US2528992A - Toothbrush - Google Patents

Description

R. E. BARR Nov. 7, 1950 TooTHBRUsH Filed Sepf- 21' 1946 I I Wwey W za Www Patented Nov. 7, 1950 UNITED STATES PATENT OFFICE TOOTHBRUSH Roy E. Barr, Childress, Tex.

Application September 21, 1946, Serial No. 698,578

3 Claims;

This invention relates to improvements in toothbrushes.

An object of the invention is to provide an improved toothbrush formed with individual bristle arrangements at its opposite ends for respectively brushing the front teeth and gums, and the rear or back teeth and gums.

Another object of the invention is to provide an improved toothbrush formed with a centrally disposed flat bar having a fork extending outwardly therefrom at right angles to the plane of said handle, upon which transversely extending bristle supporting heads are mounted with the bristle tufts extending inwardly in opposed position to contact the surfaces of the front teeth when being brushed, and to reach every crevice and space between 'adjacent teeth and the gums.

A further object of the invention is to provide an improved toothbrush having a centrally disposed flat bar formed with V-shaped opposed bristle tuft supporting arms on one end, and a U-shap-ed arm on the opposite end of said bar formed with longitudinally extending heads for supporting bristle tufts in opposed relation, together with means for supporting centrally disposed upwardly extending bristle tufts for brushing the rear or back teeth and gums, whereby the oppositely disposed bristles will brush the inside and outside surfaces of the rear teeth, while the centrally disposed bristles will brush the outer or chewing surfaces of said teeth.

Another object of the invention is to provide an improved toothbrush having differently formed brush heads on its opposite ends for effectively brushing and massaging the front and back teeth and gums.

Another object of the invention is to provide an improved multiple head toothbrush which will be highly efficient in operation and relatively inexpensive to manufacture and produce.

Other objects will appear as the description proceeds.

In the accompanying drawings which form a part of this application,

Figure 1 is a perspective View of the improved toothbrush;

Figure 2 is a view taken on the line 2-2 of Figure 1, and

Figure 3 is a side elevation of the V-supported bristle heads for brushing the front teeth and gums.

Like characters of reference are used throughout the following specification and the accompanying drawings to designate corresponding parts.

the outsides of said tufts than at the inner sidesl thereof. It is the purpose of these tufts to be placed over the front teeth and worked back and forth, thereby efficiently Cleaning the teeth and massaging the gums. i

The brush arrangement onthe opposite end of the handle l co-mprisesthe transvers'ely extending U-shaped arm 8 which supports thelongitudinally extending brush heads 9 and ll! 'on its opposite ends, which in turn support the inwardly directed bristle tufts ll and [2 respectively, and the bristle tufts |3 secured in the base of the arm 8 to extend upwardly between the adjacent ends of the bristle tufts II and |2. It is the purpose 'of this brush to effectively and eificiently cleanse the back teeth and to massage the gums, simultaneously brushing the opposite sides of said teeth and also the chewing surfaces thereof.

From the foregoing description, it will be apparent that there has been provided a highly efficient form of toothbrush which will be relatively inexpensive to manufacture and produce.

While the preferred embodiment of the instant invention has been illustrated and described, it will be understood that it is not intended to limit the scope of the invention thereto, as many minor changes in detail of construction may be resorted to Without departure from the spirit of the invention.-

Having thus described my invention what I claim as new and desire to secure by Letters Patent of the United States is:

1. A toothbrush comprising an elongated handie forming member, brush means for the anterior teeth formed integrally with the end of said member, said brush means including a pair of coplanar relatively diverging arms formed integrally with one end of said member, the plane defined by said arms extending longitudinally of said member, bristle supporting heads attached to the ends of each of said arms, the inner surfaces of said heads diverging outwardly relative to each other longitudinally of the handle member, bristle tufts supported by the inner surfaces of said heads, the free ends of the bristles on each of said heads defining a surface which is parallel to the inner surface of the head to which the bristles are attached, the bristles extending from the inner edge of each of said heads terminally contacting each other.

2. A toothbrush comprising an elongated handle forming member, brush means for the anterior teeth formed integrally with the end of said member, said brush means including a, pair of coplanarv relatively diverging arms formed integrally with one end of said member, the plane -defined by said arms extending longitudinally of said member, bristle supporting heads attached to the ends of each of said arms, the inner surfaces of said heads diverging outwardly relative to each other longitudinally of the handle member, bristle tufts supported by the inner surfaces of said heads, the free ends of the bristles on each of said heads defining a surface which is parallel to the inner surface of the head to which the bristles are attached, the bristles extending from the inner edge of each of vsaid heads terminally contacting each other, said arms being disposed on opposite sides of the longitudinal axis'of said member.

3. A toothbrush comprising an elongated handle forming member, brush means for the anterior teeth formed integrally with the end of said member, said brush means including .a pair of coplanar relatively diverging arms formed integrally with one end of said member, the

planeV defined by said arms extending longitudinally of said member, bristle supporting heads attached to the ends of each of said arms, the inner surfaces of said heads diverging outwardly relative to each other longitudinally of the handle member, bristle tufts supported by the inner surfaces. of said heads, the free ends of the bristles,

on each of said heads defining a surface which is parallel to the inner surface of the head to which the bristles are attached, the bristles extending from the inner edge of each of said heads terminally contacting each other, said arms being disposed on opposite sides of the longitudinal axis of said member, the bisector of the angle between said arms lying at an angle to the longitudinal axis of said member.

ROY E. BARR.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 569,870 Hamilton Oct. 20, 1896 715,263 Haussmann Dec. 9, 1902 887,181 Barnes May 12, 1908 1,025,751 Kretzschmar May 7, 1912 1,118,156 Schoepe Nov. 24, 1914 1,189,505 Stockton July 4, 1916 1,679,946 Ruff Aug. 7, 1928 1,707,118 Goldberg Mar. 26, 1929 l.,722,131 Fitzgerald July 23, 1929 D. 98,042 Rudof Dec. 31, 1935 2,093,383 Rudof et al Sept. 14, 1937 2,237,694 Altstadt Apr. 8, 1941 i FOREIGN PATENTS Number Country Date 17,726 Switzerland Sept. 10, 1898 359,325 France Jan. 17, 1906 588,348 France May 5,, 1925 247,005 Great Britain Feb. 11, 1926 21,184 Australia 1935

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