Plural Cutting Edge Patents (Class 30/353)
  • Patent number: 11697859
    Abstract: The present invention discloses a method for manufacturing a manual tool, comprising: performing dual-frequency induction quenching on a first surface of a moment output part or a moment transmission part of the manual tool such that a quench-hardened layer is formed within a first depth range from the first surface of the moment output part to the interior of the moment output part or within a first depth range from the first surface of the moment transmission part to the interior of the moment transmission part, the hardness of the quench-hardened layer being higher than that of the body of the moment output part or the moment transmission part; the dual-frequency induction quenching being configured to simultaneously feed or introduce a high-frequency current and an intermediate-frequency current to the same induction coil to simultaneously heat the first surface of the moment output part or the first surface of the moment transmission part by the high-frequency current and the intermediate-frequency curre
    Type: Grant
    Filed: November 6, 2017
    Date of Patent: July 11, 2023
    Assignees: HANGZHOU UNITED TOOLS CO., LTD., HANGZHOU GREAT STAR INDUSTRIAL CO., LTD.
    Inventor: Yueming Li
  • Patent number: 11148305
    Abstract: A novel cutting device useful for cutting asphalt shingles and other roofing products features a blade having a top edge, a bottom edge located on an opposite side of the blade relative to the top edge, and left and right edges; a lower cutting edge adjacent the left or right edge; an upper sharpened edge positioned above the lower cutting edge and adjacent the same edge as the lower cutting edge, wherein the upper sharpened edge and the lower cutting edge are configured for cutting; at least one inner edge emanating from the bottom edge and angled towards the top edge, wherein the inner edge is tangent to the upper sharpened edge; and at least on fin or nodule disposed between the lower cutting edge and the upper sharpened edge, wherein the bottom edge is parallel to and shorter than the top edge.
    Type: Grant
    Filed: February 10, 2020
    Date of Patent: October 19, 2021
    Assignee: Roofers' Advantage Products, LLC
    Inventors: Jonny E. Folkersen, Benjamin J. Folkersen
  • Patent number: 10532472
    Abstract: An accessory tool for an oscillating power tool includes a mounting portion and a blade portion that extends from the mounting portion. The blade portion includes a first lateral edge portion, a second lateral edge portion, and a leading edge portion. A cutting edge is defined in the second lateral edge portion that includes a rearward facing portion that extends generally laterally from a distal end portion of the second lateral edge portion toward the first lateral edge portion and a forward facing cutting edge portion that extends from said second lateral edge portion toward said first lateral edge portion. The rearward facing cutting edge portion is at least partially interposed between the leading edge portion and the mounting portion, and the forward facing cutting edge portion is at least partially interposed between the rearward facing cutting edge portion and the mounting portion.
    Type: Grant
    Filed: January 4, 2012
    Date of Patent: January 14, 2020
    Assignees: Robert Bosch Tool Corporation, Robert Bosch GmbH
    Inventors: Verica Maras, Gavin Jerome, Brian Knoles, Jeremy Rubens
  • Patent number: 10292381
    Abstract: One aspect of the invention provides a vessel treatment system including: a housing defining at least one opening adapted and configured to receive an anatomical vessel; and a humidifier in communication with the housing, the humidifier adapted and configured to introduce humidity into the housing to prevent desiccation of the anatomical vessel. Another aspect of the invention provides a kit including: the vessel treatment system as described herein; and a passivation agent. Another aspect of the invention provides a method for preparing a vein graft. The method includes: applying a tissue passivation agent to a resected anatomical vessel; and placing the resected anatomical vessel in a humidified chamber while the tissue passivation agent cures.
    Type: Grant
    Filed: January 11, 2016
    Date of Patent: May 21, 2019
    Assignee: The General Hospital Corporation
    Inventors: William G. Austen, Jr., Michael C. McCormack, Robert C. Redmond, Irene E. Kocheavar
  • Patent number: 9009981
    Abstract: A three-sided disposable cutting blade for use within a utility knife. The cutting blade features between three and six distinct cutting portions. The cutting blade may be rotated and flipped such that each cutting portion may be presented from the utility knife as the active cutting portion. Features of the cutting blade include a wear-coat indicator which is located at or near each cutting portion and indicates when a portion has been used; grippable locations on the body of the blade to increase the grippibility of the blade when removing and handling the blade; multiple mounting-hole orientations; and mass-reducing punch-outs which reduce cutting friction of the blade against the object being cut.
    Type: Grant
    Filed: March 4, 2014
    Date of Patent: April 21, 2015
    Inventors: Elwood Dean Quimby, Hubert J. Bung
  • Patent number: 8863391
    Abstract: An egg slicer includes a base having a plurality of ribs for supporting a food item to be sliced. The cutting element formed with a frame and one or more blades extending across the frame may be pressed downward such that it slices through the food item and the one or more blades are received within channels formed between the ribs. Openings formed between sidewalls of the base serve as guides to ensure an axial path of travel of the cutting element. Several different arrangements of channels between the ribs allows for the accommodation of several corresponding different arrangements of blades.
    Type: Grant
    Filed: July 26, 2012
    Date of Patent: October 21, 2014
    Assignee: Progressive International Corporation
    Inventors: Justin Bagley, Jennifer K. Cotter, Lance L. Hood
  • Publication number: 20140305269
    Abstract: A blade assembly is provided for use in a wire stripping system, where the blade assembly includes a first blade including a first cutting opening therein, the first opening including a first guide surface on one side of the first opening and a first cutting surface on the opposite side of the first opening, and a second blade including a second cutting opening therein, the second opening including a second guide surface on one side of the second opening and a second cutting surface on the opposite side of the second opening. The blades impart a rotation force on the wire to cause the cutting surfaces to make a depth-controlled circumferential cut in the sheath around the entire wire.
    Type: Application
    Filed: May 9, 2014
    Publication date: October 16, 2014
    Applicant: Mechtrix Corporation
    Inventor: William L. DeGrace
  • Publication number: 20140237827
    Abstract: A utility knife blade includes a portion made of a first material; and an elongated portion made of a second material, the second material being harder than the first material and coated on the first material by melting a powder of the second material on the first material, the elongated portion forming the tip of the blade, wherein the second material includes tungsten carbide particles embedded in a soft binder, and wherein the size of at least 90% of the tungsten carbide particles is lower than about 5 micrometers.
    Type: Application
    Filed: May 6, 2014
    Publication date: August 28, 2014
    Applicant: STANLEY BLACK & DECKER, INC.
    Inventor: Peter Geoffrey Culf
  • Publication number: 20140173832
    Abstract: A multi-purpose kitchen knife which enables the user, by using only one kitchen knife, to cut or trim various kinds of food materials. Thus, it is not necessary to keep several kitchen utensils in the narrow kitchen space, and consequently it enhances the usefulness of the kitchen space.
    Type: Application
    Filed: January 10, 2013
    Publication date: June 26, 2014
    Inventor: John Jungwon Kim
  • Patent number: 8739665
    Abstract: A blade assembly is provided for use in a wire stripping system, where the blade assembly includes a first blade including a first cutting opening therein, the first opening including a first guide surface on one side of the first opening and a first cutting surface on the opposite side of the first opening, and a second blade including a second cutting opening therein, the second opening including a second guide surface on one side of the second opening and a second cutting surface on the opposite side of the second opening. The blades impart a rotation force on the wire to cause the cutting surfaces to make a depth-controlled circumferential cut in the sheath around the entire wire.
    Type: Grant
    Filed: October 20, 2010
    Date of Patent: June 3, 2014
    Assignee: Mechtrix Corporation
    Inventor: William L. DeGrace
  • Patent number: 8713803
    Abstract: A blade assembly of a hedge trimmer includes at least one cutting blade having cutting teeth. At least one portion of the cutting teeth are configured as protective teeth which, referred to the cutting blade axis, have an inner cutting region and from which an outer protective finger extends. The protective tooth is, referred to its tooth axis, configured unsymmetrically. The protective tooth has a cutting side and an opposite-lying holding side and a cutting edge in the cutting region on the cutting side and a holding edge on the holding side. The protective finger has a forward edge on the cutting side and a rearward edge on the holding side. Starting from the blade axis, the forward edge is inclined to the tooth axis and the rearward edge, starting from the blade axis, is inclined away from the tooth axis.
    Type: Grant
    Filed: February 12, 2010
    Date of Patent: May 6, 2014
    Assignee: Andreas Stihl AG & Co. KG
    Inventors: Georg Heinzelmann, Markus Hittmann
  • Patent number: 8667697
    Abstract: The invention relates to an eccentric gear arrangement of a motor-driven, hand-guided hedge trimmer (1). The eccentric gear arrangement includes two shearing blades (2, 3) driven in mutually opposite directions over a displacement path (a). Each shearing blade has a connecting link (4, 5) as well as an eccentric wheel (6) having a drive wheel (7) and two eccentrics (8, 9). The eccentric wheel (6) rotates about a rotational axis (10). The two connecting links (4, 5) lie directly above one another. The two eccentrics (8, 9) are arranged on the same side of the drive wheel (7) and engage each in one of the two connecting links (4, 5). The two shearing blades (2, 3) have contact pressure surfaces (11, 12) in the region of their two connecting links (4, 5) and are offset with respect to each other in such a manner that they are exposed at least over a portion of the displacement path (a). Two downholders (13, 14) are provided which act each on one of the assigned contact pressure surfaces (11, 12).
    Type: Grant
    Filed: January 28, 2011
    Date of Patent: March 11, 2014
    Assignee: Andreas Stihl AG & Co. KG
    Inventors: Markus Hittmann, Ralf Schenk, Reinhard Friedrich, Günter Mayer
  • Publication number: 20140000117
    Abstract: A double-sided saw blade, such as a hack saw blade, comprising a blade body defining a first end and a second end; a first cutting edge located on one side of the blade body defining a first cutting tooth set pattern and a second cutting edge located on an opposite side of the blade body defining a second cutting tooth set pattern; wherein the first set pattern and the second set pattern are (i) timed with respect to one another or (ii) 180 degrees out of phase with respect to one another. A first tooth of the first set pattern may be indexed relative to a designated reference point along the blade body and a first tooth of the second set pattern may be equally indexed relative to the same designated reference point along the blade body.
    Type: Application
    Filed: March 13, 2013
    Publication date: January 2, 2014
    Inventors: Joseph T. Novak, William B. Korb
  • Patent number: 8591536
    Abstract: An ultrasonic surgical instrument including an ultrasonically actuated blade or end effector having a treatment portion. The blade can define a central axis and at least one axis which is transverse to the central axis, wherein the transverse axis can lie within a plane which is perpendicular, or normal, to the longitudinal axis and can define a cross-section of the treatment portion. Such a cross-section can include a central portion and a step extending from the central portion, wherein the central portion can comprise a width, and wherein the step can comprise a cutting edge. In at least one embodiment, the cutting edge can be defined by first and second surfaces which define an angle therebetween. In various embodiments, the position of the cutting edge and/or the angle between the cutting edge surfaces can be selected in order to balance the blade with respect to the transverse axis.
    Type: Grant
    Filed: October 11, 2011
    Date of Patent: November 26, 2013
    Assignee: Ethicon Endo-Surgery, Inc.
    Inventor: Galen C. Robertson
  • Patent number: 8568204
    Abstract: A material removing tool, such as a cutting or grinding tool, adapted to be oscillated by the output shaft of a manually operable motor-driven apparatus, is provided with at least one elongated cutting edge defined by teeth or analogous cutting elements arranged in at least one at least substantially straight linear array.
    Type: Grant
    Filed: June 21, 2011
    Date of Patent: October 29, 2013
    Assignees: maRoc GmbH, C. & E. Fein GmbH
    Inventors: Marco Steiger, David Suter
  • Publication number: 20130167382
    Abstract: An accessory tool for an oscillating power tool includes a mounting portion and a blade portion that extends from the mounting portion. The blade portion includes a first lateral edge portion, a second lateral edge portion, and a leading edge portion. A cutting edge is defined in the second lateral edge portion that includes a rearward facing portion that extends generally laterally from a distal end portion of the second lateral edge portion toward the first lateral edge portion and a forward facing cutting edge portion that extends from said second lateral edge portion toward said first lateral edge portion. The rearward facing cutting edge portion is at least partially interposed between the leading edge portion and the mounting portion, and the forward facing cutting edge portion is at least partially interposed between the rearward facing cutting edge portion and the mounting portion.
    Type: Application
    Filed: January 4, 2012
    Publication date: July 4, 2013
    Applicants: ROBERT BOSCH GMBH, ROBERT BOSCH TOOL CORPORATION
    Inventors: Verica Maras, Gavin Jerome, Brian Knoles, Jeremy Rubens
  • Patent number: 8323301
    Abstract: A medical knife of the invention having a cutting edge formed along the outer periphery of a blade portion includes a shank; and a blade portion formed continuously from the shank, the blade portion includes a tip portion including a tip whose projected plane shape is formed at an extreme end portion; a maximum width portion having a largest width: a side surface portion formed between the tip portion and the maximum width portion; a cutting edge; a first slanting surface formed along the cutting edge; and a second slanting surface formed along the first slanting surface, wherein the first slanting surface constituting the tip portion has a width larger than that of the first slanting surface constituting the side surface.
    Type: Grant
    Filed: June 25, 2004
    Date of Patent: December 4, 2012
    Assignee: Mani Inc.
    Inventors: Masahiko Saito, Kanji Matsutani, Takashi Ina, Takayuki Matsumoto
  • Patent number: 8250767
    Abstract: The tile knife apparatus provides a specialized blade particularly useful in tile work, coupled with an ergonomic handle which provides maximum leverage with a comfortable grip and natural alignment with the blade. The apparatus is especially suited to tile spacer removal and adhesive removal. The blades are provided in varied embodiment widths, including 1 millimeter, 3 millimeters, and 5 millimeters. The blade has a flat edge so that prying and scraping are best facilitated, without excessive injury risk to hands or tile. Each feature of the handle works in coordination with the blade features to facilitate natural hand alignment with work to be performed, while ensuring against hand fatigue. The handle enables easy grip and provides gradually coordinated surfaces and rounded convex ends to avoid user fatigue and hand injuries such as blisters and undue callusing. The ergonomic handle provides for ambidextrous use.
    Type: Grant
    Filed: March 5, 2009
    Date of Patent: August 28, 2012
    Inventors: Paul Ciccarella, Robert Ciccarella, Adrian Pariselli
  • Publication number: 20120079722
    Abstract: A tri pointed shaped utility blade that has a sharp edge around its outer periphery or said perimeter sides. Each of the three perimeter sides is divided into two sections. This makes a total of six sections and this specific shape is arranged into six cutting edge lines. Each of the sections contains a separate cutting edge. This special arrangement provides six individual cutting edges on one blade. The blade can be placed into special utility knives six different ways into a defined location, thereby providing the user with six individual cutting edges.
    Type: Application
    Filed: August 23, 2011
    Publication date: April 5, 2012
    Inventors: Elwood Dean Quimby, Hubert J. Bung
  • Patent number: 8057498
    Abstract: An ultrasonic surgical instrument including an ultrasonically actuated blade or end effector having a treatment portion. The blade can define a central axis and at least one axis which is transverse to the central axis, wherein the transverse axis can lie within a plane which is perpendicular, or normal, to the longitudinal axis and can define a cross-section of the treatment portion. Such a cross-section can include a central portion and a step extending from the central portion, wherein the central portion can comprise a width, and wherein the step can comprise a cutting edge. In at least one embodiment, the cutting edge can be defined by first and second surfaces which define an angle therebetween. In various embodiments, the position of the cutting edge and/or the angle between the cutting edge surfaces can be selected in order to balance the blade with respect to the transverse axis.
    Type: Grant
    Filed: November 30, 2007
    Date of Patent: November 15, 2011
    Assignee: Ethicon Endo-Surgery, Inc.
    Inventor: Galen C. Robertson
  • Patent number: 8056454
    Abstract: A knife has a cutting blade with an elongate planar body having a front and a back, a first and second opposite edges, the elongate body having a centerline extending between the first and the second edges, each of said first and second edges being provided with a plurality of angularly-oriented notches defined by beveled surfaces, which intersect to form cutting edges. The notches have a generally V-shaped configuration and have one or more sides that extend at an acute angle in relation to the centerline.
    Type: Grant
    Filed: April 9, 2008
    Date of Patent: November 15, 2011
    Inventor: Scott Douglas Diaz
  • Publication number: 20110265333
    Abstract: A utility knife suitable for use both as a knife and a sheet cutter includes a casing for securing a blade having cutting edges on opposing sides. The casing includes a gathering finger extending from one side of the casing and spaced from a side of the casing to define a guideway leading to an exposed first edge of the blade for cutting sheet material. The finger is disposed in a spaced manner over the first edge of the blade to prevent inadvertent contact with the blade. A second opposite edge of the blade extends out of the opposite side of the casing to expose a forward portion of the blade for more conventional use as a knife. The blade is manually movable to a retracted portion wherein the blade's second edge is disposed within the casing.
    Type: Application
    Filed: May 3, 2010
    Publication date: November 3, 2011
    Inventor: Glenn Covey
  • Patent number: 7946041
    Abstract: A hand saw including an ergonomically constructed saw blade holder with a pistol type grip, an elongated support having a blade channel for receiving and supporting a particular “T” blade, and various tooth configurations of a saw blade having a cooperating T-shaped blade shanks. Each blade shank includes an aperture at its rear end for receiving a locking pin positioned at the back end of the blade holder that drops into position to secure the blade within the channel of the grip. Additionally, a trigger-like mechanism on the pistol grip, when squeezed, rotates a rubber surfaced pad upward through an opening in the base of the support to contact the underside of the blade shank pushing it upward into the top of the channel to insure blade stability. The “T” design of the blade allows orienting the cutting surface of the blades in different directions so that a user does not have to twist their body or arm to saw.
    Type: Grant
    Filed: August 22, 2008
    Date of Patent: May 24, 2011
    Inventor: Joseph Frankl
  • Patent number: 7870675
    Abstract: A blade shank that can be used for cutting corrugated sheets incorporating improvements to blade design and cutting geometries for an improved cutting action on corrugated sheets; that may include a handle, but does include a blade shank or blade base, at least one cutting edge, at least one guide member attached to the blade base or blade shank; the blade shank can be attached to a handle with the cutting edge facing rearward while the guide member is directed rearward wile the guide member straddles the cutting edge or edges.
    Type: Grant
    Filed: March 24, 2008
    Date of Patent: January 18, 2011
    Inventor: Michael Della Polla
  • Publication number: 20100313428
    Abstract: An apparatus for cutting a radial cut in a surgical plate includes a top jaw element, a bottom jaw element, a removable top insert operable to be coupled to the top jaw element, and a removable bottom insert operable to be coupled to the bottom jaw element, a first top radial cutting element and a second top radial cutting element coupled to the removable top insert, and a first bottom radial cutting element and a second bottom radial cutting element coupled to the removable bottom insert. The radial cutting elements provide a radial cut of the surgical plate. The apparatus also includes a first alignment post and a second alignment post coupled to the removable bottom insert. The alignment posts are operable to align the surgical plate on the removable bottom insert.
    Type: Application
    Filed: June 12, 2009
    Publication date: December 16, 2010
    Applicant: OsteoMed L.P.
    Inventor: Viorel Mocanu
  • Publication number: 20100263219
    Abstract: A tool includes an elongated handle with an end recess and a side notch for latching, and a plurality of different replaceable heads. Each replaceable head includes an elongated rectangular section shaped to fit stably into the recess for providing torsional and lateral support, an operative end, and a latch releasably engaging the side notch to retain the head in the recess. The different heads can include different operative ends with structure for providing different operative functions, such as a head with oppositely-positioned partially-shielded blade tips and/or with different blade throat sizes, a head with pizza-cutting wheel, a head with hammer or wrench feature, and the like.
    Type: Application
    Filed: November 18, 2009
    Publication date: October 21, 2010
    Inventors: Jeffrey A. Kempker, Orville V. Crain, Matthew Jon Jacobs
  • Publication number: 20100218387
    Abstract: A multifunctional hairdresser's tool, with which, in combination with an assortment of replaceable blades, different cutting techniques can be carried out. The tool comprises a holder (1) with a handle (3) in which a blade is held by a coupling system. The blade can be fixed in various positions. The assortment of replaceable blades varies from an adapted design of a known type of blade to different completely new types of blades.
    Type: Application
    Filed: June 6, 2008
    Publication date: September 2, 2010
    Applicant: Gijsbert van Duschoten
    Inventor: Mathias Theodorus Maria Moons
  • Publication number: 20100218384
    Abstract: The cutting tool includes a rigid, elongate, axially and laterally symmetrical bar having a plurality of parallel cutting edges and a handle portion at each end thereof. The tool has a plurality of cutting blades having generally flat faces therebetween. The edges are blunted at each end of the tool to allow the end portions to serve as handles, thus facilitating manipulation of the tool. Each handle portion includes at least one flat face that is coplanar with a face extending from at least one cutting edge. This allows the tool to be stroked along a panel surface to trim a veneer edge therefrom with the plane of the cutting blade remaining flush against the surface of the panel during the cutting operation and not being lifted from the surface due to the thickness of the handle protruding beyond the plane of the cutting blade.
    Type: Application
    Filed: February 27, 2009
    Publication date: September 2, 2010
    Inventors: Fran Marku, Alban Kola
  • Patent number: 7681317
    Abstract: A de-icicling tool has an icicle removing head mounted onto the distal end of an elongated handle. The head is formed of a generally flat blade and a mounting sleeve to that fits onto the distal end of the handle. The blade member has a series of triangular teeth in a concave arc along the front with each tooth having a point and beveled edges which meet at the associated point. The points of the teeth are rounded. The blade has at least one generally triangular notch formed along its rear thereof, each notch having a pair of beveled edges. There is one or more one round aperture in the blade, each with a beveled edge and with a diameter of three to five centimeters. The mounting sleeve includes a threaded socket adapted to accept a male thread of a standard broom handle or paint pole.
    Type: Grant
    Filed: February 7, 2007
    Date of Patent: March 23, 2010
    Inventor: Edward V. Fagan
  • Patent number: 7614937
    Abstract: An ultrasonic blade includes a blade body and a cutting edge. The blade body is defined about a generally axial line. The cutting edge is on the blade body and is defined by the intersection of a first surface and a second surface. The first surface includes a first incident angle of about 0° to 35° from the axial line and a first curve of about 10° to 20° formed at the first incident angle. The second surface includes a second incident angle of about 0° to ?35° from the axial line and a second curve of about 10° to 20° formed at the second incident angle.
    Type: Grant
    Filed: March 26, 2004
    Date of Patent: November 10, 2009
    Assignee: The Boeing Company
    Inventor: Daniel L. Nydegger
  • Publication number: 20090241346
    Abstract: A utility knife is useful for operations such as glazing, roofing, carpeting and sheet rock fabrication wherein the knife is used in close proximity to window edges, walls or corners. A blade-holding portion of the utility knife has a planar bottom wall and structure for mounting the blade at a small angle relative to the bottom wall so that the blade is able to flex and substantially conform to the plane of a surface upon which the planar bottom surface of the utility knife is supported. A handle portion of the utility knife is offset from the planar bottom surface so as to position a user's hand away from the surface on which the utility knife is supported.
    Type: Application
    Filed: May 29, 2009
    Publication date: October 1, 2009
    Inventor: Edward Bilenski
  • Publication number: 20090196989
    Abstract: A sharp-edged blade of the invention includes a circular thin-plate-shaped abrasive grain layer 3 in which abrasive grains 2 are held in a bond phase 1. An oxide film manufactured by a sol-gel method is formed on the surface of at least the bond phase 1 of the abrasive grain layer 3 as a first protective layer 4. A thick oxide film which has polycrystals and is structured such that a grain boundary layer composed of a glass layer does not exist at an interface substantially between the crystals is formed on the surface of the first protective layer 4 as a second protective layer 5.
    Type: Application
    Filed: February 4, 2009
    Publication date: August 6, 2009
    Applicants: Mitsubishi Materials Corporation, Toto Ltd.
    Inventors: Takeshi Katayama, Satoru Katsumata, Takayuki Hanami, Hironori Hatono, Masahiro Tokita, Hiroaki Ashizawa
  • Publication number: 20090031568
    Abstract: A saw blade includes an elongate and helical or flexible blade member having an outer peripheral cutting edge for allowing the blade member to be engaged into and engaged around a work piece without being maintained perpendicular to the work pieces and for allowing the blade member to be operated by the users. The blade member may include two elongate and planar blade elements superposed with each other and each having the cutting edge formed on the outer portion and extended out of an inner portion of the other blade elements for allowing the cutting edges of the blade elements to be exposed for easily working on or cutting the work pieces.
    Type: Application
    Filed: July 31, 2007
    Publication date: February 5, 2009
    Inventor: Chung Cheng Yang
  • Publication number: 20080276467
    Abstract: The cutting apparatus includes a blade with a cutting edge. The blade includes at least two blade elements integrated in a surface of a first face of the blade, and adjacent elements are configured so as to overlap each other for a pre-determined area having a longitudinal axis substantially perpendicular to a line tangential to the cutting edge.
    Type: Application
    Filed: May 10, 2007
    Publication date: November 13, 2008
    Inventor: Jordan Schmidt
  • Publication number: 20080201964
    Abstract: A saw blade having a concavely curved sawing edge and two oppositely-directed sets of teeth. During reciprocation of the blade, a first set of the teeth may cut during a first stroke direction and the second set of teeth may cut during a second stroke direction.
    Type: Application
    Filed: November 5, 2007
    Publication date: August 28, 2008
    Inventors: Carlos Augusto de Camargo, Max Ashton
  • Patent number: 7386941
    Abstract: A triple function slitting, picking, and holding safety blade for use in the graphic arts trade; for slitting through, picking up, and holding portions of computer cut vinyl adhesive material. A slight rotation of a user's blade holding tool changes a blade's function from slitting to picking to hold-down modes with increased user safety with its restricted blade penetration and with fewer carpal tunnel stress motions required in its use. A notch within a cutting edge of and near to the apex point of a generally triangular shaped cutting blade end exposes a new cutting edge. A bend is located between the newly exposed cutting edge and the apex point to further expose the new cutting edge for sufficient clearance to slit a vinyl material's planar surface. An exterior portion of the bend serves as a blunt stylus type hold down tool which prevents any piercing of the vinyl material's surface.
    Type: Grant
    Filed: October 17, 2005
    Date of Patent: June 17, 2008
    Inventors: Terry Lee Wagenknecht, Samuel James Wagenknecht, Charles Maxwell Wagenknecht
  • Publication number: 20080134521
    Abstract: A trimming machine according to the present invention has a pair of blades each of which has a plurality of cutting edges along a longitudinal direction of the blades and which are reciprocated along the longitudinal direction relative to each other by a rotary power unit. The trimming machine further has a substantially cylindrical eccentric cam eccentrically rotated by the rotary power unit, and a connecting rod having an annular larger end part slidably fitted around the eccentric cam, a smaller end part pivotally attached to one of the blades, and a connecting rod axis passing through a central axis of the smaller end part and a central axis of the larger end part. The larger end part has a bearing portion for bearing load from the blade, and the bearing portion is located on the connecting rod axis when the connecting rod axis is aligned with the longitudinal direction, and is deformable along the connecting rod axis when the bearing portion is subjected to a load.
    Type: Application
    Filed: December 3, 2007
    Publication date: June 12, 2008
    Applicant: KIORITZ CORPORATION
    Inventors: Kazuya HANADA, Naoyuki KIRIHARA, Kazuteru FUKUDA
  • Publication number: 20080115858
    Abstract: A knife assembly and chipping knife therefor. The knife is rotated about an axis and has a front side facing the direction of rotation. The knife has a single deflector ridge extending from the front side of the knife and two indexing features on either side of the deflector ridge, each corresponding to spaced apart, parallel cutting edges of the knife defining a plane.
    Type: Application
    Filed: November 22, 2006
    Publication date: May 22, 2008
    Inventor: Bradley R. Stager
  • Patent number: 7356898
    Abstract: A method for producing a surgical knife of a very small size for use in ophthalmic surgery under a microscopic environment having a sharp edge without causing reflection of lights. The surgical knife comprises a handle, and a blade attached to the handle. The blade has a sharp polished cutting edge, a rough machined surface provided inside of the cutting edge having a relatively rough surface area, and an inner flat area. An anti-reflection treatment is provided on an upper and lower surfaces of the blade except for the cutting edge, thereby prohibiting reflection or emission of lights from the knife.
    Type: Grant
    Filed: May 16, 2003
    Date of Patent: April 15, 2008
    Assignee: MANI, Inc.
    Inventors: Kanji Matsutani, Takashi Ina, Masahiko Saitoh, Mitsuru Saitoh
  • Patent number: 7255705
    Abstract: A device for dissecting an object, such as a cell colony includes a handle and an incision knife module that can dissociate the colony into several colony pieces. In accordance with features of the invention, users can use this dissecting device to cut an object into several pieces quickly and smoothly at a time.
    Type: Grant
    Filed: December 24, 2003
    Date of Patent: August 14, 2007
    Assignee: Industrial Technology Research Institute
    Inventors: Lih Tao Hsu, Wannhsin Chen, Kuang Ning Chang, Mei Ju Yang, Jinn Fa Wu, Yeou Bin Guu
  • Patent number: 7127820
    Abstract: The invention described herein relates to a flush cut saw that is capable of safely making a flush cut. The saw has a handle with a thin, flexible blade extending therefrom. The blade has two elongated extensions running away from the handle. The extensions can each have external and internal edges, and are mounted in a spaced, opposed relation. The internal edges can be provided with teeth preferably oriented to allow for a pull cut. The external edges are dull, and may be curved to prevent injury.
    Type: Grant
    Filed: November 19, 2004
    Date of Patent: October 31, 2006
    Assignee: Miller Dowel Company
    Inventor: Michael Miller
  • Patent number: 7117778
    Abstract: A corrugated knife fixture is provided for cutting vegetable products or the like particularly such as potatoes, wherein the knife fixture includes one or more knife blades each having a cutting edge with a variable pitch and variable amplitude geometry. The knife fixture is particularly adapted for cutting whole potatoes into a plurality of wedge-shaped pieces each including a pair of wave-shaped cut surfaces which angularly intersect at a narrow cut tip located generally at a longitudinal centerline of the potato and diverge radially outwardly to an enlarged heel corresponding with the external surface of the potato which may remain unpeeled. The knife fixture, and the resultant wave-shaped cut surfaces of the potato wedges, is defined by the variable pitch and variable amplitude cutting edge wherein the pitch and amplitude increases from the cut tip of the wedge toward the heel or external surface thereof.
    Type: Grant
    Filed: June 9, 2003
    Date of Patent: October 10, 2006
    Assignee: J. R. Simplot Company
    Inventors: Michael O. Fein, Allen J. Neel
  • Patent number: 7013569
    Abstract: A cutting tool includes an elongate handle to be grasped by a user, and an elongate blade connected to the elongate handle. The elongate blade includes a substantially linear proximal portion extending longitudinally outwardly from an end of the handle, and a curved distal portion extending in a downward and forward curve from the proximal portion and ending in a tapered tip. The linear proximal portion and curved distal portion may have about equal lengths. The linear proximal portion may have a sharpened lower edge and the curved distal portion may have sharpened upper and lower edges. In some embodiments, the elongate blade may have a length of less than about twelve inches so that the cutting tool is a knife, and in other embodiments, the elongate blade may have a length of greater than about twelve inches so that the cutting tool is a sword.
    Type: Grant
    Filed: November 15, 2002
    Date of Patent: March 21, 2006
    Inventor: Christopher A. Holler
  • Patent number: 6925920
    Abstract: The invention relates to a knife holder for a microtome having a knife receiver for fixing and positioning a knife and a knife for the knife holder. The knife holder is ergonomic, the operation is made easier and safer, and the knife does not need to be changed as often. To this end, the knife receiver is constructed to accommodate a disk-shaped knife. The knife is given the shape of a regular polygon, whereby the edges are cutters. The knife receiver has an axle on which the knife can rotate such that the cutters can be positioned for cutting an object.
    Type: Grant
    Filed: April 13, 2000
    Date of Patent: August 9, 2005
    Assignee: Microm International GmbH
    Inventor: Drago Borosic
  • Patent number: 6895674
    Abstract: A utility blade especially adapted for a roofing knife. The blade is fabricated from a flat, thin blank of metallic material and has a square central mounting hole for mounting in a conventional roofing knife. A first end of the blade is configured with a curvilinear, sharpened hook on one side and a V-shaped sharpened cutting component on the other side. The V-shaped sharpened cutting component terminates into a sharpened point. This arrangement is effective to give a user the advantage of having two different type cutting surfaces in one blade.
    Type: Grant
    Filed: August 15, 2003
    Date of Patent: May 24, 2005
    Inventor: Jeffrey S. Ai
  • Patent number: 6848185
    Abstract: A utility knife including: a body defining an interior cavity, and a blade carriage slidably disposed within the cavity. The blade carriage is configured for removably receiving at least one blade, and is at least partially slidably removable from the cavity, thereby allowing facile replacement of the blade. In one embodiment, the carriage may receive first and second blades, each of which is extensible from an associated end of the body. A utility knife blade including dual cutting edges and cutting points is also provided.
    Type: Grant
    Filed: January 17, 2003
    Date of Patent: February 1, 2005
    Inventor: Glenn J. Tebo
  • Patent number: 6842986
    Abstract: A cutting tool includes an elongate handle to be grasped by a user, and an elongate blade connected to the elongate handle. The elongate blade includes a downwardly sloping proximal portion extending outwardly from an end of the handle, and a linear distal portion extending substantially parallel to and downwardly offset from an axis defined by the elongate handle and ending in a tapered tip. The downwardly sloping proximal portion may have a sharpened lower edge, and the linear offset distal portion may have a sharpened lower edge. In some embodiments, the elongate blade may have a length of less than about twelve inches so that the cutting tool is a knife, and in other embodiments, the elongate blade may have a length of greater than about twelve inches so that the cutting tool is a sword.
    Type: Grant
    Filed: November 15, 2002
    Date of Patent: January 18, 2005
    Inventor: Christopher A. Holler
  • Publication number: 20040093741
    Abstract: A cutting tool includes an elongate handle to be grasped by a user, and an elongate blade connected to the elongate handle. The elongate blade includes a downwardly sloping proximal portion extending outwardly from an end of the handle, and a linear distal portion extending substantially parallel to and downwardly offset from an axis defined by the elongate handle and ending in a tapered tip. The downwardly sloping proximal portion may have a sharpened lower edge, and the linear offset distal portion may have a sharpened lower edge. In some embodiments, the elongate blade may have a length of less than about twelve inches so that the cutting tool is a knife, and in other embodiments, the elongate blade may have a length of greater than about twelve inches so that the cutting tool is a sword.
    Type: Application
    Filed: November 15, 2002
    Publication date: May 20, 2004
    Inventor: Christopher A. Holler
  • Patent number: 6711824
    Abstract: The twine cutter for a bale processor comprises a blade holder has a front end and a back end, the holder further has a top edge that is bevelled to a wedge shape at the front end, a back edge and a base edge. A drive mechanism such as an elongated handle is fixed to the holder for driving the holder back or forth. A cutter blade is fixed to the holder such that a cutting edge is bevelled towards the front of the holder and a further cutting edge is bevelled towards the back of the holder thereby being able to cut twine when the holder is driven forward or backward. The cutter blade may further include a sharpened hook shaped section used to snag and cut twine. The hook shaped section can be positioned at the apex of the triangular upper portion of the single blade. A disintegrator roller for a bale processor comprises an elongated roller arranged to rotate in one direction about its axis with a number of flails intermittently spaced along the length and around the circumference of the roller.
    Type: Grant
    Filed: December 6, 2001
    Date of Patent: March 30, 2004
    Assignee: Bridgeview Mfg. Inc.
    Inventor: Kevin Hruska
  • Patent number: 6658743
    Abstract: A combination game knife having a handle and a blade portion having a tip, a top back edge and a bottom front edge and a rear portion opposite the tip, the blade portion having up to five cutting surfaces. A unique feature is a small gut hook positioned below the forefinger aperture in the rear of the blade portion and above the handle and opening toward the user. Other cutting surfaces are the back cutting edge, a top back large gut hook, a front bottom cutting edge, a front serrated edge to the rear of the front cutting edge, and a bottom edge small gut hook to the rear of the serrated edge and in the vicinity of the handle. A forefinger aperture is spaced toward the back edge from the small gut hook near the handle.
    Type: Grant
    Filed: May 10, 2002
    Date of Patent: December 9, 2003
    Inventors: Calvin D. Dudley, Jr., Franklin A. Swann