Toothed Blade Or Tooth Therefor Patents (Class 83/835)
  • Patent number: 9702153
    Abstract: A reciprocating power tool including a housing supporting a motor having a drive shaft, a blade clamp mechanism, and a drive mechanism. The drive clamp mechanism is coupled to the motor for converting rotational motion of the drive shaft into reciprocating motion of the blade clamp mechanism. The power tool includes an accessory having an attachment portion coupled to the blade clamp mechanism, and a body portion extending from the attachment portion. A grout rake is coupled to the body portion and includes a plurality of cutter portions. The grout rake is repositionable relative to the body portion between a first position and a second position. In the first position one of the plurality of cutter portions is located in a working position for contacting a workpiece, and in the second position another one of the plurality of cutter portions is located in the working position for contacting the workpiece.
    Type: Grant
    Filed: February 8, 2013
    Date of Patent: July 11, 2017
    Assignee: MILWAUKEE ELECTRIC TOOL CORPORATION
    Inventor: Sean T. Kehoe
  • Patent number: 9688040
    Abstract: A method of preparing a closure for a product retaining container is disclosed along with the closure that is obtainable by the method. The present disclosure also relates to a use, in the manufacture of a closure, of a knife blade comprising a cutting edge region having a discontinuous cutting edge.
    Type: Grant
    Filed: June 6, 2013
    Date of Patent: June 27, 2017
    Assignee: NOMACORC LLC
    Inventors: Damon James Bost, Nisha Amol Keskar
  • Patent number: 9687997
    Abstract: A tooth is provided for a circular disc felling saw. The saw tooth may have a generally square pyramidal shape with tips at each of the four corners. Each of the tips has an enlarged tip region where the tip is stepped outward from the adjacent sides. The front face of the tip remains smoothly continuous. The enlarged, or built-out region extends rearwardly a greater distance than the lateral step out distance, and the rearward build-out portion is relieved on planes parallel to the main portions of the planar sides of the pyramid. The tooth may have both leading and trailing cutting tips. Either one or both of the primary and secondary cutting tips may include a wear insert, such as a ceramic wear insert.
    Type: Grant
    Filed: March 1, 2012
    Date of Patent: June 27, 2017
    Inventor: Maurice Micacchi
  • Patent number: 9603605
    Abstract: A cutting block for use in a bone osteotomy procedure is disclosed, and includes a first cutting guide surface, a second cutting guide surface, and a third cutting guide surface. The first, second, and third cutting guide surfaces are adapted to be temporarily affixed to a bone having a first side and a second side such that the first cutting guide surface is disposed on the first side of the bone, and such that the second cutting guide surface and third cutting guide surface are disposed on the second side of the bone forming an angle therebetween.
    Type: Grant
    Filed: August 28, 2013
    Date of Patent: March 28, 2017
    Assignee: Howmedica Osteomics Corp.
    Inventor: Carlos E. Collazo
  • Patent number: 9545679
    Abstract: A saw blade for an electric saw tool with a drive shaft making a reciprocating arcuate swing motion, the saw blade comprising a saw plate which has centrally a coupling part for connecting and fixing the saw plate to the drive shaft of the saw tool and has an appearance as being elliptic, and has cutting teeth on the outer periphery. Also, a saw blade for an electric saw tool with a drive shaft making a reciprocating arcuate swing motion, the saw blade having at one end a coupling part for connecting and fixing the saw blade to the drive shaft of the saw tool and having at the other end cutting teeth of the saw blade, and height of the cutting teeth being smaller in the order from near to at both ends of a line of the teeth.
    Type: Grant
    Filed: September 24, 2014
    Date of Patent: January 17, 2017
    Assignee: C. & E. Fein GmbH
    Inventor: Tamotsu Okada
  • Patent number: 9511431
    Abstract: Insert and a saw blade including the insert. The insert is formed in an elongated manner and includes a cutting edge on a front side, a cutting face with an elevation formed along a length of the insert from the cutting edge, and a mounting surface structured and arranged for a clamping element one of directly or indirectly adjoining the cutting face. The mounting surface is formed with a first partial surface and at least one of an upwardly projecting second partial surface that adjoins the first partial surface and tapering lateral surfaces that are arranged at a side of the first partial surface and along a length of the insert starting from the cutting edge.
    Type: Grant
    Filed: June 8, 2011
    Date of Patent: December 6, 2016
    Assignee: BOEHLERIT GmbH & Co.KG.
    Inventors: Walter Baernthaler, Martin Lukas, Andre Feiel, Bernhard Theischinger, Josef Zierler
  • Patent number: 9463518
    Abstract: A saw blade is provided including a circular metal disc including a circular metal disc including a central aperture and a plurality of teeth spaced around a periphery of the circular metal disc. A first plurality of fully enclosed body slots are generally equally spaced from a center of the circular metal disc by a first distance and a second plurality of fully enclosed body slots are each disposed directly radially outward from a respective one of the first plurality of body slots. The second plurality of slots are generally equally spaced from the center of the circular metal disc by a second distance greater than the first distance. The saw blade design provides a blade with no modal frequencies in the operating frequency range.
    Type: Grant
    Filed: January 23, 2012
    Date of Patent: October 11, 2016
    Assignee: Black & Decker Inc.
    Inventors: David Brutscher, Sajid A. Roomy, John Wells
  • Patent number: 9414845
    Abstract: A surgical cutting blade for cutting bone material when the blade is coupled to a hand-held surgical saw having protrusions extending therefrom that interface with the cutting blade. The cutting blade includes a distal end comprising a plurality of cutting teeth and a shank portion adjacent the distal end. It also includes a proximal end adjacent the shank portion. The proximal end is shaped to attach to the surgical saw and includes an upper substantially planar surface and a lower substantially planar surface and a side edge extending between the upper and lower planar surfaces. The side edge at least in part defines an outer perimeter extending about the proximal end. The outer perimeter includes a plurality of indentations forming openings configured to receive and interface with the protrusions of the surgical saw in a manner that the protrusions cooperatively impart motion to drive the blade.
    Type: Grant
    Filed: December 23, 2014
    Date of Patent: August 16, 2016
    Assignee: Medtronic PS Medical, Inc.
    Inventor: Christopher M. Boykin
  • Patent number: 9371851
    Abstract: A method of forming a joint for interconnecting adjacent elements comprises providing a first element defining at least one aperture extending from a first edge to a second edge through a thickness of the first element. The method further comprises mating a second element to the first element with the second element overlaying the at least one aperture of the first element at the second edge thereof such that the second element extends through the at least one aperture perpendicular to the first element with an excess portion of the second element extending beyond the first edge of the first element. Finally, the method comprises compressing the excess portion of the second element such that the second element is continuous across the at least one aperture and adjacent the first and second edges of the first element, thereby interlocking the first and second elements and forming the joint.
    Type: Grant
    Filed: June 20, 2014
    Date of Patent: June 21, 2016
    Assignees: SZUBA CONSULTING, INC., VALUE EXTRACTION LLC
    Inventor: Joseph Szuba
  • Patent number: 9364907
    Abstract: A jigsaw blade has an elongated body with a first and second end, a cutting edge and an opposing back edge. A plurality of teeth is formed on the cutting edge. The first tooth of the plurality of teeth is immediately adjacent the second end of the blade. The first tooth is raker tooth and has a rake face and a clearance face. The rake face and clearance face intersect to form a cutting edge of the first tooth. The second end defines a plunging nose. The second end includes a nose end surface that extends between the cutting edge and the back edge. The nose end surface is on an angle of about 35° with respect to a line defined by tips of the plurality of teeth. The nose end surface intersects the first tooth relief surface to form an angled cutting edge with a leading sharp point.
    Type: Grant
    Filed: December 3, 2008
    Date of Patent: June 14, 2016
    Assignee: Black & Decker Inc.
    Inventor: Brent L. Bucks
  • Patent number: 9333572
    Abstract: A tool is provided. The tool may include a handle, a frame, and a removable saw blade including at least one hole on one end thereof and at least one hole on another end thereof. The tool may also include a compensating clip configured to attach the removable saw blade to the frame and to provide tension for the removable saw blade. The compensating clip may include a plate including a clip hook, and the plate further includes an opening where a compensator spring is provided. The clip hook is configured to attach onto the at least one hole of the removable saw blade to attach the saw blade to the frame.
    Type: Grant
    Filed: May 21, 2012
    Date of Patent: May 10, 2016
    Assignee: Zippo Manufacutring Company
    Inventors: James M. McDonough, Howard Tripp, Neal Barnes, Brian J. Barber
  • Patent number: 9232949
    Abstract: A saw for pivoting a blade in a sagittal plane. The saw includes a drive assembly with at least one drive member. The drive assembly is configured to both reciprocate the blade in the sagittal plane and to simultaneously pivot the blade around an axis that extends through the sagittal plane. The drive assembly is configured to reciprocate and pivot the blade at different frequencies. Consequently the teeth (186) of the blade travel in a loop pattern that crosses itself.
    Type: Grant
    Filed: November 1, 2013
    Date of Patent: January 12, 2016
    Assignee: Stryker Corporation
    Inventors: Steven Carusillo, James G. Walen
  • Patent number: 9051744
    Abstract: The present invention is directed generally to tools that are made, at least in part, more durable, particularly one or more working surface(s) of the tools. For example, various tools such as trowels, knives, and scrapers may be made having at least a portion of their blades heat treated to make at least their working edges more durable and extend their useful lives. For example, in various embodiments, a putty knife, taping knife, or scraper blade may have at least one working surface or edge that has been at heat treated while an area of the blade where a handle is permanently attached is not heat treated.
    Type: Grant
    Filed: August 29, 2011
    Date of Patent: June 9, 2015
    Inventors: Scott A. Murray, Kevin A. Wolff
  • Publication number: 20150143705
    Abstract: A sawing power tool, in particular a sawing hand-held power tool, includes at least one clamping mechanism that is configured to fasten a saw blade to be driven with a stroke motion. In one embodiment, the at least one clamping mechanism fastens a compass saw blade that has a blade body which includes a cutting edge with cutting teeth and that has a fastening shaft. The at least one clamping mechanism has at least one geometric structure that forms a form-closure element that is configured to form a connection to at least one at least portionally inverse form-closure element of the saw blade.
    Type: Application
    Filed: November 22, 2014
    Publication date: May 28, 2015
    Inventor: Milan Bozic
  • Publication number: 20150135915
    Abstract: A saw blade for a machine tool driven oscillatingly about a longitudinal axis has at least one cutting edge, on which, at least in part, abrasive particles are provided. The saw blade is suitable, in particular, for sawing fiber composites.
    Type: Application
    Filed: November 14, 2014
    Publication date: May 21, 2015
    Inventor: Rainer Mann
  • Patent number: 9027452
    Abstract: An accessory for a power tool, includes a mounting portion configured to mate with an oscillating drive member of a power tool. A support arm portion extends from the mounting portion in a first direction. The support arm portion includes an inner edge that faces in a second direction transverse to the first direction. A blade portion extends from the support arm generally in the second direction. The blade portion includes a trailing edge arranged facing generally toward the mounting portion and a leading edge arranged facing generally away from the mounting portion. The trailing edge and the leading edge portion meet to define a pointed tip portion.
    Type: Grant
    Filed: December 27, 2011
    Date of Patent: May 12, 2015
    Assignee: Robert Bosch GmbH
    Inventors: Balazs Nagy, Jonathan Markwald, Edward Abante, Michael Landt, Saad Alam, Timothy Baker, Joshua Barhitte, Peter Denley
  • Publication number: 20150113814
    Abstract: A portable zero clearance circular saw including a motor flame portion with a transverse oriented drive shaft and arbor coupled to the drive shaft, a handle portion with, a hand grip coupled to the motor frame portion aft end, a planar blade deck on a first lateral side, a movable blade shield rotatably mounted coaxial with the drive shaft and having a sidewall with a edge face coplanar with the blade deck, a trigger proximate the hand grip to move the blade shield, and a blade couplable to the drive shaft against the arbor, such that the blade outer surface is flush with the blade deck and blade shield sidewall. The handle portion may be rotatably coupled to the motor frame portion, and may include two laterally disposed blade shield triggers operably coupled to the blade shield via a dual pulley system.
    Type: Application
    Filed: August 18, 2011
    Publication date: April 30, 2015
    Inventor: Jacob Cuzdey
  • Publication number: 20150101472
    Abstract: Methods and apparatus for making and using tools, for example concrete cutting blades, may use laminations. They may also include inserts, such as structural inserts, damping inserts and fluid flow elements. Fluid flow elements may include a tube, a transition element including an inlet fitting, a fluid pressure containment structure inserted into the channel of the blade, an added material resistant to effects of the fluid including plastics, coatings and films, and other structures. Additional nozzle structures may be included. Methods and apparatus for making and using tools including concrete cutting blades having improved damping characteristics may include inserts, plugs and other structures, including those made from materials softer or more ductile than the tool material.
    Type: Application
    Filed: June 20, 2014
    Publication date: April 16, 2015
    Applicant: HUSQVARNA OUTDOOR PRODUCTS, INC.
    Inventor: Anthony BARATTA
  • Publication number: 20150096422
    Abstract: A saw blade for an oscillating saw can include a plate having cutting teeth arranged in an arcuate tooth pattern at a cutting path. Cutting teeth on opposite sides of the centerline of the plate may be arranged to face oppositely. Each cutting tooth can have primary and secondary relief surfaces at different angles to the cutting path. Cutting teeth may be offset outwardly from the plate, with tips of some of the cutting teeth having outward-facing kerf surfaces parallel to the plate. The plate may be of bimetal construction, so that the cutting teeth and bulk of the plate are made of different materials. The cutting teeth may be formed by a coining process.
    Type: Application
    Filed: October 4, 2013
    Publication date: April 9, 2015
    Applicant: Toronto Saw Works Inc.
    Inventors: Robin Stoddart, Carlton Chong
  • Publication number: 20150082963
    Abstract: A sintered composite body of cemented carbide and cBN grains, wherein the cBN grains are dispersed in a cemented carbide matrix. The body further includes a cBN depleted zone extending 50-400 ?m from the surface of the body towards the core thereof. The mean cBN grain size outside the depleted zone is 1-20 ?m and the cBN content outside the depleted zone is 0.3-4 wt %.
    Type: Application
    Filed: March 6, 2013
    Publication date: March 26, 2015
    Inventors: Lei Yin, Alexander Hirsch, Yi Cui
  • Patent number: 8973478
    Abstract: A saw blade (4) for a machine operating with adjacent saw teeth traveling in two opposite and parallel directions comprises a blade substrate, teeth (16), and tooth necks (30) formed at the periphery of the substrate for holding the teeth (16) in place. Each tooth neck (30) has a protection surface (34), which is located in a plane that is parallel to the plane of the blade substrate (8), for protecting the tooth (16) against impact with any part of said adjacent saw blade. Each tooth (16) is located on the respective neck (30) in such a way that the tooth (16) is displaced from the protection surface (34) and from the adjacent saw blade in a direction normal to the plane of the protection surface (34).
    Type: Grant
    Filed: November 5, 2013
    Date of Patent: March 10, 2015
    Assignee: Indocean Diamond Tools Limited
    Inventor: Hans Ericsson
  • Publication number: 20150053055
    Abstract: A system, a method and a cutting apparatus may use a bit to cut an object. The apparatus may have a bit connected to a cutting block on a cutting apparatus. The cutting apparatus may rotate about the object while the bit may advance into the object to cut the object. The cutting apparatus may have another bit located opposite to the bit to bevel an edge of the object. The cutting system may reduce point loads and/or provide an equalized load. The cutting system may reduce tool pressures when cutting a pipe and may provide extended tool and/or bit life.
    Type: Application
    Filed: August 22, 2013
    Publication date: February 26, 2015
    Applicant: Mactech, Inc.
    Inventors: Sam Schammel, Joel Kent Wittenbraker
  • Publication number: 20150000497
    Abstract: A saw blade includes a plate with teeth. A tip pocket is formed in each of the teeth where the tip pocket has a first end and a second end and a continuously curved surface between the first end and the second end. A tip has a back face shaped to match the continuously curved surface. A joint joins the tip to the plate where the joint extends for substantially the length of the surface of the tip pocket and the back face. The continuously curved surface may have a wave profile. A top face of the tip and a peripheral face of the tooth may be coplanar.
    Type: Application
    Filed: June 20, 2014
    Publication date: January 1, 2015
    Inventors: David Philip Engvall, Craig Davidson
  • Publication number: 20140377021
    Abstract: A saw tooth for a saw blade that is attached in a longitudinal direction thereof on the saw blade body to extend away, at least in part, from the saw blade body. The saw tooth is formed with a cutting-face part having a cutting face, a height of which extends in the longitudinal direction and a width of which extends perpendicularly to the longitudinal direction. The width of the cutting face is greater than a height of the cutting face.
    Type: Application
    Filed: May 27, 2014
    Publication date: December 25, 2014
    Applicant: ALBERT KNEBEL GMBH & CO. KG HOLDING
    Inventor: Alexander Knebel
  • Patent number: 8915499
    Abstract: An accessory for coupling to an attachment mechanism of an oscillating power tool includes a working end, an opposite rear end, and a fitment portion adjacent the rear end portion. The fitment portion includes a generally U-shaped opening having a central portion and a rearward portion open to the rear end, and configured to receive a post of a tool clamping mechanism. The fitment portion further includes a first plurality of openings in communication with and extending radially outward from the central portion, a second plurality of openings not in communication with and positioned radially outward from the central portion. The central portion, the first plurality of openings, and the second plurality of openings are configured to couple the fitment portion to a plurality of different configurations of attachment mechanisms for oscillating power tools.
    Type: Grant
    Filed: August 2, 2013
    Date of Patent: December 23, 2014
    Assignee: Black & Decker Inc.
    Inventors: Thomas R. Kaye, Jr., James R. Niblett
  • Publication number: 20140325855
    Abstract: A saw blade includes a blade base with an arcuate cutting edge. The cutting edge is curved to a lesser extent than a circular arc with a radius that corresponds to the distance between the axis of rotation of the saw blade and the cutting edge.
    Type: Application
    Filed: July 16, 2012
    Publication date: November 6, 2014
    Applicant: Robert Bosch GmbH
    Inventor: Milan Bozic
  • Patent number: 8875611
    Abstract: A tool for parting, in particular for sawing, includes a carrier blade that has a toothing portion with a finite, geometrically determined toothing, and a receiver for fixing the carrier blade to a tool spindle of a power tool. The tool spindle can be driven in oscillation about its longitudinal axis. The toothing is disposed at a distance from the receiver and is configured to be advanced perpendicularly in relation to the longitudinal axis, such that the toothing is realized in a non-uniform manner along the toothing portion. The toothing portion has a middle region and end regions that adjoin the middle region and that are provided with strengthened corner teeth.
    Type: Grant
    Filed: March 11, 2011
    Date of Patent: November 4, 2014
    Assignee: C. & E. Fein GmbH
    Inventor: Rainer Mann
  • Patent number: 8869669
    Abstract: The saw blade according to the invention comprises a plurality of teeth spaced apart from each other by chip spaces, wherein at least some chip spaces have pimple-shaped bulges.
    Type: Grant
    Filed: August 26, 2009
    Date of Patent: October 28, 2014
    Inventor: Werner Kwanka
  • Publication number: 20140283667
    Abstract: A reciprocating saw blade includes a body, an attachment portion coupled to a first end portion of the body, and a cutting portion formed on the body. The cutting portion includes a plurality of cutting teeth. Each cutting tooth includes a tip, a rake face, and a relief surface. The tips of the plurality of cutting teeth define a plane. The saw blade also includes a plunge point formed on a second end portion of the body for initiating a plunge cut. The plunge point includes a leading tooth and a second tooth. The leading tooth includes a tip and a rake face and defines a leading gullet. The second tooth is positioned in the leading gullet closer to the leading tooth than to a nearest cutting tooth of the plurality of cutting teeth. The second tooth includes a tip that is spaced apart from the plane.
    Type: Application
    Filed: June 4, 2014
    Publication date: September 25, 2014
    Applicant: Milwaukee Electric Tool Corporation
    Inventors: Robert W. Butzen, Austin J. Kazda, Andrew J. Schulz
  • Publication number: 20140283666
    Abstract: A circular saw blade, includes a base plate and tips. A coating selected from the group consisting of molybdenum disulfide, tungsten disulfide, Teflon, and any combination thereof is applied on the tips.
    Type: Application
    Filed: August 29, 2012
    Publication date: September 25, 2014
    Applicants: Bosch Power Toolls (China ) Co., Ltd., Robert Bosch GmbH
    Inventors: Liansheng Zhu, Xianhong Yu
  • Publication number: 20140260878
    Abstract: A circular saw includes a circular disk-shaped body with an outer periphery having saw teeth separated by gullets and saw tooth tips at the saw teeth. The saw tooth tips have a saw kerf. At least one of the gullets has a radially innermost margin at a first radius. The body has a thickness discontinuity at a second radius, the second radius being at least equal to the first radius. The body has a first thickness adjacent to and radially outside of the thickness discontinuity and a second thickness adjacent to and radially inside of the thickness discontinuity. The second thickness is greater than the first thickness. The ratio of the difference between the second thickness and the first thickness, and the difference between the kerf and the first thickness is equal to or greater than 0.25.
    Type: Application
    Filed: May 31, 2013
    Publication date: September 18, 2014
    Inventor: Warren M. Bird
  • Publication number: 20140260882
    Abstract: A saw blade comprising cutting teeth, having at least one of chip-limiters protruding from the teeth or secondary teeth in the gullets of the cutting teeth configured to mitigate the blade from over-feeding. The chip limiters and/or secondary teeth provide that only a limited portion of an object that the saw blade encounters during cutting falls below the cutting tips of the cutting teeth. The chip limiters and/or secondary teeth also assist the cutting teeth in cutting.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Inventors: Asif Elliston, William B. Korb, Stephen A. Hampton, Douglas K. Fosberg, Charles E. Kalomeris
  • Publication number: 20140260876
    Abstract: A saw tooth for mounting onto a holder of a circular saw or of a mower drum is provided. The tooth has a mounting end for mounting against a component of the holder, a cutting end, opposite to the mounting end, the cutting end being provided with at least one cutting edge; and a plurality of sides extending from the mounting end to the cutting end. The plurality of sides include at least one holder side operatively mountable against the holder and at least one outer side opposite to the holder side the outer side being non-linear, diverging from the mounting end to the cutting end and having a contour slope which increases from the mounting end to the cutting end. The tooth thereby provides a greater clearance at its mounting end, and a greater kerf at its cutting end.
    Type: Application
    Filed: April 23, 2013
    Publication date: September 18, 2014
    Applicant: PRENBEC EQUIPMENT INC.
    Inventors: Charles MACLENNAN, Robert MACLENNAN, Denis RIOUX, Stephane LAROUCHE
  • Publication number: 20140260880
    Abstract: A reciprocating saw blade that includes an elongated blade body defining an inner end and a distal end, a cutting edge located on one side of the blade body and extending between the inner and distal ends thereof and a tang located at the inner end of the blade body. The tang projects from the blade body at an acute angle of at least about 3° relative to a line tangent to an inner end of the cutting edge. The cutting edge includes a portion defining a substantially curved contour and optionally can include at least one further portion defining a non-curved contour.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 18, 2014
    Inventors: Stephen A. Hampton, William B. Korb, Asif Elliston, Douglas K. Fosberg
  • Publication number: 20140260879
    Abstract: A hacksaw blade has a blade body that includes a cutting edge. One cutting-edge section is embodied in a concavely curved manner and at least one further cutting-edge section is embodied in a non-concave manner.
    Type: Application
    Filed: March 7, 2014
    Publication date: September 18, 2014
    Applicant: Robert Bosch GmbH
    Inventors: Daniel Grolimund, Wilfried Kern, Martin Kocher
  • Publication number: 20140260881
    Abstract: A method of manufacturing a saw blade includes providing a coil stock, setting a first portion of the coil stock in a first direction, setting a second portion of the coil stock in a second direction opposite the first direction, and forming a plurality of cutting teeth in the first portion and the second portion of the coil stock after the first and second portions are set.
    Type: Application
    Filed: March 17, 2014
    Publication date: September 18, 2014
    Applicant: Milwaukee Electric Tool Corporation
    Inventor: James P. Horne
  • Publication number: 20140260877
    Abstract: A circular saw blade comprises a generally circular body defining cutting teeth at a periphery thereof. First apertures in the body define a first mounting hole pattern for receiving mounting pins of a first circular saw machine defining a first mounting pin pattern thereof for mounting the circular saw blade thereto. Second apertures in the body define a second mounting hole pattern different than the first mounting hole pattern for receiving mounting pins of a second circular saw machine defining a second mounting pin pattern thereof different than the first mounting pin pattern for mounting the circular saw blade thereto. At least one of the first apertures and at least one of the second apertures are (i) at least one of (a) radially and (b) circumferentially displaced from each other; and (ii) at least one of (a) overlap and (b) are connected to each other.
    Type: Application
    Filed: May 6, 2013
    Publication date: September 18, 2014
    Inventor: Kenneth Hall
  • Publication number: 20140251109
    Abstract: A saw blade with saw teeth arranged along a rectilinear tooth side of a blade support. The saw blade includes at least one damping area.
    Type: Application
    Filed: June 20, 2012
    Publication date: September 11, 2014
    Applicant: Robert Bosch GmbH
    Inventor: Milan Bozic
  • Patent number: 8826790
    Abstract: A saw blade including a base and a plurality of teeth extending generally outwardly from the base. At least one of the plurality of teeth comprises a first and a second portion. The first portion includes a cutting tip having an initial rake angle and the second portion includes a cutting tip having a second rake angle greater than the initial rake angle. The second portion is disposed closer to the base than the first portion.
    Type: Grant
    Filed: July 9, 2009
    Date of Patent: September 9, 2014
    Assignee: The L.S. Starrett Company
    Inventors: Keith Mabon, Andrew Lee
  • Publication number: 20140245874
    Abstract: The invention concerns a pair of saw blades, including a first blade and a second blade, which are arranged to rotate around the same rotational axis in opposite directions. Each of the blades has its own blade body and peripheral cutting elements, wherein the blade body of the first blade has a front side, which is turned towards a back side of the blade body of the second saw blade, and wherein the cutting elements form overhangs protruding from said front or back side. Said front and/or back side have/has a circumferential ridge, which is arranged peripherally inside of the cutting elements and to slide over a corresponding part or a corresponding ridge on the opposite back side and/or front side, wherein the ridge/ridges is/are made in one piece with the blade body in question and serves/serve as a spacer means to prevent the cutting elements with their overhangs to hit each other during rotation of the blades.
    Type: Application
    Filed: May 13, 2014
    Publication date: September 4, 2014
    Applicant: TWINBLADE TECHNOLOGIES HOLDING SWEDEN AB
    Inventor: Hans ERICSSON
  • Patent number: 8818257
    Abstract: A cutting apparatus configured to cut a sheet or a sheet bundle includes a cutting blade whose blade surface has a plurality of grooves. In the cutting apparatus, a scraping member enters the grooves provided on the blade surface to scrape off cutting scraps remaining after a cutting operation. Accordingly, the cutting apparatus can scrape off cutting scraps from the cutting blade even if the adhesive force of the cutting scraps is great.
    Type: Grant
    Filed: June 28, 2010
    Date of Patent: August 26, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kiyoshi Watanabe, Kenichi Hayashi, Yusuke Obuchi, Rikiya Takemasa, Akito Sekigawa
  • Patent number: 8776659
    Abstract: A reciprocating saw blade includes a body defining a longitudinal axis, an attachment configured to couple to a reciprocating saw, and a cutting portion. The cutting portion includes a plurality of cutting teeth, each having a tip and a rake face. The saw blade also includes a plunge point for initiating a plunge cut. The plunge point includes a leading tooth having a tip and a rake face extending from the tip. The tips of the plurality of cutting teeth and the tip of the leading tooth define a plane that is generally parallel to the longitudinal axis. A first angle between the plane and the rake face of the leading tooth, measured through the leading tooth, is greater than 90 degrees. A second angle between the plane and the rake face of each cutting tooth, measured through the corresponding cutting tooth, is less than 90 degrees.
    Type: Grant
    Filed: August 9, 2012
    Date of Patent: July 15, 2014
    Assignee: Milwaukee Electric Tool Corporation
    Inventors: Robert W. Butzen, Austin J. Kazda, Andrew J. Schulz
  • Publication number: 20140165812
    Abstract: A saw-blade comprises a disc and a plurality of tooth holders. The saw blade disc has a plurality of receiving stations with at least one recess with an indentation extending tangentially from a radially inner leading edge portion thereof. Each one of the tooth holders has a protrusion extending tangentially from a radially inner leading edge portion thereof. The tooth holders are engageable in the receiving stations of the saw blade disc with the protrusions of the tooth holders being inserted in the indentation of the receiving stations.
    Type: Application
    Filed: July 27, 2012
    Publication date: June 19, 2014
    Applicant: 9293-3720 QUÉBEC INC.
    Inventor: Alain Jacques
  • Publication number: 20140150620
    Abstract: A saw blade having a blade body, a plurality of cutting teeth defining a cutting edge along an edge of the blade body, each tooth along the cutting edge defining a cutting tip. At least one tooth tip along the cutting edge includes a different material, such as, for example, high speed steel, carbide, diamond, and/or a tip coating, than at least one other tooth tip along the cutting edge. The plurality of teeth may be arranged in a repeating pattern or in no pattern along the cutting edge. A method of manufacturing the saw blade includes forming a cutting edge along an axial edge of a blade body, defined by a plurality of cutting teeth having respective tooth cutting tips, wherein at least one tooth tip along the cutting edge includes a different material than at least one other tooth tip along the cutting edge.
    Type: Application
    Filed: November 30, 2012
    Publication date: June 5, 2014
    Applicant: IRWIN INDUSTRIAL TOOL COMPANY
    Inventors: Asif Elliston, Stephen A. Hampton, Mark T. Cranna, Kenneth Hall
  • Patent number: 8701536
    Abstract: A saw blade includes a circular core having a plurality of cutting elements along its periphery, and a central arbor hole. One or more offset gullets extend radially inward from the perimeter of the core. Each offset gullet includes a first opening in one side of the core and a second opening in the other side of the core. The first and second openings are adjacent but at least partially offset from one another, so that at least a portion of the offset gullet is not see-through.
    Type: Grant
    Filed: January 21, 2009
    Date of Patent: April 22, 2014
    Assignees: Saint-Gobain Abrasives, Inc., Saint-Gobain Abrasifs
    Inventor: Andre R. G. Heyen
  • Publication number: 20140102276
    Abstract: Saw blades, including band saw blades, reciprocating saw blades, hole saw blades and hand hack saw blades, are made from a bi-metal strip. The bi-metal strip includes a cutting edge defined by a plurality of cutting teeth that is welded to an axially-elongated carbon or spring steel backing. The cutting edge is formed of a high speed steel alloy consisting essentially of: about 8/10% to about 1% carbon, up to about 45/100% silicon, up to about 4/10% manganese, up to about 3/100% phosphorous, up to about 3/100% sulfur, about 4% to about 6% cobalt, about 3% to about 5% chromium, about 4-1/2% to about 5-1/2% molybdenum, about 1% to about 2-1/2% vanadium, about 5-1/2% to about 7% tungsten, and about 74% to about 78-1/2% iron.
    Type: Application
    Filed: October 16, 2013
    Publication date: April 17, 2014
    Applicant: Irwin Industrial Tool company
    Inventors: Mark J. Wysk, Arthur C. Reardon
  • Patent number: 8689667
    Abstract: A reciprocating saw blade for use with a reciprocating saw includes a body defining a longitudinal axis, an attachment portion configured to couple to the reciprocating saw, and a cutting portion formed on the body. The cutting portion includes a plurality of cutting teeth. Each cutting tooth includes a tip, a rake face extending from the tip generally toward the longitudinal axis and defining a gullet, and a relief surface extending from the tip. The blade also includes a plunge point formed on the body for initiating a plunge cut. The plunge point includes a leading tooth and a second tooth. The leading tooth includes a tip and a rake face extending from the tip generally toward the longitudinal axis and defining a leading gullet. The second tooth is positioned in the leading gullet adjacent the leading tooth and is generally smaller than the leading tooth and each cutting tooth.
    Type: Grant
    Filed: April 22, 2011
    Date of Patent: April 8, 2014
    Assignee: Milwaukee Electric Tool Corporation
    Inventors: Robert W. Butzen, Austin J. Kazda, Andrew J. Schulz
  • Patent number: 8677873
    Abstract: A planar band saw blade having an outer cutting edge with a plurality of saw teeth also includes sets of secondary teeth placed in cutout portions along a centerline of the band saw blade. The secondary tooth sets provide portions within the body of the saw blade that provide additional cutting action that reinforces the primary outer cutting edge of the blade. The band saw blade may include teeth on each parallel edge and the interior tooth sets in each cutout portion alternatively point toward opposite edges.
    Type: Grant
    Filed: October 22, 2008
    Date of Patent: March 25, 2014
    Assignee: Eugene Carbide Saw Service, Inc.
    Inventors: John Souza, Ross Souza, Rod Souza
  • Publication number: 20140060280
    Abstract: The present invention relates to pair of saw blades, comprising a first saw blade and a second saw blade which are coaxial and rotating in opposite directions, wherein each saw blade comprises a circular blade body and saw teeth at periphery of the blade body, a gap is arranged between the first saw blade and the second saw blade, the first blade body of the first saw blade is provided with a protrusion protruding toward the second saw blade, and the second blade body of the second saw blade is provided with a groove corresponding to the protrusion. Therefore, it is difficult to cause interference between the two saw blades even though either of the saw blades is deformed.
    Type: Application
    Filed: February 25, 2013
    Publication date: March 6, 2014
    Applicant: Foshan Nanhai Sun Rising Tools Manufacturing Co., Ltd.
    Inventor: Foshan Nanhai Sun Rising Tools Manufacturing Co., Ltd.
  • Publication number: 20140053704
    Abstract: A saw blade (4) for a machine operating with adjacent saw teeth traveling in two opposite and parallel directions comprises a blade substrate, teeth (16), and tooth necks (30) formed at the periphery of the substrate for holding the teeth (16) in place. Each tooth neck (30) has a protection surface (34), which is located in a plane that is parallel to the plane of the blade substrate (8), for protecting the tooth (16) against impact with any part of said adjacent saw blade. Each tooth (16) is located on the respective neck (30) in such a way that the tooth (16) is displaced from the protection surface (34) and from the adjacent saw blade in a direction normal to the plane of the protection surface (34).
    Type: Application
    Filed: November 5, 2013
    Publication date: February 27, 2014
    Applicant: INDOCEAN DIAMOND TOOLS LIMITED
    Inventor: Hans ERICSSON