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US 9,789,552 B2Granted
Saw blade and saw blade tooth construction
AssigneeIrwin Industrial Tool Company
InventorsDavid Philip Engvall, Craig Davidson
Life of this patent
Estimating the term…
Abstract
A saw blade includes a plate with teeth. A tip pocket is formed in each of the teeth where the tip pocket has a first end and a second end and a continuously curved surface between the first end and the second end. A tip has a back face shaped to match the continuously curved surface. A joint joins the tip to the plate where the joint extends for substantially the length of the surface of the tip pocket and the back face. The continuously curved surface may have a wave profile. A top face of the tip and a peripheral face of the tooth may be coplanar.
Claims20
A method of making a saw blade comprising:
- forming a plate defining at least one tooth;
- forming a tip pocket in the tooth, the tip pocket having a first end and a second end and a continuously curved surface comprising a first wave profile comprising a first plurality of peaks and troughs positioned along a front face of the tooth, facing a direction of rotation of the saw blade, and extending between the first end and the second end;
- forming a tip comprising:
- a cutting edge;
- a back face comprising a proximate end and a distal end and a second curved surface comprising a second wave profile comprising a second plurality of peaks and troughs facing a second direction opposite of the direction of rotation of the saw blade and extending from the proximate end to the distal end and shaped to match the continuously curved surface of the tip pocket;
- a front face extending from the proximate end of the back face;
- and
- a top face extending from the distal end of the back face to the front face;
- brazing the tip to the plate;
- and
- forming the top face on the tip to create the cutting edge and a peripheral face on the tooth.
8 more elements
A tooth tip configured to be insertable into a tip pocket of a tooth of a saw blade, the tooth tip comprising:
- a cutting edge;
- a back face comprising a proximate end and a distal end and a second curved surface comprising a second wave profile comprising a second plurality of peaks and troughs extending from the proximate end to the distal end and shaped to match a first continuously curved surface of the tip pocket, wherein the second wave profile comprising the second plurality of peaks and troughs is configured to face a second direction opposite a direction of rotation of the saw blade when the tooth tip is inserted into the tip pocket of the tooth;
- a front face extending from the proximate end of the back face;
- and
- a top face extending from the distal end of the back face to the front face.
2 more elements
A saw blade comprising:
- a plate defining at least one tooth;
- a tip pocket formed in the tooth, the tip pocket having a first end and a second end and a continuously curved surface comprising a first wave profile comprising a first plurality of peaks and troughs positioned along a front face of the tooth, facing a direction of rotation of the saw blade and extending between the first end and the second end;
- a tip comprising:
- a cutting edge;
- a back face comprising a proximate end and a distal end and a second curved surface comprising a second wave profile comprising a second plurality of peaks and troughs facing a second direction opposite of the direction of rotation of the saw blade and extending from the proximate end to the distal end and shaped to match the continuously curved surface of the tip pocket;
- a front face extending from the proximate end of the back face;
- and
- a top face extending from the distal end of the back face to the front face;
- and
- a joint joining the tip to the plate where the joint extends for substantially the length of the surface of the tip pocket and the back face.
7 more elements
A saw blade comprising:
- a plate defining at least one tooth;
- a tip pocket formed in the tooth, the tip pocket having a first end and a second end and a continuously curved surface defining a wave profile comprising a first plurality of peaks and troughs positioned along a front face of the tooth, facing a direction of rotation of the saw blade and extending between the first end and the second end;
- a tip comprising:
- a cutting edge;
- and
- a back face comprising a proximate end and a distal end and a second curved surface comprising a corresponding wave profile comprising a second plurality of peaks and troughs facing a second direction opposite of the direction of rotation of the saw blade and extending from the proximate end to the distal end and shaped to match the continuously curved surface of the tip pocket;
- and
- a joint joining the tip to the plate where the joint extends for substantially the length of the surface of the tip pocket and the back face.
5 more elements
Dependencies are inferred from the claim text.