US2056447A - Tooth brush - Google Patents

Description

Oct. 6, 1936. J, FELL 2,056,447

TOOTH BRUSH Filed June 22, 1934 mli giw mu m l Patented Oct. 6, 1936 "room BRUSH Joseph G. Fell. Orange, N. 3.

Application June 22,, 1934, Serial No. 531,95? ioiaim. '(ei. 15-167) The present invention relates to tooth brushes, and more particularly to a brush designed for the cleaning of the inside surfaces of the teeth.

One object of the invention is to provide such a brush having a handle which will enable the user to brush the inside surfaces of the teeth easily and without discomfort, and without the necessity of placing the hand and arm in a position inconvenient for the brushing operation.

Another object is to provide such a brush having a brushing surface designed with respect to the handle to reach and effectively clean all of the inside portions of the teeth.

In the accompanying drawing:

Figure 1 is a perspective view of a tooth brush constructed in accordance with this invention.

Figure 2 is an elevation of the same. Figure 3 is a plan view. Figure 4 is an elevation of a modification intended for use by left-handed persons.

Describing the drawing more particularly, the numeral 6 indicates the head of the brush, and l the handle thereof. The handle has a neck portion 8 reduced in width and integrally connecting 5 the handle 1 and head 8. Bristles 9 are suitably mounted in the head 8 and project from one side of the head. The central tufts are longer than those at the ends and sides in order to provide a convex brushing surface l0.

For the sake of clarity of the description, the surface of the brush from which the bristles extend will hereafter be called the front surface. Hence it may be said that the bristles extend forwardly from the front of the head 8.

In order to allow the user of the brush to conveniently reach the inside surfaces of the teeth with the brushing surface 18, the handle 1 is arranged with respect to the head 6 as follows:

The handle is twisted on its longiudinal axis at 40 the neck 8 in a clockwise direction (Figs. 1 to 3) with relation to the head, thusplacing the handle in a transverse plane at an angle to that of the head- 8, and placing one edge ll of the handle in a position forwardly with respect to the body of 5 the handle. The handle is also bent at the neck 8, edgewise in the direction of the edge II, and consequently forwardly of the front surface of the head, but without substantially (31191181 8 the transverse plane of the twisted handle I.

- by the twist of the connection and forwardly of The result of this arrangement is that the handle I! is twisted with relation tothe head 6, and is bent to extend forwardly and to one side of the head. With the front surface turned outwardly from the user, as in brushing the backs 5 of the front teeth, the handle, besides being twisted, extends outwardly from the head. This arrangement allows all of the inside surfaces of all the teeth to be reached by the brushing surhandle will extend out of the month without causing discomfort to the lips of the user and without necessitating his placing his hand and arm in an awkward position.

In Figure 4 a modification intended for the use 15 of left-handed persons is illustrated. In the modification the handle I! is twisted at the neck i3 in a counter-clockwise direction with relation to the head l4, throwing the edge l5 to the front. The handle I 2 is also bent edgewise in the 20 direction of the edge l5 and consequently forwardly of the head 14. It will beseen that in this modification, the arrangement of the handle is the reverse of that shown in Figures 1-3. The modified form is used with the same effect when 25 held in the left hand, as the other form when held in the right hand.

From the foregoing, it is thought that the construction, operation and many advantages of the those skilled in the art without further description. and it will be understood that various changes in'the size, shape, proportion and minor details of construction may be resorted to without departing from the spirit or sacrificing any of the advantages of the invention.

What I claim, is:

A tooth brush comprising a head having bristles projecting from one side thereof, and a handle having a connection with one end of the head, 40 said connection having a twist that holds the handle in a plane that is less than a right angle to the plane of the head and said handle bodily extending in a lengthwise direction at an angle to the head and in the plane in whichit is held the bristle carrying side of the said head.

' JOSEPH G. FELL.

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