CA2571693A1 - Honing jig - Google Patents
Honing jig Download PDFInfo
- Publication number
- CA2571693A1 CA2571693A1 CA002571693A CA2571693A CA2571693A1 CA 2571693 A1 CA2571693 A1 CA 2571693A1 CA 002571693 A CA002571693 A CA 002571693A CA 2571693 A CA2571693 A CA 2571693A CA 2571693 A1 CA2571693 A1 CA 2571693A1
- Authority
- CA
- Canada
- Prior art keywords
- blade
- block
- jig
- angle
- inclination
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D15/00—Hand tools or other devices for non-rotary grinding, polishing, or stropping
- B24D15/06—Hand tools or other devices for non-rotary grinding, polishing, or stropping specially designed for sharpening cutting edges
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B3/00—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
- B24B3/36—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of cutting blades
- B24B3/38—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of cutting blades for planing wood, e.g. cutter blades
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
- B24B41/066—Work supports, e.g. adjustable steadies adapted for supporting work in the form of tools, e.g. drills
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Description
This invention relates to honing jigs and more particularly to a jig for sharpening the cutting edge of a blade in a tool such as a plane and a chisel. In one embodiment of the invention, the jig has provision for adjustment of the inclination of the blade according to the angle of its cutting surface. In another embodiment, the jig has provision for honing a secondary bevel on the cutting edge.
The conventional method of sharpening a blade of a chisel or a plane is to clamp the blade to a honing tool having a roller and to push the tool across an abrasive surface such as that of a whetstone. Such a method has a number of shortcomings, one of which is that skill is required to operate the tool properly. Many carpenters and particularly hobbyists lack such skill and do more damage than good to a blade when they attempt to sharpen it by this method.
Another shortcoming of the method is that the tool tends to run off the whetstone as it is pushed back and forth. Unless particular care is taken to prevent this, the blade can be damaged at this time. Furthermore, the operator may injure himself since his hand may be struck by the blade if his hand is in its path.
The honing jig of the subject invention overcomes these problems. Briefly the jig comprises a support having means for mounting an abrasive substance thereon;
and a carriage movably mounted to the support and having means for removably fastening a blade thereto in such a way that the blade contacts the abrasive substance and moves relative to the abrasive substance upon movement of the carriage with resulting honing of the blade.
The honing jig of the invention is described with reference to the accompanying drawings in which:
Figure 1 is a perspective view of the honing jig;
Figure 2 is an elevation of a carriage and a swivelling clamp of the jig together with the upper portion of a blade;
Figure 3 is a plan view of a portion of the swivelling clamp;
Figure 4 is an exploded perspective view of the components which are illustrated in Figure 2 and which make up a primary adjusting apparatus;
Figures 5 and 6 are elevations of the carriage; swivelling clamp, blade, whetstone and clamp for the stone;
Figure 7 is an exploded perspective view of the components which make up a secondary adjustment apparatus;
Figures 8 and 9 are elevations of the components of the secondary adjustment apparatus.
In Figure 8, the apparatus is deactivated whereas in Figure 9 it is activated;
Figures 10 and 11 are elevations of the whetstone showing the way in which the secondary adjustment apparatus operates.
Like reference characters refer to like parts throughout the description of the drawings.
With reference to Figure 1, the honing jig has a base 10 on which is mounted, at one end, two pairs of spaced support blocks 12a,b. An end member 14 has opposing trunnions 16 which
The conventional method of sharpening a blade of a chisel or a plane is to clamp the blade to a honing tool having a roller and to push the tool across an abrasive surface such as that of a whetstone. Such a method has a number of shortcomings, one of which is that skill is required to operate the tool properly. Many carpenters and particularly hobbyists lack such skill and do more damage than good to a blade when they attempt to sharpen it by this method.
Another shortcoming of the method is that the tool tends to run off the whetstone as it is pushed back and forth. Unless particular care is taken to prevent this, the blade can be damaged at this time. Furthermore, the operator may injure himself since his hand may be struck by the blade if his hand is in its path.
The honing jig of the subject invention overcomes these problems. Briefly the jig comprises a support having means for mounting an abrasive substance thereon;
and a carriage movably mounted to the support and having means for removably fastening a blade thereto in such a way that the blade contacts the abrasive substance and moves relative to the abrasive substance upon movement of the carriage with resulting honing of the blade.
The honing jig of the invention is described with reference to the accompanying drawings in which:
Figure 1 is a perspective view of the honing jig;
Figure 2 is an elevation of a carriage and a swivelling clamp of the jig together with the upper portion of a blade;
Figure 3 is a plan view of a portion of the swivelling clamp;
Figure 4 is an exploded perspective view of the components which are illustrated in Figure 2 and which make up a primary adjusting apparatus;
Figures 5 and 6 are elevations of the carriage; swivelling clamp, blade, whetstone and clamp for the stone;
Figure 7 is an exploded perspective view of the components which make up a secondary adjustment apparatus;
Figures 8 and 9 are elevations of the components of the secondary adjustment apparatus.
In Figure 8, the apparatus is deactivated whereas in Figure 9 it is activated;
Figures 10 and 11 are elevations of the whetstone showing the way in which the secondary adjustment apparatus operates.
Like reference characters refer to like parts throughout the description of the drawings.
With reference to Figure 1, the honing jig has a base 10 on which is mounted, at one end, two pairs of spaced support blocks 12a,b. An end member 14 has opposing trunnions 16 which
2 extend into bores in each support block so that each end member is pivotal with respect to the base.
An end of one of a pair of spaced guide rods 18a,b is accommodated in each end member. The opposite ends of the guide rods are mounted to a dual support block 20, described below.
A sliding tube 22 is mounted for sliding to each guide rod. A carriage, generally 24, includes a transverse plate 26 which has a passageway 28 at opposite sides for receipt of the sliding tube. The sliding tubes are pressure fitted into the passageways so that the carriage is movable or slidable relative to the guide rods.
The carriage has a swivelling clamp 30 which swivels relative to the transverse plate. A
blade 32 to be sharpened is held firmly by the clamp so that its lower edge 32a is in contact with an abrasive substance such as a whetstone 34.
In the description that follows the swivelling clamp 30 is sometimes referred to as the "primary angle-adjusting apparatus" of the jig.
A pair of collars 36 acts as stop points for the carriage. Adjustments screws 38 permit the position of the collars to be moved.
The whetstone is seated on base 10 and is immobilized by stop members 40a,b at each of its ends. Stop member 40a is immovably fixed to the base while stop member 40b is movable in a T-slot 42 by loosening knob 44 so that the spacing between the two stop members can be
An end of one of a pair of spaced guide rods 18a,b is accommodated in each end member. The opposite ends of the guide rods are mounted to a dual support block 20, described below.
A sliding tube 22 is mounted for sliding to each guide rod. A carriage, generally 24, includes a transverse plate 26 which has a passageway 28 at opposite sides for receipt of the sliding tube. The sliding tubes are pressure fitted into the passageways so that the carriage is movable or slidable relative to the guide rods.
The carriage has a swivelling clamp 30 which swivels relative to the transverse plate. A
blade 32 to be sharpened is held firmly by the clamp so that its lower edge 32a is in contact with an abrasive substance such as a whetstone 34.
In the description that follows the swivelling clamp 30 is sometimes referred to as the "primary angle-adjusting apparatus" of the jig.
A pair of collars 36 acts as stop points for the carriage. Adjustments screws 38 permit the position of the collars to be moved.
The whetstone is seated on base 10 and is immobilized by stop members 40a,b at each of its ends. Stop member 40a is immovably fixed to the base while stop member 40b is movable in a T-slot 42 by loosening knob 44 so that the spacing between the two stop members can be
3 adjusted to accommodated whetstones of different lengths.
With reference to Figures 2 to 4, the swivelling clamp is composed of lower and upper jaws 46,48 respectively. The jaws are interconnected by a pair of threaded studs 50 which are fixed to the lower jaw and pass through openings in the upper jaw. Knobs 52 are threadably connected to the studs and loosening of the knobs allows the jaws to be manually separated to receive blade 32. Conversely, tightening of the knobs causes the jaws to immobilize the blade in position for sharpening.
Extending beneath the lower jaw is a block 54. The block is one of the components of the primary angle-adjusting apparatus and is sometimes referred to below as the "angle-adjusting block". The block has pins 55 which extend outwardly from its oppositely facing side walls and into openings in a pair of spaced apart ears 58 which extend outwardly from the rear wall 26a of the transverse plate. The front wall 54a of the angle-adjusting block closest to the transverse plate, as it extends downward, curves away from the transverse plate so that the block is free to pivot without interference by the transverse plate.
As angle-adjusting block 54 pivots, so too does the lower and upper jaws 46,48 of the clamp. The position of the block accordingly governs the inclination of the jaws and the inclination of the blade.
A number of apertures 56 extend through the transverse plate. The apertures are spaced apart from each other and which extend from the front wall to the rear wall 26b,a respectively.
With reference to Figures 2 to 4, the swivelling clamp is composed of lower and upper jaws 46,48 respectively. The jaws are interconnected by a pair of threaded studs 50 which are fixed to the lower jaw and pass through openings in the upper jaw. Knobs 52 are threadably connected to the studs and loosening of the knobs allows the jaws to be manually separated to receive blade 32. Conversely, tightening of the knobs causes the jaws to immobilize the blade in position for sharpening.
Extending beneath the lower jaw is a block 54. The block is one of the components of the primary angle-adjusting apparatus and is sometimes referred to below as the "angle-adjusting block". The block has pins 55 which extend outwardly from its oppositely facing side walls and into openings in a pair of spaced apart ears 58 which extend outwardly from the rear wall 26a of the transverse plate. The front wall 54a of the angle-adjusting block closest to the transverse plate, as it extends downward, curves away from the transverse plate so that the block is free to pivot without interference by the transverse plate.
As angle-adjusting block 54 pivots, so too does the lower and upper jaws 46,48 of the clamp. The position of the block accordingly governs the inclination of the jaws and the inclination of the blade.
A number of apertures 56 extend through the transverse plate. The apertures are spaced apart from each other and which extend from the front wall to the rear wall 26b,a respectively.
4 A series of apertures 60 extend inward from the curved area and are arranged, as illustrated in Figure 3, such that the first aperture 60a is highest and each aperture next in succession is lower than the immediately preceding aperture, the last aperture 60b being the lowest.
Each aperture formed in the block aligns with a separate aperture in the transverse plate.
In this regard, the first aperture 60a in the block aligns with the first aperture 56a in the plate, the second aperture 60c in the block aligns with the second aperture 56b and so on. However, since the apertures in the plate are arranged on a straight line whereas the apertures in the block are on a curve, the block must be pivoted to bring each of the pairs of apertures into alignment In Figure 4, the first aperture 56a in the plate is in alignment with the first aperture 60a in the block. In order to bring the second aperture in the plate into alignment with the second aperture in the block, the block must be pivoted clockwise. It will be understood that only one aperture in the transverse plate will align with one aperture in the angle-adjusting block at any given angle of the block. The next aperture in the plate will only align with the next aperture in the block when the block is be pivoted sufficiently and as the block is pivoted, the first apertures will move out of alignment.
In summary, each aperture in the transverse plate will align with only one aperture in the angle-adjusting block at any one time and when an aperture in one is in alignment with an aperture in the other, no other apertures will be in alignment. Only by pivoting the block will the other apertures in turn be brought into alignment. Pivoting of course causes jaws 46,48 to pivot with resulting pivoting of the blade so that the inclination of the blade will vary according to which apertures in the block and plate are in alignment.
The shank of a locating pin 64 is receivable in any one of the pairs of apertures in alignment. The pin acts to immobilize the block relative to the plate. Such immobilization causes a like immobilization of the blade.
With reference to Figure 5, angle 66 is a measure of the inclination of blade 32 relative to the upper surface of the whetstone 34. As indicated previously, that angle is adjustable according to which apertures in the plate and block are in alignment. The locating pin serves to immobilize the block and when the block is so immobilized, it is at a so-called "stop point". The number of stop points will of course equal the number of apertures in the block.
Movement of the block from one stop to the next causes an incremental change in the inclination of the blade.
The operation of the locating pin is as follows: first an operator immobilizes the swivel-ling clamp relative to the transverse plate at a predetermined angle by means of the locating pin.
He then places the cutting edge of a blade to be sharpened on the whetstone and secures the blade to the swivelling clamp. He then removes the pin to allow him to force the cutting edge into firm and sold contact with the whetstone. The operator can then move the blade back and forth on the whetstone in order to sharpen the cutting edge. Friction between the cutting edge and the whetstone will hold the blade at the same angle.
Should the operator desire to alter the existing angle of the cutting edge, he would dis-connect the blade from the swivelling clamp, set the swivelling clamp at the new angle by means of the locating pin, place the blade so that its cutting edge is in contact with the whetstone, secure the blade to the swivelling clamp and finally, remove the locating pin. The cutting edge of the blade is then ready to be sharpened as before.
As previously indicated, the location of the apertures in the block will determine the angle of the blade at each stop point. It is preferred that the angle at each stop point be an integer and the angle between successive stop points be always the same. For example the angle at the stop points can be 15, 20, 25, 30 degrees and so on.
In Figure 6, the carriage has moved to the right from the position illustrated in Figure 5 and the lower wall of the blade has moved along the upper surface of the whetstone.
With reference again to Figure 1, the primary angle-adjusting apparatus is the swivelling clamp as previously indicated. The secondary angle-adjusting means is the dual support block 20 in conjunction with a pedestal 68, described below.
With reference to Figure 7, block 20 is in one piece and both guide rods are attached to it.
The block is seated on pedestal 68 which is slidable on base 10. A handle 70 is provided for facilitating the sliding.
The pedestal has a pair of slots 72 for receipt of threaded studs 74 which are fixed to the base and project upwardly therefrom. The pedestal has a stepped upper wall, the inner step 68a being lower than the outer 68b.
The dual support block has a pair of apertures 76 for receipt of studs 74.
Knobs 78 are threadably received on the upper ends of the studs. Tightening of the knobs immobilizes both the support block and the pedestal. Loosening of the knobs allows the support block to be raised so that the pedestal is free to slide forward or backward. The pedestal can be slid from the position illustrated in Figure 8 in which the support block is resting on the lower step 68a to the position illustrated in Figure 9 in which the support block is resting on the upper step 68b.
The ends of the guide rods opposite the dual support block are pivotally connected to support blocks 12a,b as previously indicated. Sliding of the pedestal from the position illustrated in Figure 8 to the position illustrated in Figure 9 causes the dual support block 20 to rise with resulting tilting of the guide rods and rising of the swivelling clamp. As the swivelling clamp rises, the blade tilts on the whetstone.
In Figure 10, blade 32 is shown as it would appear when the pedestal is in the rear position illustrated in Figure 8. Figure 11 shows the blade as it would appear when the pedestal is in the forward position illustrated in Figure 9.
From the foregoing description it will be understood that the secondary angle-adjusting means., i.e. the dual support block 20 and pedestal 68 permits fine adjustment of the inclination of the blade from the inclination of the blade at each said stop point of the swivelling clamp.
When the blade is in the position illustrated in Figure 11, its forward edge 32b is below its rear edge 32c. Sliding of the blade along the whetstone will form a secondary bevel on its forward edge.
It will be further understood, of course, that modifications can be made in the structure of the honing jig of the invention without departing from the scope of the invention as defined in the following claims.
Each aperture formed in the block aligns with a separate aperture in the transverse plate.
In this regard, the first aperture 60a in the block aligns with the first aperture 56a in the plate, the second aperture 60c in the block aligns with the second aperture 56b and so on. However, since the apertures in the plate are arranged on a straight line whereas the apertures in the block are on a curve, the block must be pivoted to bring each of the pairs of apertures into alignment In Figure 4, the first aperture 56a in the plate is in alignment with the first aperture 60a in the block. In order to bring the second aperture in the plate into alignment with the second aperture in the block, the block must be pivoted clockwise. It will be understood that only one aperture in the transverse plate will align with one aperture in the angle-adjusting block at any given angle of the block. The next aperture in the plate will only align with the next aperture in the block when the block is be pivoted sufficiently and as the block is pivoted, the first apertures will move out of alignment.
In summary, each aperture in the transverse plate will align with only one aperture in the angle-adjusting block at any one time and when an aperture in one is in alignment with an aperture in the other, no other apertures will be in alignment. Only by pivoting the block will the other apertures in turn be brought into alignment. Pivoting of course causes jaws 46,48 to pivot with resulting pivoting of the blade so that the inclination of the blade will vary according to which apertures in the block and plate are in alignment.
The shank of a locating pin 64 is receivable in any one of the pairs of apertures in alignment. The pin acts to immobilize the block relative to the plate. Such immobilization causes a like immobilization of the blade.
With reference to Figure 5, angle 66 is a measure of the inclination of blade 32 relative to the upper surface of the whetstone 34. As indicated previously, that angle is adjustable according to which apertures in the plate and block are in alignment. The locating pin serves to immobilize the block and when the block is so immobilized, it is at a so-called "stop point". The number of stop points will of course equal the number of apertures in the block.
Movement of the block from one stop to the next causes an incremental change in the inclination of the blade.
The operation of the locating pin is as follows: first an operator immobilizes the swivel-ling clamp relative to the transverse plate at a predetermined angle by means of the locating pin.
He then places the cutting edge of a blade to be sharpened on the whetstone and secures the blade to the swivelling clamp. He then removes the pin to allow him to force the cutting edge into firm and sold contact with the whetstone. The operator can then move the blade back and forth on the whetstone in order to sharpen the cutting edge. Friction between the cutting edge and the whetstone will hold the blade at the same angle.
Should the operator desire to alter the existing angle of the cutting edge, he would dis-connect the blade from the swivelling clamp, set the swivelling clamp at the new angle by means of the locating pin, place the blade so that its cutting edge is in contact with the whetstone, secure the blade to the swivelling clamp and finally, remove the locating pin. The cutting edge of the blade is then ready to be sharpened as before.
As previously indicated, the location of the apertures in the block will determine the angle of the blade at each stop point. It is preferred that the angle at each stop point be an integer and the angle between successive stop points be always the same. For example the angle at the stop points can be 15, 20, 25, 30 degrees and so on.
In Figure 6, the carriage has moved to the right from the position illustrated in Figure 5 and the lower wall of the blade has moved along the upper surface of the whetstone.
With reference again to Figure 1, the primary angle-adjusting apparatus is the swivelling clamp as previously indicated. The secondary angle-adjusting means is the dual support block 20 in conjunction with a pedestal 68, described below.
With reference to Figure 7, block 20 is in one piece and both guide rods are attached to it.
The block is seated on pedestal 68 which is slidable on base 10. A handle 70 is provided for facilitating the sliding.
The pedestal has a pair of slots 72 for receipt of threaded studs 74 which are fixed to the base and project upwardly therefrom. The pedestal has a stepped upper wall, the inner step 68a being lower than the outer 68b.
The dual support block has a pair of apertures 76 for receipt of studs 74.
Knobs 78 are threadably received on the upper ends of the studs. Tightening of the knobs immobilizes both the support block and the pedestal. Loosening of the knobs allows the support block to be raised so that the pedestal is free to slide forward or backward. The pedestal can be slid from the position illustrated in Figure 8 in which the support block is resting on the lower step 68a to the position illustrated in Figure 9 in which the support block is resting on the upper step 68b.
The ends of the guide rods opposite the dual support block are pivotally connected to support blocks 12a,b as previously indicated. Sliding of the pedestal from the position illustrated in Figure 8 to the position illustrated in Figure 9 causes the dual support block 20 to rise with resulting tilting of the guide rods and rising of the swivelling clamp. As the swivelling clamp rises, the blade tilts on the whetstone.
In Figure 10, blade 32 is shown as it would appear when the pedestal is in the rear position illustrated in Figure 8. Figure 11 shows the blade as it would appear when the pedestal is in the forward position illustrated in Figure 9.
From the foregoing description it will be understood that the secondary angle-adjusting means., i.e. the dual support block 20 and pedestal 68 permits fine adjustment of the inclination of the blade from the inclination of the blade at each said stop point of the swivelling clamp.
When the blade is in the position illustrated in Figure 11, its forward edge 32b is below its rear edge 32c. Sliding of the blade along the whetstone will form a secondary bevel on its forward edge.
It will be further understood, of course, that modifications can be made in the structure of the honing jig of the invention without departing from the scope of the invention as defined in the following claims.
Claims (4)
1. A honing jig comprising: a support having means for mounting an abrasive substance thereon; and a carriage movably mounted to said support and having means for removably fastening a blade thereto in such a way that said blade contacts said abrasive substance and moves relative to said abrasive substance upon movement of said carriage with resulting honing of said blade.
2. The jig of claim 1 further including primary angle-adjusting apparatus for causing adjustment of the inclination of said blade relative to said abrasive substance .
3. The jig of claim 2 further including means for causing said primary angle-adjusting apparatus to move between successive stop points with resulting incremental changes in the inclination of said blade.
4. The jig of claim 3 further including secondary angle-adjusting apparatus for causing fine adjustment of the inclination of said blade from the inclination of said blade at each said stop point.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002571693A CA2571693A1 (en) | 2006-12-15 | 2006-12-15 | Honing jig |
| CA 2614956 CA2614956A1 (en) | 2006-12-15 | 2007-12-14 | Honing jig |
| US11/956,823 US20090004956A1 (en) | 2006-12-15 | 2007-12-14 | Honing jig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002571693A CA2571693A1 (en) | 2006-12-15 | 2006-12-15 | Honing jig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2571693A1 true CA2571693A1 (en) | 2008-06-15 |
Family
ID=39537612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002571693A Abandoned CA2571693A1 (en) | 2006-12-15 | 2006-12-15 | Honing jig |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US20090004956A1 (en) |
| CA (1) | CA2571693A1 (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8197304B2 (en) * | 2007-09-27 | 2012-06-12 | Woodpeckers, Inc. | Method and apparatus for sharpening a tool blade |
| US8430723B2 (en) * | 2009-04-23 | 2013-04-30 | Guspro Inc. | Contour guide for ice skate sharpener |
| US20110201261A1 (en) * | 2009-09-01 | 2011-08-18 | Ele Grigsby | Scraper Accommodating Different Sizes of Blades |
| WO2011028693A1 (en) * | 2009-09-01 | 2011-03-10 | Ele Grigsby | Scraper and sharpening tool combination and sharpening method |
| CN102689217B (en) * | 2012-05-31 | 2014-06-18 | 北京航空航天大学 | Device for correcting double-shaft micro-deformation blade reference |
| CN104416435A (en) * | 2013-09-09 | 2015-03-18 | 珠海格力电器股份有限公司 | Electrode grinding device |
| US9221144B2 (en) * | 2013-12-23 | 2015-12-29 | David G. Powell | Universal sharpening jig for a cutting blade |
| US9469009B1 (en) * | 2016-02-05 | 2016-10-18 | Andrzej Kazimierczuk | Adjustable tool holding surface grinder fixture |
| CN109382710A (en) * | 2017-08-11 | 2019-02-26 | 洪福雄 | Automatic knife-grinding apparatus |
| US10759017B2 (en) * | 2018-03-23 | 2020-09-01 | David G. Powell | Glideway crowning plate and method thereof for creating a crown on a cutting edge of a cutting blade with a sharpening jig |
| US20220314387A1 (en) * | 2021-03-30 | 2022-10-06 | Choon's Kitchenware, LLC | Blade sharpening assembly |
| USD990274S1 (en) * | 2021-03-30 | 2023-06-27 | Choon's Kitchenware, LLC | Blade sharpening device |
| USD990275S1 (en) * | 2021-03-30 | 2023-06-27 | Choon's Kitchenware, LLC | Blade sharpening device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2644279A (en) * | 1950-08-24 | 1953-07-07 | Stankovich George Peter | Mounting apparatus for sharpening tools, blades, and the like |
| US2753666A (en) * | 1952-01-18 | 1956-07-10 | Elmer C Sasse | Scissors sharpener |
| US3054229A (en) * | 1960-11-15 | 1962-09-18 | Reliable Packing Company | Adjustable machines for grinding knives and the like |
| DE2121985A1 (en) * | 1970-05-06 | 1971-11-25 | Temtool PTY. Ltd., Notting Hill, Victoria (Australien) | Method and device for grinding tool cutting edges |
| US3879899A (en) * | 1973-03-28 | 1975-04-29 | William J Ribar | Scissors sharpener |
| US4217735A (en) * | 1978-11-02 | 1980-08-19 | Mcgeoch James | Tool sharpening device |
| US4669227A (en) * | 1985-06-24 | 1987-06-02 | Treppner Bernaht C | Angle plate apparatus with precisely adjustable workpiece holder |
| DE59107669D1 (en) * | 1990-11-26 | 1996-05-15 | Quetin Roswitha | DEVICE FOR SHARPENING, GRINDING AND POLISHING DENTAL, PERIODONTAL AND / OR SURGICAL INSTRUMENTS |
| US5157870A (en) * | 1991-02-08 | 1992-10-27 | Pike Arthur E | Precision clamp scissors sharpening system |
| US5218787A (en) * | 1991-09-27 | 1993-06-15 | Rice Gary F | Apparatus for sharpening implements |
| US5582542A (en) * | 1994-08-08 | 1996-12-10 | Stein; Sanford | Apparatus and method for sharpening a cutting tool |
| US5938511A (en) * | 1997-11-21 | 1999-08-17 | Patterson; James D. | Grinding guide assembly |
| US7112124B1 (en) * | 2003-07-28 | 2006-09-26 | Donald Naples | Rotary blade sharpener |
| US6926596B1 (en) * | 2004-02-05 | 2005-08-09 | Pacific Rack & Machine | Tool sharpening apparatus |
| US7056195B2 (en) * | 2004-09-16 | 2006-06-06 | Geoffrey John Hamilton Evans | Apparatus and method for sharpening tool blades |
| US7281969B2 (en) * | 2005-05-11 | 2007-10-16 | Donald Naples | Tool sharpening and compound honing jig |
-
2006
- 2006-12-15 CA CA002571693A patent/CA2571693A1/en not_active Abandoned
-
2007
- 2007-12-14 US US11/956,823 patent/US20090004956A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| US20090004956A1 (en) | 2009-01-01 |
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| Date | Code | Title | Description |
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| FZDE | Dead |