# US 2014/0196237 A1 · Wedge-Shaped Paintbrush

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- Number: US 2014/0196237 A1
- Document ID: US20140196237A1
- Status: Published application
- Kind: A1
- Application number: 13/904,386
- Filed: 2013-05-29
- Published: 2014-07-17
- Earliest claimed: 2013-01-16
- Inventors: James C. Dale
- Web page: https://patentgrep.com/patent/US20140196237A1

## CPC

- A46B 9/026: {where the surface of the brush body or carrier is not in one plane, e.g. not flat (A46B9/005 takes precedence)}
- A46B 9/028: {Bristle profile, the end of the bristle defining a surface other than a single plane or deviating from a simple geometric form, e.g. cylinder, sphere or cone}
- A46B 3/12: specially adapted for paint-brushes
- A46B 2200/202: Applicator paint brush
- A46B: BRUSHES (handles not integral with brushware B25G)

## Abstract

The wedge-shaped paintbrush is a paintbrush with characteristics ideal for trim work. The wedge cross-sectional shape creates a narrow trailing edge, resulting in a fine line for working close to corners and other edges. The wide leading edge acts as a storage location for paint due to its large quantity of bristles. The synergistic result is a paintbrush that has the narrow trailing line of a trim brush, but with the paint-carrying capacity of a larger brush. This allows the novice, who lacks the ability to control the large number of bristles in a larger brush, to effectively cut in a room in a short period of time, minimizing the quantity of times he must reload the brush with paint, or wipe off areas unintentionally painted.

## Claims

### Claim 1

A paint brush comprising a brush head having a substantially trapezoidal cross-sectional shape.

### Claim 2 (depends on 1)

The paint brush of claim 1, the trapezoidal cross-sectional shape having pointed corners.

### Claim 3 (depends on 1)

The paint brush of claim 1, the trapezoidal cross-sectional shape having rounded corners.

### Claim 4 (depends on 1)

The paint brush of claim 1, the trapezoidal cross-sectional shape having two opposite sides of equal length, and two opposite sides of disparate length.

### Claim 5 (depends on 4)

The paint brush of claim 4, the two opposite sides of equal length each of a length greater than double the length of any remaining side of the trapezoidal cross-sectional shape.

### Claim 6 (depends on 4)

The paint brush of claim 4, the shorter of the two sides of disparate length being a curved shape.

### Claim 7 (depends on 4)

The paint brush of claim 4, the two opposite sides of equal length being a curved shape.

### Claim 8 (depends on 1)

The paint brush of claim 1, the trapezoidal cross-sectional shape having four sides, two of the four sides being parallel.

### Claim 9

An apparatus for applying a coating to a surface, comprising:
a. a brush head having a leading edge and a trailing edge, the leading edge being of greater length than the trailing edge.

### Claim 10 (depends on 9)

The apparatus for applying a coating to a surface of claim 9, the leading edge and the trailing edge being connected by two intermediate edges, the two intermediate edges of substantially equal length.

### Claim 11 (depends on 10)

The apparatus for applying a coating to a surface of claim 10,
a. wherein there is a first angle between each of the two intermediate edges and the leading edge, and a second angle between the two intermediate edges, the second angle being greater than the first angle.

### Claim 12 (depends on 10)

The apparatus for applying a coating to a surface of claim 10, further comprising
a. a brush handle affixed to the brush head; and
b. the leading edge, trailing edge, and intermediate edges of the brush head forming a bottom surface, the bottom surface forming the shape of a trapezoid.

### Claim 13 (depends on 10)

The apparatus for applying a coating to a surface of claim 10, further comprising:
a. a brush handle affixed to the brush head; and
b. the leading edge, trailing edge, and intermediate edges of the brush head forming a bottom surface, the bottom surface having a deviation angle between a surface normal of the bottom surface and a centerline of the brush handle, the deviation angle being 30 degrees.

### Claim 14

A paint brush comprising:
a. a handle
b. a ferrule
c. a brush head held to the handle by the ferrule, the brush head having a narrow side and a broad side.

### Claim 15 (depends on 14)

The paint brush of claim 14, the brush head having a cross-sectional shape of a triangle, the triangle having a first side, a second side, and a third side, the first side and second side of substantially equal length, the third side of a length lesser than that of either the first side or the second side.

### Claim 16 (depends on 14)

The paint brush of claim 14, the vertex of the first side and the second side forming a point.

### Claim 17 (depends on 14)

The paint brush of claim 14, where the first side and the second side are connected by a curved line of a length lesser than that of the third side.

### Claim 18 (depends on 14)

The paint brush of claim 14, where the first side and the second side are connected by a straight line of a length lesser than that of the third side.

### Claim 19 (depends on 14)

The paint brush of claim 14, the brush head having a cross-sectional shape of a trapezoid, the trapezoid having four sides, of the four sides two opposite sides being of equal length and two opposite sides of disparate length, the two sides of disparate length constituting the narrow side and the broad side.

### Claim 20 (depends on 15)

The paint brush of claim 15, the brush head comprising a ferrule and a multiplicity of filaments.