# US 2014/0191562 A1 · Mining and demolition tool

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- Number: US 2014/0191562 A1
- Document ID: US20140191562A1
- Status: Published application
- Kind: A1
- Application number: 14/136,812
- Filed: 2013-12-20
- Published: 2014-07-10
- Earliest claimed: 2008-11-05
- Inventors: Gregory Greenspan; Alex Greenspan; Gene Alter
- Web page: https://patentgrep.com/patent/US20140191562A1

## CPC

- E21C 35/18: Mining picks; Holders therefor (planing knives E21C27/44)
- E02F 3/20: with tools that only loosen the material {, i.e. mill-type wheels}
- E02F 9/2866: {for rotating digging elements (for milling machines B28D1/186; for mining machines E21C35/18)}
- E21C 35/183: with inserts or layers of wear-resisting material {(drill bits with wear-resistant parts E21B10/46)}
- E21C 35/1837: {characterised by the shape}
- E21C: MINING OR QUARRYING
- E02F: DREDGING; SOIL-SHIFTING (winning peat E21C49/00)

## Abstract

Apparatus, methods, and other embodiments associated with a mining and demolition tool are described herein. In an embodiment, a mining bit tool includes a mining and demolition bit tool base and a mining bit tool tip coupled to the mining bit tool base. The base includes a tapered portion and a stem. The tapered portion includes a first end and a second end, with a surface tapering from the first end to the second end. There are at least two flutes positioned along the tapered surface, where a first flute is positioned at an angle relative to a longitudinal axis passing through the center of the mining bit tool and a second flute is positioned to cross a path of the first flute. The stem extends from the first end of the tapered portion, and the tip is coupled to the second end of the tapered portion.

## Claims

### Claim 1

A bit tool comprising:
a head portion having a first end and a second end;
a tapered surface extending from the first end to the second end;
a plurality of grooves in the tapered surface, wherein each of the grooves is positioned at an angle other than parallel to a longitudinal axis passing through a center of the bit tool; and
wherein consecutive grooves are separated by portions of the tapered surface.

### Claim 2 (depends on 1)

The bit tool of claim 1, wherein a cross-section of each of the grooves is curved.

### Claim 3 (depends on 1)

The bit tool of claim 1 further comprising a tool tip coupled to the second end of the head portion.

### Claim 4 (depends on 3)

The bit tool of claim 3, wherein the tool tip includes a first angular groove forming a first cutting edge and a second annular groove forming a second cutting edge.

### Claim 5 (depends on 3)

The bit tool of claim 3, wherein the tool tip is coupled to the head portion by a brazing process.

### Claim 6 (depends on 3)

The bit tool of claim 3, where the tool tip further includes a cavity.

### Claim 7 (depends on 1)

The mining and demolition bit tool of claim 1 further comprising a post extending from the second end of the tapered portion.

### Claim 8 (depends on 7)

The mining and demolition bit tool of claim 7, where the tool tip is coupled to the head portion by an engagement of the post with the cavity.

### Claim 9 (depends on 1)

The bit tool of claim 1, wherein the bit tool includes at least 8 flutes.

### Claim 10 (depends on 1)

The bit tool of claim 1 further comprising a stem connected to the first end of the head portion.

### Claim 11 (depends on 1)

The bit tool of claim 1, where the groove is helical or spiral in shape.

### Claim 12 (depends on 1)

The bit tool of claim 1, where the groove includes at least one cutting edge.

### Claim 13 (depends on 1)

The bit tool of claim 1, further comprising a stem connected to the first end of the head portion.

### Claim 14 (depends on 13)

The bit tool of claim 13, wherein the bit tool is rotatably secured to a drum by way of a holder by the engagement of a retention clip with an annular groove in the stem.