Reciprocating saw blade with tangs on each end and related method

Patent metadata

Field	Value
Publication number	US-9737943-B2
Application number	US-201514590671-A
Country	US
Kind code	B2
Filing date	Jan 6, 2015
Priority date	Mar 2, 2009
Publication date	Aug 22, 2017
Grant date	Aug 22, 2017

Abstract

A reciprocating saw blade has a first end with a first tang and a second end with a second tang. The first and second tangs are alternatively engageable with the chuck of a reciprocating saw. The reciprocating saw blade defines a substantially uniform cutting edge extending from approximately the first end to approximately the second end of the blade. The first tang is engageable with the chuck of the reciprocating saw for fixedly securing the first end of the blade to the reciprocating saw and forming with the second tang the free end of the saw blade. Alternatively, the second tang is engageable with the chuck of the reciprocating saw for fixedly securing the second end of the blade to the reciprocating saw and forming with the first tang the free end of the reciprocating saw blade drivable in a reciprocating motion by the reciprocating saw.

First claim

What is claimed is:

1. A method comprising:
(i) providing a reciprocating saw blade for use in a reciprocating saw, the reciprocating saw blade comprising:
a blade body;
a first end and a second end;
a first tang located at the first end of the blade body;
a second tang located at the second end of the blade body; and
a substantially uniform cutting edge extending from approximately the first end to approximately the second end of the blade body;

(ii) mounting the first tang of the reciprocating saw blade in a chuck of a reciprocating saw and forming with the second tang a first free end of the reciprocating saw blade configured to move through a workpiece, wherein the reciprocating saw blade is mounted to the reciprocating saw only at the first tang;
(iii) driving the first free end of the reciprocating saw blade in a reciprocating motion with the reciprocating saw;
(iv) removing the first tang of the reciprocating saw blade from the chuck of the reciprocating saw;
(v) manually engaging a first portion of the blade comprising the first tang and detaching the first portion of the blade from the blade body to expose a tip region;
(vi) mounting the second tang of the reciprocating saw blade in the chuck of the reciprocating saw and forming with the tip region a second free end of the reciprocating saw blade configured to move through the workpiece, wherein the reciprocating saw blade is mounted to the reciprocating saw only at the second tang; and
(vii) driving the second free end of the reciprocating saw blade in the reciprocating motion with the reciprocating saw.

2. A method as defined in claim 1 , further comprising:
during step (iii), engaging a first region of the cutting edge located proximate to the first tang with the workpiece and wearing the first region of the cutting edge at a faster rate than a second region of the cutting edge located proximate to the second tang; and
during step (vii), engaging the second region of the cutting edge with the workpiece and wearing the second region of the cutting edge.

3. A method as defined in claim 1 , further comprising providing a reciprocating saw blade having a substantially uniform cutting edge defined by grit.

4. A method as defined in claim 3 , wherein the grit includes at least one of carbide and diamond.

5. A method as defined in claim 4 , further comprising imparting substantially the same cutting action to the workpiece during both pull and push strokes of the blade.

6. A method as defined in claim 5 , further comprising:
during step (iii), engaging the cutting edge with the workpiece and applying cutting action primarily during one of the pull or push strokes of the blade; and
during step (vii), engaging the cutting edge with the workpiece and applying cutting action primarily during the other of the pull or push strokes of the blade as compared to step (iii).

7. A method as defined in claim 1 , further comprising, prior to mounting the second tang in the chuck, manually engaging a second portion of the blade and detaching the second portion of the blade from the blade body to expose the second tang.

8. A method comprising:
providing a reciprocating saw blade for use in a reciprocating saw, the reciprocating saw blade comprising:
a blade body;
a first end and a second end;
a first tang located at the first end of the blade body;
a second tang located at the second end of the blade body; and
a cutting edge extending from approximately the first end to approximately the second end of the blade body;

mounting the first tang of the reciprocating saw blade in a chuck of a reciprocating saw and forming with the second tang a first free end of the reciprocating saw blade configured to move through a workpiece, wherein the reciprocating saw blade is mounted to the reciprocating saw only at the first tang;
driving the first free end of the reciprocating saw blade in a reciprocating motion with the reciprocating saw;
removing the first tang of the reciprocating saw blade from the chuck of the reciprocating saw;
manually engaging a first portion of the blade and detaching the first portion of the blade from the blade body to expose the second tang;
mounting the second tang of the reciprocating saw blade in the chuck of the reciprocating saw and forming with the first tang a second free end of the reciprocating saw blade configured to move through the workpiece, wherein the reciprocating saw blade is mounted to the reciprocating saw only at the second tang; and
driving the second free end of the reciprocating saw blade in the reciprocating motion with the reciprocating saw.

9. The method of claim 8 , further comprising:
wherein driving the first free end of the reciprocating saw blade in a reciprocating motion further comprises engaging a first region of the cutting edge located proximate to the first tang with the workpiece and wearing the first region of the cutting edge at a faster rate than a second region of the cutting edge located proximate to the second tang; and
wherein driving the second free end of the reciprocating saw blade in the reciprocating motion further comprises engaging the second region of the cutting edge with the workpiece and wearing the second region of the cutting edge.

10. The method of claim 8 , wherein the cutting edge is defined by grit.

11. The method of claim 10 , wherein the grit comprises at least one of carbide and diamond.

12. The method of claim 8 , further comprising imparting substantially the same cutting action to the workpiece during both pull and push strokes of the blade.

13. The method of claim 12 ,
wherein driving the first free end of the reciprocating saw blade in a reciprocating motion further comprises engaging the cutting edge with the workpiece and applying cutting action primarily during one of the pull or push strokes of the blade; and
wherein driving the second free end of the reciprocating saw blade in the reciprocating motion further comprises engaging the cutting edge with the workpiece and applying cutting action primarily during the other of the pull or push strokes of the blade as compared to step (iii).

14. The method of claim 8 , further comprising manually engaging a second portion of the blade comprising the first tang and detaching the first portion of the blade from the blade body to expose a tip region.

15. A method comprising:
providing a reciprocating saw blade for use in a reciprocating saw, the reciprocating saw blade comprising:
a blade body;
a first end and a second end;
a first tang located at the first end of the blade body;
a second tang located at the second end of the blade body; and
a cutting edge extending from approximately the first end to approximately the second end of the blade body;

mounting the first tang of the reciprocating saw blade in a chuck of a reciprocating saw and forming with the second tang a first free end of the reciprocating saw blade configured to move through a workpiece, wherein the reciprocating saw blade is mounted to the reciprocating saw only at the first tang;
driving the first free end of the reciprocating saw blade in a reciprocating motion with the reciprocating saw;
removing the first tang of the reciprocating saw blade from the chuck of the reciprocating saw;
manually engaging a first portion of the blade comprising the first tang and detaching the first portion of the blade from the blade body to expose a tip region;
mounting the second tang of the reciprocating saw blade in the chuck of the reciprocating saw and forming with the tip region a second free end of the reciprocating saw blade confi

Assignees

• Irwin Ind Tool Co

Inventors

• Kalomeris Charles
• Savarino Matthew

Classifications

• B28D1/127 Primary

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

• B23D61/128

  Sabre saw blades · CPC title

• Y10T83/935

  Plural tooth groups · CPC title

• B23D61/123 Primary

  Details of saw blade body · CPC title

• B23D51/08

  of devices for mounting straight saw blades or other tools · CPC title