Class 451/192 - Blade sharpener

Subclass of Class 451 - Abrading
Definition: Abrading machine especially adapted to sharpen the edge
No. of patents: 22
Last issue date: 10/25/2011

Number	Title	Issue Date
8043142	Sharpener carried by the product table of a food slicer A food slicer has a support member including a base portion and an upstanding portion integrally formed with the base portion. The upstanding portion includes a rotating cutting blade for slicing food product. The base portion includes a food product table slidably ...	10/25/2011
7722442	Knife-edge sharpening apparatus Two counter-rotating, intermeshing, toothed wheels grind opposite sides of an interposed blade to create or burrlessly sharpen a knife-edge on the blade. The wheels can be solid or comprised of a fixed stack of toothed disks, concentrically aligned, the teeth of eac...	05/25/2010
7264540	Arrow blade sharpening apparatus The arrow blade sharpening apparatus is best suited for precision sharpening of arrow blades, Exacto® knife blades, and other like edges which require precision and fine honing. The transparent lidded apparatus is motorized and counter rotates drive gears and then ...	09/04/2007
7220169	Sharpening apparatus A sharpening apparatus (16) for a blade-like cutting implement. The sharpening apparatus has an elongate body (18) and a cutting edge extending widthwise across one end of the body (11) at a predetermined angle relative to the longitudinal axis ...	05/22/2007
7121932	Portable drill sharpener A portable drill sharpener includes a casing, a sand-wheel, a positioning device, a first grinding unit and a second grinding unit, a holding member for positioning a drill to be ground, a first adjustment unit and a second adjustment unit respectively connected to ...	10/17/2006
6932683	Knife sharper having cutting edge protective structure A knife sharpener includes a housing having one or more access slots for receiving knife blades to be sharpened, one or more grinding wheels rotatably received in the housing and disposed close to the access slots of the housing for grinding and sharpening the cutti...	08/23/2005
6786808	Sharpening device for rotating cutting tools and machine employing said device A device for sharpening a rotating discoidal cutting tool (13) is described, comprising at least one sharpening grinder (21; 23). The device provides a dressing tool (61; 71) which interacts with said at least one grinder to dress the working su...	09/07/2004
6709320	Width adjustable sharpener A knife sharpener includes a handle and an operation portion in which two grinding members are respectively and pivotably received. An aperture is defined through a top of the operation portion and communicates with the grinding members. Each of the two grinding mem...	03/23/2004
6623340	Grinding jig A grinding jig (5) is to be attached on an edge tool (4) to be ground on a rotating grindstone (2) in a grinding machine (1), having a support means (3) in the vicinity of the grindstone. The jig is split by having a base portion (6) and two parallel open...	09/23/2003
6544105	Control device to implement a grinding process for a knife shaft The present invention relates to a control device to grind a knife shaft used in a machine intended for cutting sheets of materials into strips, for example sheets of paper, plastic, plates of photosensitive film or any other material having the form of t...	04/08/2003
6261161	Sharpener assembly for a food slicer and related method A sharpener assembly for a food slicer includes a rotatable frame with a sharpening member and a truing member operatively connected for rotation with the frame. The frame is mounted on a food slicer to place the sharpening member and truing member on opp...	07/17/2001
6257967	Sharpener for veneer knife A sharpening tool for a veneer knife has a primary stone and a secondary stone driven by a power head. The secondary stone is inclined at an angle to the primary stone corresponding to the angle of the defined faces of the veneer knife cutting edge. Outri...	07/10/2001
6071181	Knife sharpening machine A knife sharpening machine has sharpening and honing assemblies each having fixed and movable subassemblies with circular stones mounted on shafts, the stones being spaced from one another. An adjusting mechanism moves the movable subassemblies toward and...	06/06/2000
5700182	Apparatus and method for automated honing of elongated straight-edged cutting blades An apparatus and method for automated honing of elongated straight-edged cutting blades such as those used in the printing and binding industry for the trimming of books or pamphlets and the like, wherein a sharpened blade which has been ground on other e...	12/23/1997
5645470	Method of honing a knife blade A honing process for a long knife blade such as that used in chipping wood products comprises two honing bodies each formed by a shaft carrying three honing discs with the shafts spaced by a distance less than the radius of the discs so the discs interlea...	07/08/1997
5435771	Method and apparatus for sharpening scalloped-edge blades A sharpening apparatus for sharpening scalloped-edged blades in a carton slitting machine includes at least two rotating cylindrical hones mounted on a pneumatically controlled actuator. A sharpening operation is initiated by a machine operator as needed ...	07/25/1995
5027559	Sharpening unit for leather splitting machines The sharpening unit comprises two diamond grinding wheels 6,7 mounted on respective shafts 8, 9 rotatably supported by a carriage 14 movable away from and towards the cutting blade 4 of a leather splitting machine to bring the grinding wheels in contact w...	07/02/1991
5018310	Knife sharpener A grinding device (2) is inserted in the synthetic resin housing (1) of the knife sharpener, this grinding device consisting of a supporting unit (3) with two resiliently designed supporting arms (6, 7) for two grinding wheels (8, 9). In the installed con...	05/28/1991
4928436	Device for sharpening knives The object of the invention relates to a device for sharpening knives, comprising a freely rotatably mounted grinding element (6) consisting of two truncated cones turned against each other. In known devices of this kind, one side of the knife blade (17) ...	05/29/1990
4809464	Method and apparatus for sharpening metal blades Apparatus is provided for forming sharp edges on a flat metal blade strip. The apparatus is comprised of two series of synchronously rotated enmeshed abrasive wheels which successively contact the blade strip in opposite directions to remove the burr that...	03/07/1989
4454866	Bathroom appliance for concurrently sharpening razor blades and treating gum tissue by spaced pressure pulses of liquid A bathroom appliance for concurrently sharpening single or double edged razor blades and treating gum tissue by applying spaced pressure pulses of liquid to depress discrete areas of gum tissue with the spacing of said pulses one from the other of a durat...	06/19/1984
4038782	Honing mechanism A honing mechanism for honing blades which includes a pair of honing wheels mounted on carriages for movement in a direction toward and away from each other between an operating or honing position and a dressing position. Each honing wheel is driven by a ...	08/02/1977

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Class 451/192 - Blade sharpener