Cutter Assemblage Or Cutter Element Therefor (e.g., Chain Saw Chain) Patents (Class 83/830)
  • Patent number: 9744684
    Abstract: A machine tool separating device, in particular a handheld machine separating device, includes at least one cutting strand and at least one guide unit. The cutting strand, viewed along a direction running at least substantially perpendicular to a cutting plane of the cutting strand, has a maximum dimension less than 4 mm.
    Type: Grant
    Filed: March 2, 2012
    Date of Patent: August 29, 2017
    Assignee: Robert Bosch GmbH
    Inventor: Rudolf Fuchs
  • Patent number: 9027451
    Abstract: Embodiments herein provide a drive link having a conditioning portion to be used in conjunction with one or more dresser links of a saw chain to condition a sharpening element. The dresser links may include left and right dresser links configured to contact the sharpening element in first and second contact regions which may not overlap, leaving a gap. The conditioning portion of the drive link may contact the sharpening element in a third contact region that includes at least a portion of the gap between the first and second contact regions.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: May 12, 2015
    Assignee: Blount, Inc.
    Inventor: Mike Goettel
  • Publication number: 20150122102
    Abstract: A method for producing a cutting unit segment of a cutting unit of a machine tool separating device, includes at least one cutter support element and at least one cutter element. In at least one step, the cutter element is molded on the cutter support element by a drawing process in an at least partially staggered manner relative to an outer surface of the cutter support element.
    Type: Application
    Filed: January 4, 2013
    Publication date: May 7, 2015
    Inventors: Uwe Engelfried, Milan Bozic, Petr Grulich
  • Publication number: 20150075349
    Abstract: A machine tool separating device has at least one cutting line. The cutting line has a changing cutting edge angle geometry along one cutting direction of the cutting line.
    Type: Application
    Filed: March 5, 2013
    Publication date: March 19, 2015
    Inventor: Milan Bozic
  • Publication number: 20150059190
    Abstract: A machine tool separating device, in particular a manual machine tool separating device, includes at least one cutting train that comprises at least one cutter-support element and at least one connecting element that is integrally formed with the cutter-support element. The cutter-support element has at least one transverse securing element that is configured to secure the cutter-support element against a transverse movement relative to another cutter-support element of the cutting train to the greatest extent possible in the assembled state.
    Type: Application
    Filed: January 4, 2013
    Publication date: March 5, 2015
    Inventors: Uwe Engelfried, Petr Grulich
  • Patent number: 8960178
    Abstract: A cutting chain for a hand-operated implement for cutting metal and mineral materials such as a stone cutter has central connecting links which are connected to one another by lateral connecting links. The central connecting links comprise first central connecting links which each have a drive tooth. The cutting chain has two central connecting links with drive teeth shaped differently to the drive teeth on the first central connecting links; or located a different distance from the leading drive teeth; or having no drive teeth. A hand-operated implement for cutting mineral materials has a drive motor which drives the cutting chain around a guide bar by a drive sprocket. The cutting chain is guided round part of the circumference of the drive sprocket and round a nose sprocket on the guide bar. The drive sprocket or nose sprocket have different first and second areas matched to the cutting chain.
    Type: Grant
    Filed: October 12, 2012
    Date of Patent: February 24, 2015
    Assignee: Andreas Stihl AG & Co. KG
    Inventors: Jochen Buchholtz, Matthias Schulz, Helmut Zimmermann
  • Patent number: 8955505
    Abstract: A chain bar unit for a wall saw is presented herein. The chain bar unit can include a bar configured to receive a circulating chain or wire around a perimeter of the bar. The chain bar unit also can include a driving gear for driving the chain or wire around the bar, the driving gear configured to be coupled to an output shaft of the wall saw. The chain bar unit further includes the bar being tapered from an end proximate to the driving gear to a distal end having a distal end radius, wherein a width of the bar at the proximate end, is at least two times the distal end radius of the distal end.
    Type: Grant
    Filed: February 3, 2012
    Date of Patent: February 17, 2015
    Assignee: Husqvarna AB
    Inventor: Andreas Jonsson
  • Patent number: 8887604
    Abstract: Embodiments herein provide a dresser link for a saw chain that is configured to condition a sharpening element. The dresser link may include a conditioning element with an outer edge that is offset from an outer side of the dresser link. The conditioning element may include a horizontal relief angle and/or a vertical relief angle. The saw chain may further include a cutter link having a cutting element. The horizontal and/or vertical relief angle may facilitate maintenance of a clearance between the cutting element and the conditioning element after wear of the cutting element and conditioning element.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: November 18, 2014
    Assignee: Blount, Inc.
    Inventor: Mike Goettel
  • Publication number: 20140298963
    Abstract: What is disclosed is a circular core for a rotary or circular saw typically used in rescue type operations for cutting openings in building material and featuring alternating pockets on the circumference of the core for the placement of drive links of a chain having cutting segments such that the pockets alternate between pockets on each side of the circular core.
    Type: Application
    Filed: April 8, 2013
    Publication date: October 9, 2014
    Inventor: THOMAS J. RUZICH
  • Publication number: 20140260875
    Abstract: Embodiments herein provide formed wire tie strap for a saw chain. Embodiments also provide a saw chain including one or more formed wire tie straps. The formed wire tie strap may include a body with one or more integrated rivets extending from the body. In some embodiments, the body may be substantially flat. The rivet may include a rivet head configured to engage a rivet hole of an opposing tie strap and a shoulder configured to engage a rivet hole of a connecting link, such as a drive link. Some embodiments of the formed wire tie strap may include a pair of integrated rivets extending from the body. Some embodiments may include a rivet hole disposed in the body of the formed wire tie strap.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Applicant: BLOUNT, INC.
    Inventors: Michael D. Harfst, Christopher D. Seigneur
  • Patent number: 8746118
    Abstract: Embodiments provide various components of a chain saw, including saw chain elements, sprockets, and other fixtures, that may facilitate sharpening of cutter links during operation. In various embodiments, the components may increase stability during sharpening, provide nose mounted sharpening fixtures, and/or facilitate the resizing and/or reshaping of a sharpening element.
    Type: Grant
    Filed: June 25, 2009
    Date of Patent: June 10, 2014
    Assignee: Blount, Inc.
    Inventors: Chris Seigneur, Mike Goettel, Michael Patterson
  • Publication number: 20140150621
    Abstract: The present invention discloses a chain segment for a chain tool comprising a plurality of members consecutively connected therebetween. Each member has a median plane M disposed parallel between a first and a second flank of the member, bisecting the member thickness. Adjacent median planes M of adjacent members are disposed parallel with respect to each other and displaced therefrom by the member thickness.
    Type: Application
    Filed: November 30, 2012
    Publication date: June 5, 2014
    Inventors: Genady Rabinovich, Ran Gur
  • Publication number: 20140137716
    Abstract: Embodiments herein provide a dresser link for a saw chain that is configured to condition a sharpening element. The dresser link may include a conditioning element with an outer edge that is offset from an outer side of the dresser link. The conditioning element may include a horizontal relief angle and/or a vertical relief angle. The saw chain may further include a cutter link having a cutting element. The horizontal and/or vertical relief angle may facilitate maintenance of a clearance between the cutting element and the conditioning element after wear of the cutting element and conditioning element.
    Type: Application
    Filed: March 13, 2013
    Publication date: May 22, 2014
    Applicant: BLOUNT, INC.
    Inventor: Mike Goettel
  • Publication number: 20140123827
    Abstract: A method for producing at least one cutting line segment of a cutting line, having at least one cutter support element and one cutter element, comprises, in a first step at least one powder is mixed with at least one binder in a mixing device to produce a feedstock.
    Type: Application
    Filed: March 2, 2012
    Publication date: May 8, 2014
    Applicant: Robert Bosch GmbH
    Inventors: Rudolf Fuchs, Ivo Gruber, Joe Lauber, Urs Karlen, Milan Bozic, Arnold Hug
  • Patent number: 8689666
    Abstract: Various embodiments of the present disclosure generally provide a drive link for a saw chain including a body portion adapted to couple to adjacent side links and a tang extending from the body and sized to engage a guide bar groove. The tang may include a through hole extending from a first tang side to a second tang side and including a through hole center. In various embodiments, a material directing feature may be disposed adjacent to the through hole on at least one of the first side and second side of the tang. The material directing feature may include a recession in the tang which encourages oil and/or wood chips to pass through the through hole.
    Type: Grant
    Filed: November 5, 2010
    Date of Patent: April 8, 2014
    Assignee: Blount, Inc.
    Inventors: Mike Goettel, Scott Ferguson
  • Publication number: 20140090532
    Abstract: Embodiments herein provide a drive link having a conditioning portion to be used in conjunction with one or more dresser links of a saw chain to condition a sharpening element. The dresser links may include left and right dresser links configured to contact the sharpening element in first and second contact regions which may not overlap, leaving a gap. The conditioning portion of the drive link may contact the sharpening element in a third contact region that includes at least a portion of the gap between the first and second contact regions.
    Type: Application
    Filed: March 13, 2013
    Publication date: April 3, 2014
    Applicant: BLOUNT, INC.
    Inventor: Mike Goettel
  • Patent number: 8661695
    Abstract: The claimed invention relates to a device in a guide bar (10) for a chain saw. The guide bar (10) comprises at least two layers (11, 12, 13) that are bounded by an adhesive material. To ensure that the layer of adhesive material gets the optimal thickness is one of the surfaces of the layers that will be bounded to each other provided with several protruding parts (17). The protruding parts (17) will generate a slot, with the same width as the height of the protruding parts, for the adhesive material when the layers are put together. This is important to ensure maximum strength in the bounding as well as a constant width of a groove (14) for the saw chain.
    Type: Grant
    Filed: November 26, 2002
    Date of Patent: March 4, 2014
    Assignee: Husqvarna AB
    Inventors: Roger Hermansen, John Flaten, Lennart Ekrud, Terje Berget
  • Publication number: 20140013918
    Abstract: Embodiments provide various saw chain links which may be combined to form a utility saw chain. In various other embodiments, cutting system fixtures are disclosed which may facilitate the cutting of pipes and other materials from an axis point.
    Type: Application
    Filed: September 13, 2013
    Publication date: January 16, 2014
    Applicant: BLOUNT, INC.
    Inventors: James Yancey, Charlie Bailey, Todd Gerlach
  • Patent number: 8602015
    Abstract: A cutting chain for cutting concrete and other similar materials having wear and stretch resistant features. In one embodiment, the cutting chain can include chain links having a debris trap for hindering the entry of debris onto bearing surfaces. In one embodiment, side links and a center link can have cooperating members forming a maze-like debris trap and can include a lubricant and/or other barrier material. In a particular arrangement, side links can have annular ribs which can be partially received in annular grooves on a center link to create the maze-like debris trap. In another embodiment, the cutting chain can include chain links having anti-rotation structures to hinder rotation of the fastener relative to the side links. In a particular arrangement, side links can have a protrusion or slot for cooperating with a complementary mating slot or protrusion on the fastener.
    Type: Grant
    Filed: January 25, 2010
    Date of Patent: December 10, 2013
    Inventor: John Michelon
  • Publication number: 20130319201
    Abstract: A cuffing chain for cutting mineral and metal materials has central chain links and lateral connecting links. The cutting chain has connecting pins with a central section which has a diameter that is greater than the diameter of openings in adjacent connecting links. The cutting chain has two connecting links which have a supporting section instead of a cutting element. At least two second connecting links positioned adjacent to one another at right angles to the direction of travel of the cutting chain are formed separately from one another. As a result, the cutting chain can be opened for maintenance and repairs despite the use of collar studs as connecting pins.
    Type: Application
    Filed: October 12, 2012
    Publication date: December 5, 2013
    Applicant: ANDREAS STIHL AG & CO. KG
    Inventor: Matthias Schulz
  • Publication number: 20130269673
    Abstract: A cutting chain for a hand-operated implement for cutting metal and mineral materials such as a stone cutter has central connecting links which are connected to one another by lateral connecting links. The central connecting links comprise first central connecting links which each have a drive tooth. The cutting chain has two central connecting links with drive teeth shaped differently to the drive teeth on the first central connecting links; or located a different distance from the leading drive teeth; or having no drive teeth. A hand-operated implement for cutting mineral materials has a drive motor which drives the cutting chain around a guide bar by a drive sprocket. The cutting chain is guided round part of the circumference of the drive sprocket and round a nose sprocket on the guide bar. The drive sprocket or nose sprocket have different first and second areas matched to the cutting chain.
    Type: Application
    Filed: October 12, 2012
    Publication date: October 17, 2013
    Applicant: ANDREAS STIHL AG & CO. KG
    Inventor: ANDREAS STIHL AG & CO. KG
  • Patent number: 8555869
    Abstract: Embodiments of the disclosure provide a saw chain having a pitch in the range of approximately 0.440 to approximately 0.450. Embodiments also include tie straps and/or other components having fluid distribution features.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: October 15, 2013
    Assignee: Blount, Inc.
    Inventors: Ian S. Osborne, James L. Vanderzanden
  • Publication number: 20130112057
    Abstract: Embodiments of the disclosure provide a saw chain having a pitch in the range of approximately 0.440 to approximately 0.450. Embodiments also include tie straps and/or other components having fluid distribution features.
    Type: Application
    Filed: December 21, 2012
    Publication date: May 9, 2013
    Applicant: BLOUNT, INC.
    Inventor: Blount, Inc.
  • Patent number: 8387261
    Abstract: A rotating cutting head includes multiple, separate, spaced-apart, parallel loops of chainsaw chains positioned around a central hub. The hub is attached to a spindle of a lawn edger. A safety shield is provided adjacent to the rotating cutting head. As the cutting head rotates, the chainsaw chains cut the tree roots. The rotating cutting head is used for resurfacing exposed tree roots to avoid tripping hazards and tree root strike damage to residential and commercial lawn maintenance equipment.
    Type: Grant
    Filed: March 26, 2012
    Date of Patent: March 5, 2013
    Assignee: RBGone Inc.
    Inventors: Jeff Carl Voyer, William Donald Peacock
  • Patent number: 8342163
    Abstract: Embodiments of the disclosure provide an aggregate cutting saw chain having a pitch in the range of approximately 0.440 to approximately 0.450. Embodiments also include tie straps and/or other components having fluid distribution features.
    Type: Grant
    Filed: August 22, 2008
    Date of Patent: January 1, 2013
    Assignee: Blount, Inc.
    Inventors: Ian S. Osborne, James L. Vanderzanden
  • Patent number: 8256335
    Abstract: A saw chain which is reversible having adjacent chain sections each having a pair of cutting links with cutting teeth disposed on opposite sides of the chain having flanged cutting teeth extending over the chain. The cutting edge on the pairs of cutting teeth on adjacent sections are oppositely disposed so that when the chain becomes dulled it can be reversed on the chain saw bar to reverse the chain sections to place sharp teeth in the cutting position and the previously used teeth are in a non-cutting position.
    Type: Grant
    Filed: May 19, 2010
    Date of Patent: September 4, 2012
    Inventor: Wyatt Canon
  • Publication number: 20120180906
    Abstract: A rotating cutting head includes multiple, separate, spaced-apart, parallel loops of chainsaw chains positioned around a central hub. The hub is attached to a spindle of a lawn edger. A safety shield is provided adjacent to the rotating cutting head. As the cutting head rotates, the chainsaw chains cut the tree roots. The rotating cutting head is used for resurfacing exposed tree roots to avoid tripping hazards and tree root strike damage to residential and commercial lawn maintenance equipment.
    Type: Application
    Filed: March 26, 2012
    Publication date: July 19, 2012
    Applicant: RBGONE INC.
    Inventors: JEFF C. VOYER, WILLIAM D. PEACOCK
  • Publication number: 20120132051
    Abstract: A saw chain for cutting aggregate materials comprises a plurality of identically shaped interconnected links. Each link has first and second ends configured such that a first end of one link is connected to a second end of an adjacent link of the saw chain. The first end of each link includes spaced apart tabs, and the second end of each link includes a tab. The second end tab of each link is dimensioned to be pivotally received between the first end tabs of an adjacent link. A plurality of fasteners interconnects the links, the fasteners being configured to at least partially protect the saw chain protecting the links against impacts.
    Type: Application
    Filed: November 23, 2011
    Publication date: May 31, 2012
    Applicant: Diamond Products, Limited
    Inventor: Karl H. Moller
  • Patent number: 8176643
    Abstract: According to a chain saw braking system, engagement between a front end portion of a belt and a main body by an engagement member is released at the time of application of an impact. When a front end portion is pulled by the spring force of a compression coil spring, an elongate hole for protrusion is engaged with a protrusion to restrict a rear end portion from being moved in the same direction as the front end portion. Thus, it is possible to strongly tighten a drum by the belt to thereby reliably stop the movement of a chain. With this arrangement, the chain can be prevented from being damaged when a chain saw is accidentally dropped onto the ground due to an impact applied thereto.
    Type: Grant
    Filed: October 19, 2006
    Date of Patent: May 15, 2012
    Assignee: Husqvarna Zenoah Co Ltd.
    Inventor: Atsushi Harada
  • Patent number: 8146474
    Abstract: A quick change cutting link of a saw chain for cutting wood comprises a base member adapted to be pivotally connected to other links of the saw chain. The base member comprises a seat surface. A cutting member comprising a “V” notch releasably engages the seat surface of the base member. Attached to the “V” notch is a carbide tip, including a cutting edge. The carbide tip is accurately placed in the “V” notch by mating with a small piece of metal in the “V” notch. The carbide tip is then sinterbrazed to the cutting member. The cutting member and seat surface may also comprise an inverted L-shaped protrusion and the other includes an inverted L-shaped recess for receiving the inverted L-shaped protrusion. The inverted L-shaped protrusion and recess may be designed so as to form a wedge.
    Type: Grant
    Filed: May 22, 2008
    Date of Patent: April 3, 2012
    Assignee: Indigo Innovators, Inc.
    Inventor: David Szymanski
  • Patent number: 8136436
    Abstract: In various embodiments, a saw chain is provided that includes a rail engaging link that has an offset footprint within the link itself and/or with respect to other links in the chain that are adapted to ride on the same rail. Saw chains as provided may be used in a variety of applications, including but not limited to wood cutting and aggregate cutting applications.
    Type: Grant
    Filed: November 14, 2007
    Date of Patent: March 20, 2012
    Assignee: Blount, Inc.
    Inventors: Ian Osborne, Mike Harfst, Christopher Seigneur
  • Patent number: 8096216
    Abstract: A chain-type flexible cutting edge, particularly for bush-cutter is described, comprising at least one linear connecting and cutting link (3) and at least one toothed connecting and cutting link (5) mutually connected in an articulated manner in order to have a smooth cutting-start edge (TL) and a toothed cutting-start edge (TD).
    Type: Grant
    Filed: October 6, 2009
    Date of Patent: January 17, 2012
    Inventor: Michele Piccolo
  • Publication number: 20120005901
    Abstract: A cutting assembly of a chainsaw includes a saw chain and a guide bar (4) for guiding the saw chain (3) along a peripheral edge (5) of the guide bar. The saw chain (3) has drive links (6) having drive bases (7) which with their side surfaces (8, 8?) are slidingly guided between the side walls (9) of a guide groove (10) of the guide bar (4) with the formation of a friction pairing. Lubricant pockets (11) are formed in the side surface (8). The lubricant pockets (11) are only open toward the corresponding side wall (9) of the guide groove (10) and are otherwise closed. Offside the lubricant pockets (11), the side surface (8) has a flat sliding surface (12) which slides on the side wall (9) of the guide groove (10). The lubricant pocket (11) has a mean diameter and a maximum depth. The ratio of the mean diameter to the maximum depth lies in a range of 5.0 up to and including 25.0.
    Type: Application
    Filed: July 7, 2011
    Publication date: January 12, 2012
    Inventors: Oliver Gerstenberger, Berthold Schell, Alexander Fuchs, Jan Föhrenbach
  • Publication number: 20110314979
    Abstract: A plurality of bushings are coupled to one another via a series of bolts to provide an interlocking, articulating cutter. The bolts have a cylindrical end and a convex end. The convex ends are seated inside a concave socket coupled to the bushings. The cylindrical ends are coupled to a convex nut seated inside another concave socket coupled to an adjacent bushing. The convex ends of the bolts are configured to articulate inside the seat of the concave sockets. A washer may be placed between the bushings to provide a desired amount of flexibility and/or rigidity. The outer surface of the bushing comprises a cutting structure, such as a milled or clad cutting structure.
    Type: Application
    Filed: June 29, 2010
    Publication date: December 29, 2011
    Inventors: William A. Bisso, IV, Tjerko Jurgens
  • Publication number: 20110308371
    Abstract: There are provided a fixed-abrasive grain saw wire with a superior cutting performance and a manufacturing method thereof. Particularly, there are provided a fixed-abrasive grain saw wire with abrasive grains adhered to a metal wire via a Zn-based or Sn-based low-melting-point metal and a high-melting-point metal having a melting point higher than that of the low-melting-point metal, and a manufacturing method thereof.
    Type: Application
    Filed: December 18, 2009
    Publication date: December 22, 2011
    Applicant: NIPPON STEEL MATERIALS CO., LTD.
    Inventors: Mitsuru Morita, Hiroaki Sakamoto, Masamoto Tanaka, Kohei Tatsumi
  • Publication number: 20110226112
    Abstract: The invention concerns a method for a sawchain and a sawchain. According to the method according to the invention, a sawchain intended to be used for a sawing arrangement for a forestry harvester in order to prevent the whip-like movement of a sawchain that breaks during sawing, is achieved through a method that comprises the steps:—that the sawchain (1) is provided with a means (20) of limiting pivoting that allows a forwardly located link (3, 4, 5, 2) of the sawchain to pivot in a first direction relative to the subsequent link (3, 4, 5, 2) while limiting the ability of the forwardly located link to pivot in an opposite second direction relative to the subsequent link,—that the sawchain (1) is driven around a guide bar (9) with the aid of a driving wheel that is located at one end of the guide bar,—that sawing of a tree trunk is carried out through the guide bar (9) being turned around an axis of rotation.
    Type: Application
    Filed: September 25, 2008
    Publication date: September 22, 2011
    Applicant: KOMATSU FOREST AB
    Inventors: Tommy Englund, Per Hedström
  • Patent number: 8006598
    Abstract: A saw chain for a chain saw is disclosed. Embodiments include a drive link that may be used in a saw chain, wherein the drive link includes a tail and a concavity that complements a depth gauge of a trailing cutting link, reducing and/or minimizing the drive link's protrusion into a gullet space of the cutting link. Embodiments of the invention may help improve cutting performance and further help reduce kickback potential.
    Type: Grant
    Filed: November 16, 2009
    Date of Patent: August 30, 2011
    Assignee: Blount, Inc.
    Inventors: Mike Goettel, Arlan Way
  • Publication number: 20110100188
    Abstract: Various embodiments of the present disclosure generally provide a drive link for a saw chain including a body portion adapted to couple to adjacent side links and a tang extending from the body and sized to engage a guide bar groove. The tang may include a through hole extending from a first tang side to a second tang side and including a through hole center. In various embodiments, a material directing feature may be disposed adjacent to the through hole on at least one of the first side and second side of the tang. The material directing feature may include a recession in the tang which encourages oil and/or wood chips to pass through the through hole.
    Type: Application
    Filed: November 5, 2010
    Publication date: May 5, 2011
    Applicant: BLOUNT, INC.
    Inventors: Mike Goettel, Scott Ferguson
  • Patent number: 7891279
    Abstract: A saw chain rivet is provided including a flange, and a hub extending from a side of the flange. A shoulder defined by a junction between the hub and the flange has properties optimized to resist shear forces. The hub may be optimized for ease of rivet head formation.
    Type: Grant
    Filed: December 4, 2006
    Date of Patent: February 22, 2011
    Assignee: Blout, Inc.
    Inventors: Chris Seigneur, David Scott Penrose, Michael Goettel
  • Publication number: 20100288098
    Abstract: A cutting apparatus with a ring saw which can easily carry out a high-speed cutting by rotating while applying an impact force, crushing a base rock, a stone, a concrete or the like, and cutting while flicking the crushed portion is provided. Further, a user-friendly cutting apparatus with a ring saw which can easily carry out an operation at a time of attaching as an attachment to a shovel type excavating machine such as a backhoe or the like is also provided. The cutting apparatus with the ring saw in accordance with this invention is a cutting apparatus with a ring saw provided with a cutting blade, and a driving step rotationally driving the ring saw around a center axis thereof, in which the ring saw is supported to a support body attached to an apparatus main body so as to freely oscillate in a cutting and traveling direction, and an impact applying step is provided so as to apply an impact force to a subject to be cut from a cutting blade of the ring saw under rotation.
    Type: Application
    Filed: December 16, 2008
    Publication date: November 18, 2010
    Inventor: Kazumasa Matsuura
  • Publication number: 20100224047
    Abstract: The invention relates to a chainsaw having chain links (1), such as chain links and connecting links, wherein the chain links (1) comprise rivet openings (2), in which pins (3) are disposed that form jointed connections between the chain links (1), and wherein at least one sealing means (4) is provided around each of the rivet openings (2) between the surfaces of the chain links (1) facing each other, and wherein the sealing means (4) is also directly connected on a chain link (1) and thus only one sealing surface is formed against the chain link positioned on the opposite side. The invention further relates to a method for the production of a chainsaw having the above mentioned chain links (1).
    Type: Application
    Filed: October 25, 2008
    Publication date: September 9, 2010
    Inventors: Karl Prodinger, Wolfgang Neumayer, Ingo Freithofnigg
  • Publication number: 20100213298
    Abstract: The present invention provides a transfer unit having a transfer rotor and a food waste treatment apparatus using the transfer unit. The transfer unit includes the transfer rotor, a housing and a sieve. The transfer rotor includes a rotor body, and at least one blade provided on the circumferential outer surface of the rotor body. The housing has a hollow container shape and contains the transfer rotor therein such that the transfer rotor is rotatable without interference from the housing. The housing is inclined at a predetermined angle with respect to the horizontal plane. The sieve is provided in the housing to guide discharge of sewage from food waste. The sieve is disposed in the lower portion of the housing to drain the sewage generated from the food waste to the outside of the housing.
    Type: Application
    Filed: February 10, 2010
    Publication date: August 26, 2010
    Applicant: WOONGJIN COWAY CO., LTD.
    Inventors: Myung Jin Park, Chang Young Lee, Dong Hee Jang
  • Publication number: 20100206286
    Abstract: A cutting chain for cutting concrete and other similar materials having wear and stretch resistant features. In one embodiment, the cutting chain can include chain links having a debris trap for hindering the entry of debris onto bearing surfaces. In one embodiment, side links and a center link can have cooperating members forming a maze-like debris trap and can include a lubricant and/or other barrier material. In a particular arrangement, side links can have annular ribs which can be partially received in annular grooves on a center link to create the maze-like debris trap. In another embodiment, the cutting chain can include chain links having anti-rotation structures to hinder rotation of the fastener relative to the side links. In a particular arrangement, side links can have a protrusion or slot for cooperating with a complementary mating slot or protrusion on the fastener.
    Type: Application
    Filed: January 25, 2010
    Publication date: August 19, 2010
    Inventor: John Michelon
  • Patent number: 7775144
    Abstract: A disc saw blade includes a saw chain mounted around the circumference of a circular disk, which saw chain is provided with driving links, connecting links and cutting links. Due to the driving links, the chain is guided in at least one chain groove arranged around the periphery of the disk. The bottom of the groove has radial projections distributed around the circumference, and the driving link has a cam surface on a projecting part that projects radially inwards, for interaction with the respective radial projection. The chain can move from a neutral position, in which the respective projecting part is loosely disposed between two adjacent radial projections, to a working position, in which the respective cam surfaces are in contact with the associated radial projections.
    Type: Grant
    Filed: October 13, 2004
    Date of Patent: August 17, 2010
    Assignee: Bracke Forest AB
    Inventor: Olle Hemmingson
  • Publication number: 20100050442
    Abstract: A chain-type flexible cutting edge, particularly for bush-cutter is described, comprising at least one linear connecting and cutting link (3) and at least one toothed connecting and cutting link (5) mutually connected in an articulated manner in order to have a smooth cutting-start edge (TL) and a toothed cutting-start edge (TD).
    Type: Application
    Filed: October 6, 2009
    Publication date: March 4, 2010
    Inventor: Michele Piccolo
  • Publication number: 20100005668
    Abstract: Embodiments provide various saw chain links which may be combined to form a utility saw chain. In various other embodiments, cutting system fixtures are disclosed which may facilitate the cutting of pipes and other materials from an axis point.
    Type: Application
    Filed: May 21, 2009
    Publication date: January 14, 2010
    Applicant: BLOUNT, INC.
    Inventors: James Yancey, Charlie Bailey, Todd Gerlach
  • Patent number: 7637192
    Abstract: A saw chain for a saw is disclosed. Embodiments include a drive link that may be used in a saw chain, wherein the drive link includes a tail and a concavity that complements a depth gauge of a trailing cutting link, reducing and/or minimizing the drive link's protrusion into a gullet space of the cutting link. Embodiments of the invention may help improve cutting performance and further help reduce kickback potential.
    Type: Grant
    Filed: October 23, 2007
    Date of Patent: December 29, 2009
    Assignee: Blount, Inc.
    Inventors: Mike Goettel, Arlan Way
  • Publication number: 20090255393
    Abstract: A saw chain rivet is provided including a flange, and a hub extending from a side of the flange. A shoulder defined by a junction between the hub and the flange has properties optimized to resist shear forces. The hub may be optimized for ease of rivet head formation.
    Type: Application
    Filed: June 18, 2009
    Publication date: October 15, 2009
    Applicant: BLOUNT, INC.
    Inventors: Chris Seigneur, David Scott Penrose
  • Patent number: 7516688
    Abstract: Hardened cutter elements commonly called cutters used in saw chains to act as cutter links. The hardened cutters have hard insets applied and connected to the cutting face of the cutter. The insets are made of a hard, tough material, such as a suitable carbide. Also shown are saw chains having the hardened cutter links with the hard insets. The preferred insets include a rear portion having a semi-cylindrical attachment surface. The attachment surface is configured for attachment to a filed or ground cutting face of a conventional saw chain cutter. A front portion of the inset has a cutting face which is provided with beveled cutting face corners and preferably chamfered edges extending rearwardly from the inset cutting face. Methods of producing the cutters with insets and for producing saw chains with the hardened cutters are also described.
    Type: Grant
    Filed: April 29, 2005
    Date of Patent: April 14, 2009
    Assignee: Unifire Power Blowers, Inc.
    Inventor: Daniel G. Raczykowski
  • Publication number: 20080110317
    Abstract: In various embodiments, a saw chain is provided that includes a rail engaging link that has an offset footprint within the link itself and/or with respect to other links in the chain that are adapted to ride on the same rail. Saw chains as provided may be used in a variety of applications, including but not limited to wood cutting and aggregate cutting applications.
    Type: Application
    Filed: November 14, 2007
    Publication date: May 15, 2008
    Applicant: BLOUNT, INC., A DELAWARE CORPORATION
    Inventors: Ian Osborne, Mike Harfst, Christopher Seigneur