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Class 451/193 - Blade sharpener


Subclass of Class 451 - Abrading
Definition: Abrading machine especially adapted to sharpen the edge
No. of patents: 28
Last issue date: 03/01/2011


NumberTitleIssue Date
7896729Universal rotary blade holder for sharpener
A blade-sharpening machine for sharpening any one of various sizes of rotary blades comprises a drive unit and a universal blade chuck for holding the blade to be sharpened. The drive unit further includes a sharpening assembly that sharpens the blade while the driv...
03/01/2011
7666067Method and device for sharpening a cutting tool
A device for grinding a cutting tool uses a rotatable grindstone and a tool holder for mounting the cutting tool. The device guides the tool, mounted in the tool holder, along an intended plane, which is tangential to a peripheral surface of the rotatable grindstone...
02/23/2010
7281969Tool sharpening and compound honing jig
A holder, guide, or jig for sharpening tools is disclosed, in which the jig holds and orients a tool to be sharpened to properly align the tool on or against abrasive wheels, discs, or sharpening stones, thereby creating a fine, square, beveled edge on the tool, at ...
10/16/2007
7264540Arrow 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
7220169Sharpening 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
7125325Portable sharpening system for a dual-knife cutting machine
A grinding apparatus (36) for a paper cutting mechanism (10) is shown and includes a coupler (38), for mounting on an upper rail (14) of the cutting mechanism (10), a motor-driven grinder (40), and an adjustable support (...
10/24/2006
7090569Manual clutch device for a roller sander for controlling reciprocating movement of a roller
A clutch device for a roller sand for controlling reciprocating movement of a roller includes a belt wheel, a connecting shaft and a adjusting button. The roller sander consists of a base, a motor set, a roller set and a linking device. The belt wheel is pivotally c...
08/15/2006
6942551Method for forming a cutting edge along an edge portion of a blade stock
A method for forming a cutting edge along an edge portion of a blade stock, wherein the method includes moving the blade stock with respect to a first cutting element rotating about a first rotational axis, the first rotational axis forming one of an acute angle and...
09/13/2005
6932683Knife 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
6881137Manual knife sharpener with angle control
A sharpener for blades comprises a physical structure supporting at least one abrasive surface. A displaceable guiding plate having an integral linear structural feature of the support is disposed toward one side of the abrasive surface. The linear structural featur...
04/19/2005
6814652Method to sharpen the cutting knife of a knife ring chipper
A method for sharpening the cutting knives of a knife ring chipper, which includes a knife ring and a number of knife units, the units in turn containing knives and holding plates. The knife ring is removed from the knife ring chipper, the knife units of the knife r...
11/09/2004
6802763Apparatus for sharpening blades
A sharpening apparatus with substantially rigid sharpening wheels disposed substantially fixedly on a rotatable drive shaft. An edge of a blade inserted in a slot in the apparatus comes into contact with a sharpening surface on a sharpening wheel. A sliding block as...
10/12/2004
6709320Width 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
6544105Control 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
6368196Blade sharpener for curved and straight edge blades
A blade sharpener comprises a work surface consisting of a single support line. A grinding wheel defines a plane that contains the support line. The grinding wheel is swingable in the grinding wheel plane to a selected position relative to the support lin...
04/09/2002
6364750Blade sharpener for curved and straight edge blades
A blade sharpener comprises a work surface consisting of a single support line. A grinding wheel defines a plane that contains the support line. The grinding wheel is swingable in the grinding wheel plane to a selected position relative to the support lin...
04/02/2002
5942037Rotatable and translatable spray nozzle
A nozzle having a series of orifices along a longitudinal length of the nozzle for processing a substrate and which is rotatably adjustable. By the nozzle design of the present invention, liquid is properly distributed along the longitudinal length of the...
08/24/1999
5868602Method and device for resharpening knives used in size-reduction machines, especially in wood flaking machines
The invention is based on the method for the resharpening of knives used in size-reduction machines described in U.S. Pat. No. 5,525,094 in which the knives remain installed in a rotatable knife carrier. With this invention the process has been further de...
02/09/1999
5591069Portable blade sharpener for ice skates
An improved ice skate blade sharpening system utilizing a powered rotating grinding wheel. The system has an adjustable guide for preventing canting and twisting of the blade as it is sharpened, and applies a constant cutting pressure to the edge irrespec...
01/07/1997
5547416Skate sharpening gauge
A device for accurately locating the blade of a skate mounted in a skate holder so that it may be ground correctly. The device includes a base block mounted to a base of a skate sharpener, a lever pivotally mounted to the block, the block having a blade c...
08/20/1996
5274958Sharpening system especially suitable for spiral meat slicing blade
The present invention provides a blade sharpening system in which a cylindrical drum abrasive is fitted snugly about a rotatable drum. The blade is run across a guide plate which is maintained at a proper orientation with respect to the drum as the edge o...
01/04/1994
5209025Process for sharpening the knives of a rotating drum and adjusting the fixed counter-knife cooperating therewith and device for carrying out this process
In a fodder harvesting machine, the device disclosed comprises a rotating chopping drum (1) and a fixed counter-knife (25) cooperating with the knives (2) of the drum (1), as well as a retractable wheel (21) adapted to be moved in rotation in order period...
05/11/1993
5133157Apparatus for sharpening cutting edges of knife blades
Apparatus for separately sharpening the two sides of cutting edges of knife blades in slaughterhouses, butcher shops and similar establishments has a housing for a ring-shaped flexible sharpening tool and a drum-shaped carrier for the tool. The carrier is...
07/28/1992
5127194Apparatus for sharpening the blade of a skate
The present invention is directed to an apparatus for sharpening the blade of a skate which provides more precision that prior art sharpeners. The apparatus comprises a circular grindstone which can pivot from a work position to a rest or sharpening posit...
07/07/1992
4961287Wood jointer and planer blade sharpening holder
A device for low-cost and convenient sharpening of wood jointer and planer blades or knives. The device comprises a rectangular block of sufficient thickness to embody an angled kerf for holding the blade or knife and thumbscrews to turn up against the bl...
10/09/1990
4635402Knife abrasive apparatus for rotary drum shaped cutter
A knife abrasive apparatus for a rotary drum shaped cutter can grind the knife edge without causing it to be serrated. It has a rotary drum shaped cutter including a rotary drum and knives spacedly disposed on the outer periphery of the drum at a predeter...
01/13/1987
4337808Super-surfacer
A super-surfacer used for super-finishing a surface of timber, wherein the shaving blade has a length which is much larger than the width of the working table and is arranged to be movable reciprocally in a direction transversely to the timber feeding dir...
07/06/1982
3952615Saw chain sharpening system
Apparatus for sharpening cutters distributed along a saw chain, the apparatus including a support track along which a reach of saw chain may be moved and multiple sharpeners spaced along the path for sharpening cutters carried thereto. Multiple cutter eng...
04/27/1976
 
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