Cutting tool

Patent metadata

Field	Value
Publication number	US-11278975-B2
Application number	US-201815981481-A
Country	US
Kind code	B2
Filing date	May 16, 2018
Priority date	May 18, 2017
Publication date	Mar 22, 2022
Grant date	Mar 22, 2022

Abstract

A saw blade includes a body and a cutting portion coupled to an edge of the body. The cutting portion includes a plurality of cutting teeth. The plurality of cutting teeth includes a first tooth form with an abrasive grit and a second tooth form without an abrasive grit.

First claim

What is claimed is:

1. A reciprocating saw blade comprising:
a body including a body plane; and
a cutting portion coupled to an edge of the body, the cutting portion including a plurality of cutting teeth defining a linear cutting edge of the saw blade, the plurality of cutting teeth including a plurality of first tooth forms each with an abrasive grit and a plurality of second tooth forms each without an abrasive grit,
wherein each first tooth form includes a tooth body with a tip having no clearance angle relative to the cutting edge,
wherein each second tooth form includes a tip and a relief surface extending from the tip, the relief surface being sloped relative to the cutting edge, and
wherein the plurality of cutting teeth are arranged in a repeating pattern of one or more first tooth forms, followed by one or more second tooth forms, followed by one or more first tooth forms, followed by one or more second tooth forms;
wherein the abrasive grit on the tips of the first tooth forms define a first plane and the tips of the second tooth forms define a second plane that is co-planar with the first plane; and
wherein the first plane and the second plane are perpendicular to the body plane.

2. The reciprocating saw blade of claim 1 , further comprising an attachment portion coupled to the body and configured to attach to a power tool.

3. The reciprocating saw blade of claim 2 , wherein the attachment portion includes a tang and an aperture.

4. The reciprocating saw blade of claim 3 , wherein the body defines a longitudinal axis, wherein the attachment portion is coupled to an end portion of the body, and wherein the attachment portion is angled relative to the longitudinal axis.

5. The reciprocating saw blade of claim 1 , wherein the abrasive grit includes one selected from the group consisting of tungsten carbide, diamond, silicon carbide, and cubic boron nitride.

6. The reciprocating saw blade of claim 1 , wherein the first tooth form includes a rake face that extends from the edge of the body.

7. The reciprocating saw blade of claim 6 , wherein a portion of the abrasive grit extends beyond the rake face in a cutting direction of the saw blade.

8. The reciprocating saw blade of claim 1 , wherein the second tooth form includes a rake face extending from the tip.

9. The reciprocating saw blade of claim 8 , wherein the tip is made out of carbide.

10. The reciprocating saw blade of claim 8 , wherein the second tooth form further includes a protrusion extending from an end of the relief surface opposite from the tip.

11. The reciprocating saw blade of claim 1 , wherein the first tooth form is immediately adjacent the second tooth form and only separated by a single gullet.

12. The reciprocating saw blade of claim 1 , wherein the plurality of first tooth forms is unset, and wherein at least some of the plurality of second tooth forms are set.

13. The reciprocating saw blade of claim 1 , wherein the first tooth form has a kerf that is greater than a kerf of the second tooth form.

14. A reciprocating saw blade comprising:
a body defining a longitudinal axis, the body including a first face and a second face opposite the first face; and
a cutting portion coupled to an edge of the body, the cutting portion including a plurality of cutting teeth defining a linear cutting edge of the saw blade, the plurality of cutting teeth including
a first tooth form having a tooth body with no clearance angle relative to the cutting edge and an abrasive grit, and
a second tooth form having a tip, a rake face extending from the tip and a relief surface extending from the tip and sloped relative to the cutting edge;

wherein the abrasive grit of the first tooth form and the tip of the second tooth form define a plane that is parallel to the longitudinal axis; and
wherein the plane is perpendicular to the first and second faces, and wherein the plurality of cutting teeth includes a plurality of first tooth forms each having a tooth body with no clearance angle relative to the cutting edge and an abrasive grit, and a plurality of second tooth forms each having a tip, a rake face extending from the tip, and a relief surface extending from the tip and sloped relative to the cutting edge, and
wherein the plurality of cutting teeth are arranged in a repeating pattern of one or more first tooth forms, followed by one or more second tooth forms, followed by one or more first tooth forms, followed by one or more second tooth forms.

15. The reciprocating saw blade of claim 14 , further comprising an attachment portion coupled to the body and configured to attach to a power tool.

Assignees

• Milwaukee Electric Tool Corp

Inventors

• Dietz Carl
• Felton Shane N

Classifications

• B23D61/128

  Sabre saw blades · CPC title

• B28D1/127

  Straight, i.e. flat, saw blades; strap saw blades · CPC title

• B23D61/127

  of special material · CPC title

• B23D61/123

  Details of saw blade body · CPC title

• B23D61/121 Primary

  Types of set; Variable teeth, e.g. variable in height or gullet depth; Varying pitch; Details of gullet · CPC title