US2753582A

US2753582A - Sponge brush

Info

Publication number: US2753582A
Application number: US285125A
Authority: US
Inventors: Chester P Fredericks
Original assignee: Individual
Current assignee: Individual
Priority date: 1952-04-30
Filing date: 1952-04-30
Publication date: 1956-07-10
Anticipated expiration: 1973-07-10

Description

July 10, 1956 c. P. FREDERICKS SPONGEI BRUSH Filed April 30, 1952 I N VEN TOR.

ATTDRN EYS This invention relates to brushes, and in particular a brush in which the bristles thereof are replaced with a web of cellulose sponge shaped to correspond with the bristles of a brush and secured in a back from which a handle extends.

The purpose of this invention is to provide a substitute for the bristles of a brush.

In some types of brushes and particularly brushes used in the plastering trade bristles are being replaced with nylon and as the nylon bristles have no absorptive characteristics the brushes do not hold water. In brushing a finish or white coat of a plaster wall it is necessary that the brush carry water and for this reason brushes with nylon bristles are not satisfactory. With this thought in mind this invention contemplates a brush in which the bristles are replaced with a cellulose sponge and with the cellulose sponge shaped to correspond with the bristles of a brush the device is adapted for brushing a recently applied white coat to a plaster wall and also for applying different types of water paint such as calcimining and whitewashing and it is also adapted for use in applying emulsied synthetic paints, disinfectants, liquid tar products, wallpaper paste and waterproofing material to concrete and the like.

The object of this invention is, therefore, to provide means for mounting a cellulose sponge in a back with a handle extended therefrom whereby the sponge replaces the bristles of a brush.

Another object of the invention is to provide a brush that carries a comparatively large amount of water.

A further object of the invention is to provide a sponge brush which is of a simple and economical construction.

With these and other objects and advantages in View the invention embodies a back having spaced longitudinally disposed grooves extended therethrough with a handle extended from the side opposite to that in which the grooves are formed and a sponge web having tongues ex tended into the grooves of the back.

Other features and advantages of the invention will appear from the following description taken in connection with the drawing, wherein:

Figure l is an exploded view showing an end elevation of the improved brush with the sponge web separated from the back and handle.

Figure 2 is a perspective view illustrating the design and arrangement of the brush.

Figure 3 is a cross section taken on line 3 3 of Fig. 2 showing the parts of the brush assembled.

Figure 4 is a longitudinal section taken on line 4 4 of Fig. 1 showing the back and handle with the sponge web omitted.

Referring now to the drawings wherein like reference characters denote corresponding parts the improved sponge brush of this invention includes a web of cellulose sponge or other suitable material, a back 11 having spaced apart flanges extended therefrom and there is also provided a tongue 24 which is arranged between the flanges. The flanges and tongue coact to define therebetween spaced parallel longitudinally disposed grooves ed

rStates Patent O

12 and 13 in which

tongues

14 and 15 of the sponge 10 are positioned with the parts assembled, and a handle 16 extended from the side of the back opposite to that in which the

grooves

12 and 13 are positioned.

In the design shown the sponge 10 is provided with flat sides having arcuate outer portions 17 and 18 that taper to a point 19, and the

tongues

14 and 15, which eX- tend from the opposite edge are provided with tapering inner surfaces 20 and 21, respectively which are inclined to correspond with

surfaces

22 and 23 of the tongue 24 that is positioned between the

slots

12 and 13 of the back 11. The tongue 24 is positioned to extend into a slot 25 in the sponge 10, as illustrated in Fig. 3.

With the parts formed in this manner the tongues of the sponge 10 are secured in the grooves of the back with water proof glue or other suitable adhesive and the back and handle are formed of a suitable plastic. It will be understood, however, that the back and handle may be formed of wood or other suitable material and a sponge may be secured in the back by other suitable means.

The

tongues

14 and 15 extend into the

grooves

12 and 13 and the outer surfaces of the tongues are held by flanges 26 and 27 which extend from the edges of the back 11.

The cellulose sponge is capable of carrying a greater quantity of water than the bristles of a brush and not being subject to deterioration by lime water the life thereof is indefinite.

Brushes of this type may be formed. of different sizes such as from one-fourth of an inch in width to three feet in width and the thickness of the sponge material may be varied accordingly.

It will also be understood that other modications within the scope of the appended claim may be made in the brush without departing from the spirit of the invention.

What is claimed is:

In a cellulose sponge brush, the combination which comprises a handle extended from a back, said back being substantially rectangular-shape in cross section and being positioned in a plane substantially perpendicular to the handle, a centrally positioned longitudinally disposed tongue extended from the surface of the back opposite to that from which the handle extends, the side surfaces of said tongue being inclined outwardly from the intersection of the tongue with the back to a greater width at the extended end of the tongue, longitudinally disposed flanges extended from the sides of the back, spaced from and parallel to the tongue,I said tongue and said flanges forming open ended slots, said anges having arcuate outer surfaces merging into correspondingly shaped surfaces of said back, and a longitudinally disposed cellulose sponge web having parallel side surfaces tapering to a point in a plane extended through the longitudinal center of the back and handle and said web having tongues positioned between the tongue extended from the center of the back and the flanges extended from the edges thereof, said tongues extended from the web being shaped to correspond with the cross sectional areas between the tongue of the back and anges at the edges thereof.

References Cited in the file of this patent UNITED STATES PATENTS 222,166 Wadsworth et a1. Dec. 2, 1879 701,278 Adcock lune 3, 1902 868,609 Martin Oct. 15, 1907 1,645,479 Golden Oct. 11, 1927 2,210,967 Vaughn Aug. 13, 1940 2,286,944 Altland June 16, 1942 y2,517,213 Kautenberg Aug. 1, 1950