Butchers' Steels Patents (Class 76/84)
  • Patent number: 11045032
    Abstract: A carving tool has a hollow tube having a first end and a second end and a surface, a conical tip on the second end, a handle connected to the first end, and a plurality of carving elements in the surface between the first end and the second end. In some embodiments, the carving elements are cutouts through the surface of the hollow tube, with sharpened edges on the perimeter of the cutouts. In other embodiments, the carving elements are grating or filling elements in the surface of the hollow tube.
    Type: Grant
    Filed: May 1, 2020
    Date of Patent: June 29, 2021
    Inventor: Justin Alexander Counts
  • Patent number: 8267750
    Abstract: A knife edge enhancing apparatus includes a support having a support surface and knife blade clamping structure mounted to the support and located above the support surface. An object having a knife edge modifying surface which could be abrasive or non-abrasive is mounted to a holder which is freely slidable on the support surface so that the object surface can be manually moved into contact with a knife edge facet. At least one of the clamping structure and the object surface is angularly adjustable to control the angle of contact of the object surface with the knife edge facet.
    Type: Grant
    Filed: August 31, 2010
    Date of Patent: September 18, 2012
    Assignee: Edgecraft Corporation
    Inventors: Daniel D. Friel, Sr., Robert P. Bigliano, Angela Bigliano, legal representative, Samuel Weiner
  • Patent number: 7887397
    Abstract: A knife sharpening bar includes a handle that carries a support bar. A flexible tube is tightly fit over the support bar. A hollow ceramic bar is then fit over the flexible tube with an inside surface of the ceramic bar tightly engaging the flexible tube so that the flexible tube provides a cushioning support between the support bar and the ceramic bar, which protects the ceramic bar from directly bearing any external impact applied to the knife sharpening bar. An internally-threaded cap engages an externally-threaded free end of the support bar and abuts against the ceramic bar to thereby secure the ceramic bar in position on the support bar. Collars or other buffering members can be positioned at opposite ends of the ceramic bar.
    Type: Grant
    Filed: January 17, 2008
    Date of Patent: February 15, 2011
    Inventor: Cheng-Hsien Shen
  • Publication number: 20100018352
    Abstract: In a sharpening rod with a peripheral surface which constitutes a sharpening surface, wherein the sharpening rod (1) is formed of a material with specified grain size, the peripheral surface includes at least two pairs (2, 3) of sharpening surfaces (2a, 2b, 3a, 3b) of different materials, which sharpening surfaces of each pair are located opposite each other transverse to the longitudinal direction of the rod, wherein the pairs (2, 3) of sharpening surfaces are arranged offset with respect to each other in peripheral direction of the sharpening rod (1) and a first one (2) of the pairs (2, 3) of sharpening surfaces is formed of a first material with a first grain size and the at least second pair (3) of sharpening surfaces is formed of a second material with a second grain size. Furthermore, there is proposed a method for manufacturing such sharpening rod (1).
    Type: Application
    Filed: July 21, 2009
    Publication date: January 28, 2010
    Applicant: High Tech Ceramic eK
    Inventor: Udo Rieser
  • Publication number: 20090325473
    Abstract: An abrasive sharpener having a body and an integral handle. The body possesses a pair of upper slots for receiving an edge to be sharpened. One of slot has a pair of crossed diamond abrasive rods having a square cross section generally along its length. The other slot includes a pair of abutting ceramic blades having triangular configuration. Two offset slot portions having a ceramic rod is also provided on the body.
    Type: Application
    Filed: March 16, 2009
    Publication date: December 31, 2009
    Inventors: Richard Smith, Louis Challant
  • Publication number: 20090183601
    Abstract: A knife sharpening bar includes a handle that carries a support bar. A flexible tube is tightly fit over the support bar. A hollow ceramic bar is then fit over the flexible tube with an inside surface of the ceramic bar tightly engaging the flexible tube so that the flexible tube provides a cushioning support between the support bar and the ceramic bar, which protects the ceramic bar from directly bearing any external impact applied to the knife sharpening bar. An internally-threaded cap engages an externally-threaded free end of the support bar and abuts against the ceramic bar to thereby secure the ceramic bar in position on the support bar. Collars or other buffering members can be positioned at opposite ends of the ceramic bar.
    Type: Application
    Filed: January 17, 2008
    Publication date: July 23, 2009
    Inventor: CHENG-HSIEN SHEN
  • Publication number: 20070289410
    Abstract: A knife sharpening device is disclosed. The device an elongated body with cornered edge on the surface thereof characterized in that at least one corner of the device is a cornered slot extended axially and the connection between the top end of the two walls of the cornered slot with the circumferential surface forms into a first sharpening edge and a second sharpening edge, and the first and the second sharpening edge are in contact with the edge of a knife.
    Type: Application
    Filed: June 20, 2006
    Publication date: December 20, 2007
    Inventor: Tsang-Hai Lin
  • Patent number: 7287445
    Abstract: An apparatus for manually steeling or conditioning the edge of a knife blade comprises a precision angle guide attached to a manual sharpening steel. The angle guide establishes a guiding surface that provides for sustained sliding or rolling contact with the face of the knife blade such that the plane of at least one edge facet adjacent to the edge of the blade is maintained at a precisely established angle relative to the plane of the sharpening steel surface at the contact point of the facet with the surface of the sharpening steel.
    Type: Grant
    Filed: May 6, 2005
    Date of Patent: October 30, 2007
    Assignee: Edgecraft Corporation
    Inventors: Daniel D. Friel, Sr., Daniel D. Friel, Jr., Robert P. Bigliano, Abraham Leibson
  • Patent number: 7229345
    Abstract: The invention concerns a knife sharpener for household knives or the like. In order to design a knife sharpener, which, one the one hand, can be used for sharpening and sits solidly on a surface without it having to be held, and which, on the other hand, is producible with little economic cost regarding production and assembly, the invention proposes a knife sharpener with a housing, which has a surface designed to be a base, and at least one longitudinal, cylindrical grinding element made from ceramics, at least part of the surface of which is arranged on the surface of the housing, whereas the base is designed at a right angle to a longitudinal line of the grinding element and the grinding element is positioned in the middle in relation to a projection of the base.
    Type: Grant
    Filed: February 22, 2005
    Date of Patent: June 12, 2007
    Assignee: Flugel CSS GmbH & Co., KG
    Inventors: Udo Fierus, Gerd Fierus
  • Patent number: 7153201
    Abstract: An oval rod sharpener having an interrupted diamond abrasive surface having plurality of holes forming wells for collecting filings during sharpening. The abrasive surface is formed by multiple layers of micron sized diamonds, such as monocrystalline diamonds. A plastic pad is provided on the tip end of the oval abrasive rod to protect a support surface on which the sharpener rests during a sharpening operation.
    Type: Grant
    Filed: July 12, 2004
    Date of Patent: December 26, 2006
    Assignee: Smith Abrasives, Inc.
    Inventor: Richard S Smith
  • Patent number: 7018281
    Abstract: The sharpening apparatus of the present invention preferably comprises a hand sharpener that may be assembled or mounted on the knife (e.g., sold mounted on the knife by the knife manufacturer or purchased separately and mounted on the knife by the end-user), and which may remain on the knife after sharpening.
    Type: Grant
    Filed: February 27, 2003
    Date of Patent: March 28, 2006
    Assignee: Gotit Ltd.
    Inventor: Shimon Yahav
  • Patent number: 6726551
    Abstract: A manual knife sharpener is provided with angle control structure. The structure includes a guide member having a guide surface which forms an angle with the abrasive surface of the sharpening member. When the blade is inserted into the space between the abrasive surface and the guide surface the blade presses against the guide surface to displace the guide surface linearly in a direction perpendicular to the guide surface so that the movement is a lateral movement in the same plane without any pivoting or twisting of the guide member. Thus, the angle between the guide surface and the abrasive surface remains constant regardless of the extent of displacement of the guide member.
    Type: Grant
    Filed: December 18, 2001
    Date of Patent: April 27, 2004
    Assignee: Edgecraft Corporation
    Inventor: Daniel D. Friel, Sr.
  • Patent number: 5499556
    Abstract: An ice skate blade sharpener having an elongate body with a first elongated slot along one side edge and a honing stone affixed to a bottom thereof, presenting a convex, elongated, outwardly facing surface. The side walls extending from the one side edge to another side edge of the body opposite the one side edge. The another side edge having a pair of elongated honing stones affixed to respective side walls with planar parallel surfaces spaced apart and defining a second elongated slot slightly wider than the thickness of a skate blade, such that upon squeezing said side walls together the second elongated slot is narrowed so as to cause deburring of a sharpened skate blade inserted into the second slot and moved along the length thereof.
    Type: Grant
    Filed: April 7, 1995
    Date of Patent: March 19, 1996
    Assignees: Walter R. Exner, Vincent A. Exner, Urbin L. Foucher
    Inventors: Walter R. Exner, Vincent A. Exner, Urbin L. Foucher
  • Patent number: 5431070
    Abstract: This invention is a blade guide to allow the angle that the blade addresses a sharpening rod to be repeatedly and accurately re-established. This is accomplished through the provision of a guide plate outwardly projecting from the sharpening rod with a guide arm thereon. When the blade is placed with the back of the blade at the juncture between the guide plate and the guide arm, and the cutting edge of the blade against the sharpening rod the angle the blade addresses the sharpener can repeatedly be re-established before each sharpening stroke of such blade against the sharpener. Once this correct angle is established, it can be maintained even through the blade is no longer engaged with the guide. By making the guide arms adjustable longitudinally along the guide plate, the optimum angle can be set for an infinite number of different sizes of blades. Also indicia is provided on the guide plate so that the proper location of the guide arm can be readily determined by reference to such indicia.
    Type: Grant
    Filed: June 6, 1994
    Date of Patent: July 11, 1995
    Inventor: Charles L. Thames
  • Patent number: 5105586
    Abstract: An abrading tool and method of manufacture wherein a non-uniform abrading surface is formed on the tool by multiple passes of dies having similar non-uniform surfaces.
    Type: Grant
    Filed: July 21, 1989
    Date of Patent: April 21, 1992
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventors: Walter F. Jenne, John R. Mason
  • Patent number: 4799335
    Abstract: A knife sharpening device employs one or more guide members which are angularly positionable in relation to a central sharpening surface so that a knife blade may be maintained at a pre-selected angle relative to the sharpening surface during the sharpening process. A pair of sharpening stones are mounted in back-to-back relationship. A guide bar is angularly positionable to define pre-established spacings with respect to opposing sharpening surfaces of the stones to thereby define fixed sharpening angles. A pin/detents locking mechanism is employed for adjustably fixing the angular position of the guide bar. In one embodiment a plurality of guide rods are fixed in eccentric angular relationship with a central columnar sharpening surface to maintain the sharpening angle of a knife blade at a pre-selected angle.
    Type: Grant
    Filed: May 20, 1987
    Date of Patent: January 24, 1989
    Inventor: Silvio R. Battocchi
  • Patent number: 4285253
    Abstract: A fine smooth finish can be obtained on blades without grinding by drawing them against a rotating hardened disk with a smooth peripheral edge. One or a pair of hardened disks having smooth, rounded peripheral edges being disposed adjacent to and partially received by knife-guiding structure, having rotation imparting drive. The use of smooth edged hardened disks enables a very fine finished edge to be obtained, similar to the edge resulting from the use of a hand held steel, and often better.
    Type: Grant
    Filed: January 24, 1980
    Date of Patent: August 25, 1981
    Inventor: Theodore L. Edling
  • Patent number: 4090418
    Abstract: A device for reforming and grinding the blade of a knife to be sharpened comprising a supporting rod, a grinding plate having a plurality of concentric triangular projections at the both sides thereof, and guide disks arranged at the both sides of said grinding plate. A clearance into which the blade of a knife is inserted is provided between said grinding plate and guide disk.
    Type: Grant
    Filed: December 2, 1976
    Date of Patent: May 23, 1978
    Inventor: Shigeyoshi Ishida
  • Patent number: 3942394
    Abstract: Finishing sharpener including a handle having a pair of wings extending therefrom and each wing being in the form of a flat bar defining a sharpening edge that is arcuate in cross section and smooth. The method of using the sharpener is concerned with the proper positioning of a knife blade relative the wings and a proper engagement between the knife edge and the sharpening edges of the wings.
    Type: Grant
    Filed: January 20, 1975
    Date of Patent: March 9, 1976
    Inventor: John R. Juranitch
  • Patent number: RE43884
    Abstract: An apparatus for manually steeling or conditioning the edge of a knife blade comprises a precision angle guide attached to a manual sharpening steel. The angle guide establishes a guiding surface that provides for sustained sliding or rolling contact with the face of the knife blade such that the plane of at least one edge facet adjacent to the edge of the blade is maintained at a precisely established angle relative to the plane of the sharpening steel surface at the contact point of the facet with the surface of the sharpening steel.
    Type: Grant
    Filed: July 1, 2011
    Date of Patent: January 1, 2013
    Assignee: Edgecraft Corporation
    Inventors: Daniel D. Friel, Sr., Daniel D. Friel, Jr., Robert P. Bigliano, Abraham Leibson