# US 2021/0242670 A1 · Cut resistant knife

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- Number: US 2021/0242670 A1
- Document ID: US20210242670A1
- Status: Published application
- Kind: A1
- Application number: 17/162,021
- Filed: 2021-01-29
- Published: 2021-08-05
- Earliest claimed: 2020-01-30
- Assignees: ButlerBilt L.L.C.
- Applicants: ButlerBilt L.L.C.
- Inventors: Michael Butler; John Lambert
- Web page: https://patentgrep.com/patent/US20210242670A1

## CPC

- H02G 1/1217: {making a longitudinal cut}
- H02G 1/1236: {Features relating to cutting elements}
- H02G: INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES

## Abstract

A cut resistant knife, and a method for stripping jacket or sheathing off of a cable, are described.

## Claims

### Claim 1

A cut resistant knife comprising:
at least one handle;
a guard member connected to the at least one handle, wherein the guard member comprises a top guard and a front guard extending from a first end to a second end, defining a slot between the top guard and the front guard, wherein the at least one handle is connected to the first end; and
a blade connected to the guard member and facing the front guard, wherein the blade is angled so as to define a sharp edge oriented away from the top guard, and wherein a cutting aperture is defined between the front guard and the blade.

### Claim 2 (depends on 1)

The cut resistant knife of claim 1, wherein the at least one handle is removable from the guard member.

### Claim 3 (depends on 1)

The cut resistant knife of claim 1, wherein the at least one handle comprises knurls or other grip-enhancing features.

### Claim 4 (depends on 1)

The cut resistant knife of claim 1, further comprising a second handle attached to the second end.

### Claim 5 (depends on 4)

The cut resistant knife of claim 4, wherein the second handle is removable.

### Claim 6 (depends on 4)

The cut resistant knife of claim 4, wherein the second handle comprises knurls or other grip-enhancing features.

### Claim 7 (depends on 1)

The cut resistant knife of claim 1, wherein the guard member defines a front side and a rear side, and the slot extends from the front side to the rear side.

### Claim 8 (depends on 1)

The cut resistant knife of claim 1, wherein the top guard is curved.

### Claim 9

A cut resistant knife comprising:
a first handle and a second handle;
a guard member extending between the first handle and the second handle;
a top guard extending from a first end of the guard member to a second end of the guard member;
a front guard extending from the first end to the second end, wherein a slot is defined between the top guard and the front guard; and
a blade extending from the first end to the second end, wherein the blade defines a sharp edge facing the front guard, and wherein a cutting aperture is defined between the front guard and the blade.

### Claim 10 (depends on 9)

The cut resistant knife of claim 9, wherein the top guard is curved.

### Claim 11 (depends on 9)

The cut resistant knife of claim 9, wherein the first handle and/or the second handle comprises knurls or other grip-enhancing features.

### Claim 12 (depends on 9)

The cut resistant knife of claim 9, wherein the first handle and/or the second handle is removable from the guard member.

### Claim 13 (depends on 9)

The cut resistant knife of claim 9, wherein the front guard and the blade are disposed in a substantially parallel manner

### Claim 14 (depends on 9)

The cut resistant knife of claim 9, wherein the front guard and the blade are disposed in a substantially planar manner

### Claim 15 (depends on 9)

The cut resistant knife of claim 9, wherein the slot is sized to receive jacket or sheathing stripped from a cable.

### Claim 16 (depends on 9)

The cut resistant knife of claim 9, wherein the cutting aperture is sized to receive jacket or sheathing stripped from a cable.

### Claim 17 (depends on 9)

The cut resistant knife of claim 9, wherein the guard member comprises aluminum or steel.

### Claim 18 (depends on 9)

The cut resistant knife of claim 9, wherein the blade comprises A2 grade tool steel that has been double heat treated.

### Claim 19 (depends on 9)

The cut resistant knife of claim 9, wherein the front guard and the blade define a plane, and the sharp edge of the blade is oriented about 1/16th of an inch offset from the plane.

### Claim 20

A method for stripping jacket off of a cable, the method comprising pulling or pushing a cut resistant knife along a surface of a cable having jacket thereon to strip the jacket off of the cable with a blade of the cut resistant knife, wherein access to the blade is restricted by a guard member on the cut resistant knife.