US2662240A

US2662240A - Paintbrush attachment

Info

Publication number: US2662240A
Application number: US56438A
Authority: US
Inventors: Robert W Perkins
Original assignee: Individual
Current assignee: Individual
Priority date: 1948-10-25
Filing date: 1948-10-25
Publication date: 1953-12-15
Anticipated expiration: 1970-12-15

Description

15, 1953 R. w. PERKINS PAINTBRUSH ATTACHMENT Filed Oct. 25. 1948 INVENTOR. Roeger W E'RK/MS ATTORNEY Patented Dec. 15, 1953 UNITED STATES PATENT OFFICE PAINTBRUSH ATTACHMENT Robert W. Perkins, Niles, Ohio Application October 25, 1948, Serial No. 56,438 2 claims. (Cl. 24'6i My invention relates to paint brushes, more particularly to paint brushes for use in painting wherein a relatively sharp line of demarcation is required, and the principal object of my invention is to provide new and improved paint brushes of the character described.

My invention may be used in the painting of sash, strips, signs, and other kinds of painting requiring relatively exact lines of demarcation, and my invention accomplishes the intended purpose economically and without the requirement of skill or time-consuming patience.

In the painting of window sash or window dividing strips, for example, by means of a conventional' paint brush, it is difficult to avoid getting paint on the glass without the use of. considerable skill and time. Some painters have masked the. glass, to solve. the problem, but this is" time consuming. Plate-like handshields have been used to avoid the difiiculty, but this has not been found reliable, since paint would run under the shield and onto the glass.

The prior art has made an attempt to solve: the problem by means which prevent the brush bristles from spreading, or by guiding means of various types, but such means have not met with commercial success since they were unreliable, cumbersome, and expensive. My invention provides a reliable, inexpensive solution to the problem through means which even the unskilled person may use successfully.

In the drawing accompanying this specification and forming a part of this application, there is shown, for purposes of illustration, various embodiments which my invention may assume, and in this drawing:

Figure 1 is a perspective view showing a paint brush having a trough-shaped bristle section,

Figure 2 is a perspective view showing an attachment which may be used with a conventional type paint brush,

Figure 3 is a perspective view of a paint brush showing the attachment in place,

Figure 4 is a broken bottom plan view of the paint brush shown in Figure 3, illustrating means for securing the attachment to a brush, and

Figure 5 is a fragmentary sectional view of a window dividing strip, illustrating a use of my invention.

Referring to Figure 1 of the drawing, the paint brush therein disclosed comprises the customary handle I!) and bristle-securing ferrule H. In a conventional type brush, the bristles extend from the ferrule, as shown in dotted lines, so that the bristles, as viewed lengthwise, provide a compob 2 site end formation that is substantially oblong. Such formation makes it difficult to paint window sash, for example, since only a small side portion of the composite bristle structure is used, and because of spreading action of the bristles when painting pressure is applied, it is difficult to prevent. individual bristles from contacting the glass.

I have found that by bunching-up the bristles, particularly so as to form a groove, such as the groove l2, substantially all the bristles maybe used" to paint a window sash, or a dividing strip as shown in Figure 5, since the flexibility of the bristles will permit the center of the groove formation to contact the strip, and the end bristles 13', providing a feathered formation, may be accurately controlled to prevent paint from being applied to the glass. Thus, a substantial portion of the transverse section of the strip may be painted in. one pass.

The brush shown. in. Figure 1v is preferably designed for professional painters who dailyencounter painting problems of the character mentioned. For the average person, who paints occasionally, the purchase of a separate brush only for the painting of window sash, for example, wouldbe prohibitive, and accordingly, my invention includes means whereby the conventional paint brush may be converted inexpensively and effectively;

In Figures 2 through 4, I have shown an. at.- tachment which may be used with a conventional type brush. Referring to Figures 3 and 4, the conventional brush includes a handle H, the usual metal ferrule 15, and bristles extending from the ferrule in formation as shown in dotted lines in Figure 1. 1

The attachment comprises a body portion l6 adapted to be secured to a rigid portion of the brush, as for example, to the ferrule I5, by any suitable means which provide quick and easy attachment and detachment. As an example of suitable attaching means, I have shown arms I'l-l'l and Ill-l8 extending from opposite sides of the body portion It, the arms I! having apertures IQ for receiving the finger portions of the arms H3. The attachment is preferably made of a suitable bendable, form-retaining material, such as a light auge sheet metal, so that the arms lll1 and iii-48 may be wrapped around the ferrule l5, and the finger portions of the arms I8|8 threaded through respective apertures I8 and bent over, as shown in Figure 4, in the manner of a pipe strap.

Extending from the body portion I6 is a troughshaped portion 20, comprising sides 2!, 22 disposed at an angle to each other, and defining a space therebetween which increases from the free end of the portion to its connection with the body I 6.

As seen in Figures 3 and 4, the trough-shaped portion 20 partially embraces the bristles of the brush, and bunches these bristles to provide the groove formation. It will be appreciated that the shape of the groove may be changed by sliding the body one way or the other along the ferrule l5, the connecting arms l1-i1 and l8-I8 yielding sufficiently to permit a user to make an adjustment. A notch 23 may be formed at the intersection of the sides 2|, 22 to assist in the positionment of the bristles and to facilitate flexing of the bristles.

It will be appreciated that the shape of the trough-shaped portion 20 may be varied from the exact shape shown on the drawings. Further, in some instances, the body portion l6 may be dispensed with and the trough-shaped portion may be otherwise connected to the brush, such as by integral formation with the ferrule 15.

The attachment may be made as a metal stamping, and may be formed to provide the trough-shaped portion 20, or the stamping may be unformed, with score lines or ordinary markings indicating the line of bend.

From the foregoing, it wil be apparent to those skilled in the art that I have accomplished at least the principal object of my invention, and it also will be apparent to those skilled in the art that the embodiments herein described may be variously changed and modified, without departing from the spirit of the invention, and that the invention is capable of uses and has advantages not herein specifically described, hence it will be appreciated that the herein disclosed embodiment is illustrative only, and that my invention is not limited thereto.

I claim:

1. An attachment for a conventional paint brush comprising a body formed from sheet material and having oppositely extending arms adapted to be wraped around a rigid portion of a paint brush, one of said arms having a slot and the other having a tongue fitting said slot and bendable after disposition through said slot to hold said body in assembled position on said paint brush, said body also having a generally triangular portion formed with laterally extending sides defining a trough-shaped portion which narrows in a direction toward its free end, said trough-shaped portion being adapted to fit lengthwise over the bristles of the brush with the narow part of the trough adjacent to the end of the bristles, said arms holding said troughshaped portion in position on the brush to press against the paint brush bristles and reshape them to grooved formation as viewed in transverse section.

2. An attachment for a conventional paint brush comprising a body having a generally triangular back portion formed with laterally extending sides defining a trough which narrows in a direction toward a free end, and said body including means for securing it to the handle portion of said brush, said body being of relatively rigid material and in secured position on said brush receiving the brush bristles within its trough with the narrow end of the trough adjacent to the free ends of the bristles, and said body reshaping the bristles in conformance with the outline of said trough so that the bristles are in grooved formation when viewed in transverse section.

ROBERT W. PERKINS.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 271,813 Dischinger Feb. 6, 1883 517,868 Krichbaum Apr. 10, 1894 657,011 Schilz Aug. 28, 1900 960,362 Maendler June 7, 1910 1,319,493 Severance Oct. 21, 1919 1,645,976 Thompson Oct. 18, 1927 1,689,855 Breitenback Oct. 30, 1928 1,915,893 Kinpoitner June 27, 1933 2,136,595 Rogers Nov. 15, 1938 2,159,432 Enns May 23, 1939 2,230,126 Westervelt Jan. 28, 1941 2,467,570 Ward Apr. 19, 1949 2,558,191 Nightingale June 26, 1951 FOREIGN PATENTS Number Country Date 297,269 Great Britain Sept. 20, 1928 870,551 France Dec. 12, 1941