US2202292A - Brush - Google Patents

Description

May 28 1940l E. T. HOWARD Y 2,202Q292 BRUSH Filed June 9, 1934 EDWARD T HOWARD',

Patented May 28, 1940 UNITED ySTATES PATENT OFFICE BRUSH Edward T. Howard, Cleveland, Ohio Application June 9, 1934, serial No. 729,767'

2 claims. (ci. 15-193) This invention relates to a paint brush. Heretofore, brushesy of this character have had a tuft of bristles, which has been set into a socket in a handle and held therein by a ferrule. method is objectionable because it does not always result in an anchorage of the desired rigidity and because there are too many operations that must be performed to make a completed article.

An object of my invention is to make a brush in which it is not necessary to utilize a ferrule and in which the assembly of the tuft in the handle may be performed in a single operation.

Referring now to the drawing, Figs. 1, 2 and 3 are side elevations of tufts 'of bristles having different forms'of binders; Figs. 4' and 5 are side elevations partly in section of brushes completely assembled and illustrating the binders which are shown in Figs. 1 and 2, and Fig. 6 is a sectional view through a mouldwith a tuft positioned therein in preparation for receiving the mouldable material of which the handle is made.

I carry out my invention by making atuft I0 in the usual way and then by forming and moulding the handle around it. To carry out my purpose, the material of which the handle may be made can be a substance, such as sawdust rubber, or a phenolic'conensate, lwhich is capable.

of being deformed under temperature and/or pressure. To mould the handle Il around the tuft, I utilize tw coacting mould sections I2 and I3, each of which has a cavity I4 therein and which are so arranged that when they are brought together under the proper conditions of- This tie through the butt end of the tuft.

To effect a tight joint between the tuft and the material of which the handle is made, the wire e or band 2li-which is normally used for binding the bristles into tuft form may be provided with projections that are embedded in the mouldable material during the forming operation.

An advantage of the method which I have described, as well as the brushes, which result therefrom is that the tuft is firmly embedded in the handle socket without the need for an enclosing ferrule or other wedge shaped retainer.

l Moreover, the method materially reduces the cost of production and assures uniformity in the finished structure.

I claim:

1. A paint brush having a tuft of bristles and a hand grip handle 'extending in the same general direction as the bristles, a fiat strip binder surrounding the bristles and having openings extending therethrough, the handle comprising a one-piece molded member, the material of which is embedded around the binder and through the openings therein and into interstices between the bristles.

2. A brush having a tuft of bristles, and a hand-grip handle. made of thermoplastic material, a'binder surrounding the bristles and being of a material which is impervious to the thermoplastic material, the binder having provisions for the passageof thermoplastic material from the outside thereof inwardly, the handle being made in one piece with the material thereof embracing the binder and passing inwardly beyond it into the interstices of .the bristles.

EDWARD T. HOWARD.

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