    Filed: February 17, 2012
    Date of Patent: April 15, 2014
    Assignee: AGCO Corporation
    Inventors: Martin E. Pruitt, Brendon Nafziger, James W. Schroeder
  • Patent number: 8649954
    Abstract: A system for controlling angular position of stator blades including: a mechanism for calculating a set angular position of the blades according to one of speeds; and a module for correcting the set position including: a mechanism for determining the angular position of the blades; a mechanism for measuring fuel flow rate of the turbine engine; a memory unit in which consecutive angular positions of the blades are combined with the fuel flow rates of the turbine engine measured at the angular positions; and a mechanism for determining a correcting angle according to the difference between the fuel flow rates measured between two consecutive angular position of the blades. A method for optimizing the common angular position can utilize the system.
    Type: Grant
    Filed: September 23, 2010
    Date of Patent: February 11, 2014
    Assignee: SNECMA
    Inventors: David Julien Boyer, Cedrik Djelassi, Julien Alexis Louis Ricordeau
  • Patent number: 8640588
    Abstract: A generally cylindrical cutting head for a weed cutting machine has blades that are exposed and lifted off of the head when an upper portion is rotated, with respect to a lower portion and/or a cap, without tools and without disassembly of the structure. A lock ensures that the upper portion does not open until desired, by a rigid plate or aim extending, in the locked position, through portions of both the upper portion and the lower portion, or through portions of both the upper portion and a cap portion. The lock plate/arm may extend into the cutting head from the top, bottom, or side. When pushed inward, the lock plate or arm moves to no longer reside in both upper and lower portions, or both upper and cap portions, to free the upper portion to rotate relative to the lower portion and cap.
    Type: Grant
    Filed: February 1, 2011
    Date of Patent: February 4, 2014
    Inventor: Gordon Strader
  • Patent number: 8615977
    Abstract: A rotary lawn mower blade that enhances the process of cutting, grinding, and ejecting lawn debris for the purpose of real-time nutrient recycling and visual aesthetics. The embodiment consists of a leading edge, interrupted transition, and an interrupted trailing face. The leading edge is maintained by sharpening the cutting edge until it intersects the bottom of the embodiment. The transition and trailing face has random interruptions of self-cleaning, sharp, jagged teeth that protrude above the blade surface. The jagged teeth are arranged to optimize the interaction between the clipping and the embodiment for the purpose of shredding and grinding. Centrifugal forces shear and grind the lawn clippings as they translate across the blade surface. The end result is an embodiment that shears and grinds lawn debris into small particles that break down in the environment at an accelerated rate to optimize the recycling process and augment visual appearance.
    Type: Grant
    Filed: March 24, 2012
    Date of Patent: December 31, 2013
    Inventor: Anthony C. Campione
  • Publication number: 20130333344
    Abstract: A rotary lawn mower cutting blade with reduced drag and improved cutting ability includes a central mounting section, intermediate sections, and outboard sections along a common longitudinal axis and disposed about a common center of rotation. The outboard sections include downward and inward projecting sections. The cutting blade also preferably includes cutting edges on the full extent of the leading edge of the outboard section including the downward and inward projecting sections. Additionally, the outer section can be twisted slightly to enhance airflow upward.
    Type: Application
    Filed: May 21, 2013
    Publication date: December 19, 2013
    Inventor: Wayne Arthur Smith
  • Publication number: 20130327008
    Abstract: A replaceable mower blade for attachment to a mounting member operatively connected to a mower is provided. The blade includes a central portion having opposing side edges, a top surface, and a bottom surface. The blade also includes a tip portion extending from the central portion. The central portion includes at least one attachment mechanism for operatively connecting the blade to the mounting member.
    Type: Application
    Filed: February 14, 2013
    Publication date: December 12, 2013
    Applicant: MTD Products Inc.
    Inventors: Jimmy N. Eavenson, SR., Axel Schaedler, Dave Hein, Robert L. Jira, JR.