Back to results
US 9,314,893 B2Granted
Sharpening fixture, portable sharpening tool and kit
OwnerStephen A. Montgomery, Paul Terryinventors
Life of this patent
Estimating the term…
Abstract
The present invention is a blade sharpening fixture, tool and kit for use with logging equipment with a rotary drum that has dozens of staggered blades mounted thereupon. The sharpening tool clamps onto a single blade of the logging equipment while the blade is still mounted on the rotary drum, so that the blade may be sharpened in the field. The sharpening tool includes a sharpening fixture and a grinder. The sharpening fixture includes a blade clamp for clamping onto the blade; a track attached to a sloped surface that can be positioned parallel or perpendicular to the blade; and a grinder connector assembly for securing the grinder securely and slidably to the track.
Claims21
A blade sharpening fixture for use in sharpening an angled cutting surface of a blade, said sharpening fixture comprising:
- a clamp side and a slide side, wherein each of said clamp side and said slide side comprise an attachment portion that allows said clamp side to engage and move linearly relative to said slide side and a sloped surface which is sloped at an angle substantially equal to an angle of the angled cutting surface of the blade to be sharpened, and wherein said clamp side and said slide side define a blade opening shaped and dimensioned to engage the blade during sharpening;
- a blade clamp for securely and removably clamping the blade within the blade opening between said clamp side and said slide side of said sharpening fixture, wherein said blade clamp comprises a latch toggle clamp;
- a track attached to said sloped surface of said slide side;
- and
- a grinder connector assembly for holding a grinder in slidable relation to said track.
2 more elements
A blade sharpening tool for use in sharpening an angled cutting surface of a blade, said sharpening tool comprising:
- a grinder comprising;
- a grinding wheel;
- a grinder motor adapted to rotate said grinding wheel, said grinder motor comprising at least one threaded opening therein;
- and
- a handle having a threaded bolt dimensioned to mate with said at least one threaded opening of said grinder motor;
- and
- a sharpening fixture attached to said grinder, said sharpening fixture comprising:
- a clamp side and a slide side, wherein each of said clamp side and said slide side comprise an attachment portion that allows said clamp side to engage and move linearly relative to said slide side and a sloped surface which is sloped at an angle substantially equal to an angle of the angled cutting surface of the blade to be sharpened, and wherein said clamp side and said slide side define a blade opening shaped and dimensioned to engage the blade during sharpening;
- a blade clamp for securely and removably clamping said clamp side and said slide side to the blade, wherein said blade clamp comprises a latch toggle clamp;
- a track attached to said sloped surface of said slide side;
- and
- a grinder connector assembly for holding said grinder in slidable relation to said track such that a plane formed by a flat portion of said grinding wheel is disposed in substantially parallel relation to a plane formed by said sloped surface of said slide portion of said sharpening fixture;
- wherein said grinder is securely and slidably attached to said sharpening fixture.
10 more elements
A kit for forming a blade sharpening tool for use in sharpening an angled cutting surface of a blade, said kit comprising:
- a grinder comprising;
- a grinding wheel;
- a grinder motor adapted to rotate said grinding wheel, said grinder motor comprising at least one threaded opening therein;
- and
- a handle having a threaded bolt dimensioned to mate with said at least one threaded opening of said grinder motor;
- and
- a sharpening fixture dimensioned for attachment to said grinder, said sharpening fixture comprising:
- a clamp side and a slide side, wherein each of said clamp side and said slide side comprise an attachment portion that allows said clamp side to engage and move linearly relative to said slide side and a sloped surface which is sloped at an angle substantially equal to an angle of the angled cutting surface of the blade to be sharpened, and wherein said clamp side and said slide side define a blade opening shaped and dimensioned to engage the blade during sharpening, and wherein said slide side comprises:
- a first plurality of track positioning holes and a second plurality of track positioning holes disposed in perpendicular relation to said first plurality of track positing holes;
- and
- at least one track bolt for holding said track in a certain position with relation to said slide side of said sharpening fixture when said track bolt is secured through said track and one of said track positioning holes;
- a blade clamp for securely and removably clamping said clamp side and said slide side to the blade;
- a track attached to said sloped surface of said slide side;
- and
- a grinder connector assembly for holding said grinder in slidable relation to said track such that a plane formed by a flat portion of said grinding wheel is disposed in substantially parallel relation to a plane formed by said sloped surface of said slide portion of said sharpening fixture.
12 more elements
A blade sharpening tool for use in sharpening an angled cutting surface of a blade, said sharpening tool comprising:
- a grinder comprising;
- a grinding wheel;
- a grinder motor adapted to rotate said grinding wheel, said grinder motor comprising at least one threaded opening therein;
- and
- a handle having a threaded bolt dimensioned to mate with said at least one threaded opening of said grinder motor;
- and
- a sharpening fixture attached to said grinder, said sharpening fixture comprising:
- a clamp side and a slide side, wherein:
- each of said clamp side and said slide side comprise:
- an attachment portion that allows said clamp side to engage and move linearly relative to said slide side;
- and
- a sloped surface which is sloped at an angle substantially equal to an angle of the angled cutting surface of the blade to be sharpened;
- said clamp side and said slide side define a blade opening shaped and dimensioned to engage the blade during sharpening;
- said slide side comprises a plurality of track positioning holes and at least one track bolt for holding said track in a certain position with relation to said slide side of said sharpening fixture when said track bolt is secured through said track and one of said track positioning holes;
- and
- said plurality of track positioning holes comprises a first plurality of track positioning holes and a second plurality of track positioning holes disposed in perpendicular relation to said first plurality of track positing holes;
- a blade clamp for securely and removably clamping said clamp side and said slide side to the blade;
- a track attached to said sloped surface of said slide side;
- and
- a grinder connector assembly for holding said grinder in slidable relation to said track such that a plane formed by a flat portion of said grinding wheel is disposed in substantially parallel relation to a plane formed by said sloped surface of said slide portion of said sharpening fixture;
- wherein said grinder is securely and slidably attached to said sharpening fixture.
18 more elements
Dependencies are inferred from the claim text.