# US 2021/0260742 A1 · Breaker hammer for breaking hard objects

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- Number: US 2021/0260742 A1
- Document ID: US20210260742A1
- Status: Published application
- Kind: A1
- Application number: 16/833,838
- Filed: 2020-03-30
- Published: 2021-08-26
- Earliest claimed: 2020-02-21
- Assignees: Lucky-Brand Industrial Co., Ltd.
- Applicants: Lucky-Brand Industrial Co., Ltd.
- Inventors: Ying-Chieh CHEN
- Web page: https://patentgrep.com/patent/US20210260742A1

## CPC

- B25D 1/14: having plural striking faces
- B25D: PERCUSSIVE TOOLS {(percussive machines for forging B21J; hand-held drilling machines, in general B23B45/00, for wood B27C3/08; drilling machines, used for mining or quarrying, with reciprocating tool which is turned intermittently when out of contact with the working face E21B1/00)}

## Abstract

A breaker hammer for breaking hard objects includes one or multiple striking faces. One striking face has a breaking portion inside. The breaking portion occupies about 80% of the area of the striking face. The breaking portion has a plurality of striking areas protruding from the striking face, thereby effectively striking and breaking hard objects.

## Claims

### Claim 1

A breaker hammer for breaking hard objects, comprising at least one striking face, one said striking face comprising a breaking portion inside, said breaking portion occupying about 80% of the area of the respective said striking face, said breaking portion comprising at least two striking areas protruding from the respective said striking face.

### Claim 2 (depends on 1)

The breaker hammer as claimed in claim 1, wherein said breaking portion is a concentric circle area retracted a predetermined distance from a ring edge of the respective said striking face.

### Claim 3 (depends on 1)

The breaker hammer as claimed in claim 1, wherein each said striking area comprises a top, and an extension spirally and outwardly extending from said top.

### Claim 4 (depends on 3)

The breaker hammer as claimed in claim 3, wherein the said tops of said at least two striking areas are located near the center of the respective said striking face.

### Claim 5 (depends on 1)

The breaker hammer as claimed in claim 1, wherein said at least two striking areas are equidistantly symmetrically located near the center of the respective said striking face.

### Claim 6 (depends on 1)

The breaker hammer as claimed in claim 1, wherein a gap is formed between two adjacent said striking areas.

### Claim 7 (depends on 1)

The breaker hammer as claimed in claim 1, wherein said at least two striking areas are spirally arranged on said breaking portion.