Variable tooth saw blade
First Claim
Patent Images
1. A saw blade comprising:
- a flat, circular disc having a peripheral outer edge and a center hole;
a plurality of circumferentially-spaced teeth each having a substantially axially extending cutting edge and projecting radially outwardly from the peripheral outer edge;
a first group of the cutting edges defining a first circumferential width between each adjacent pair of the cutting edges in the first group;
a second group of the cutting edges defining a second circumferential width between each adjacent pair of the cutting edges in the second group;
the second circumferential width differing from the first circumferential width; and
a third group of cutting edges defining a third circumferential width as the distance between adjacent the cutting edges in the third group;
at least one of the first, second and third groups including at least three of the cutting edges; and
the third circumferential width differing from the first and second circumferential widths.
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Accused Products
Abstract
An apparatus for cutting materials and more specifically an improved saw blade includes a plurality of variable teeth thereon. The variable tooth saw blade cuts faster and smoother while reducing harmonic vibrations. Specifically, the teeth on the saw blade are grouped into sections with differing circumferential widths and differing spacing between the sections.
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Citations
46 Claims
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1. A saw blade comprising:
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a flat, circular disc having a peripheral outer edge and a center hole; a plurality of circumferentially-spaced teeth each having a substantially axially extending cutting edge and projecting radially outwardly from the peripheral outer edge; a first group of the cutting edges defining a first circumferential width between each adjacent pair of the cutting edges in the first group; a second group of the cutting edges defining a second circumferential width between each adjacent pair of the cutting edges in the second group;
the second circumferential width differing from the first circumferential width; anda third group of cutting edges defining a third circumferential width as the distance between adjacent the cutting edges in the third group;
at least one of the first, second and third groups including at least three of the cutting edges; and
the third circumferential width differing from the first and second circumferential widths. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45)
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46. A saw blade comprising:
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a flat, circular disc having a peripheral outer edge and a center hole, the disc being divided into a first half and a second half, each half being a copy exact of the other half positioned in a diametrically opposite manner; a plurality of circumferentially-spaced teeth each having a substantially axially extending cutting edge and projecting radially outwardly from the peripheral outer edge; a first group of the cutting edges in each half having five cutting edges including a first cutting edge and a last cutting edge defining therebetween a first group circumferential width of approximately fifty-six degrees; a second group of the cutting edges in each half having three cutting edges including a first cutting edge and a last cutting edge defining therebetween a second group circumferential width of approximately forty degrees; a third group of the cutting edges in each half having two cutting edges including a first cutting edge and a last cutting edge defining therebetween a third group circumferential width of approximately twenty-five degrees; a first circumferential space being between the first and second groups in each half and having an approximately fourteen-degree circumferential width; a second circumferential space being between the second and third groups in each half and having an approximately twenty-degree circumferential width; and a third circumferential space being between the third group in each half and the first group in the respective other half and having an approximately twenty-five-degree circumferential width.
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Specification