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Publication numberUS2304319 A
Publication typeGrant
Publication dateDec 8, 1942
Filing dateMay 31, 1940
Priority dateMay 31, 1940
Publication numberUS 2304319 A, US 2304319A, US-A-2304319, US2304319 A, US2304319A
InventorsAuguste L Saltzman
Original AssigneeBristol Myers Co
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Toothbrush
US 2304319 A
Abstract  available in
Images(1)
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Claims  available in
Description  (OCR text may contain errors)

Dec. 1942- A. L. SALTZMAN I 2,304,319

TOOTHBRUSH Filed May 31, 1940 INVENTOR. Al/Gl/Sff L. 8402M ATTORNEY;

Patented Dec. 8, 1942.

'roo'rmnwsu Auguste L. Saltzman, Orange, N. 1., assignor to Bristol-Myers Company, New York, N. Y., a corporation of Delaware Application May 31, 1940, Serial No. 338,011

3 Claims.

The invention relates to toothbrushes; and particularly to improvements in the handles to such brushes.

An object of the invention is to provide a handie having gripping portions which are so disposed with relation to the head of the brush as to facilitate manipulation of the brush by either hand in massaging the gums. and in brushing downwardly over the upper teeth and upwardly over the lower teeth.

. Another object is to provide toothbrush in which gripping surfaces on the handle are so disposed with reference to the disposition of the head of the brush and the working face of the bristlesas to present the bristles correctly to the surfaces to be brushed, with a natural, un-

strained position of the fingers and wrist, irre- ,spective of whether the brush is held in the right hand Orin the lefthand.

Another object is to provide'a toothbrush handle which is so constructed as to permit rotary movement of the handle about its longitudinal axis to be imparted by the thumb and fingers with little or no wrist action.

A particular feature of my brush resides in the symmetrical arrangement around the longi-- tudinal axis of the handle, of more than two relatively broad gripping surfaces disposed at acute angles to the plane of the working surface of the brush.

The accompanying drawing illustrates certain typical embodiments of the invention. Figs. 1 and 2 are side and back views, respectively, of a The head I0 is of substantially flat, elongatedform, 'and carries a plurality of transversely projecting bristle tufts I2. The flat sides of the head, or the central plane which is parallel to one or the other of the sides (1. e., at right angles to the plane of the drawing designated Fig. 1) will be referred to herein, and in the appended claims, as the plane of the head. The. ends of the tufts may lie ina generally flat plane, as so shown, or in a curved or irregular plane, and reference to the plane of the working face of the brush is to be understood as denoting a flat plane which contains the ends of the tufts or which comes the closest to containing the ends of all the tufts.

The edges of the head 10 may fiare outwardly toward the right as viewed in Fig. 2, to the points l3, where they taper inwardly to form a neck H. The axis of the handle II is substantially straight, and the handle has a gripping portion l-5 provided with four gripping surfaces I6 symmetrically arranged around the longitudinal axis of the handle in theform of a diamond or square prism. The surfaces It are disposed at acute anlcs to the plane of the head It or to the plane of the working face of the brush. In my preferred construction each of these gripping surfaces is disposed at approximately 45 to the plane of the working face. Depressions ll of arcuate form, or other gripping means, assist in insuring a comfortable, sure grip on the handle. The gripping surfaces ii are of substantial area, and are co-extensive in the longitudinal direction so that the brush can be'rotated back and forth around the longitudinal axis by the action of the thumb and fingers with little or no wrist-action. The centers of the gripping surfaces l6 are equidistant from the head l0, so that, upon the aforesaidrotary movement, the thumb and fingers successively grip different sides of the prism without dimculty and without substantial change in longitudinal position of the grip.

The end' l8 of the handle may be of any suit- 'able configuration, and, as shown, is of square cross section, tapering down from the edge of the grip ii at first sharply, and then more gradually, terminating in a rounded tip i9. l

, The brush shown in Figs. 5 and 6 is similar to that which has been described with reference to Figs. 1 to 4, inclusive, having a gripping portion 20 which is the same as the grip ii of the first embodiment, except that the depressions I! are omitted. The end 2| of the handle also is of modified construction, being of flattened form and arranged substantially in the plane of the head Ill. The form of the end of th handle is, of course, subject to considerable variation while retaining the principal objects and advantages of my invention.

In the form of handle shown in Fig. 7, the gripping portion is of frusto-pyramidal form and tapers into the end 23 in a manner to provide naturally to the left side of the teeth, or 90 in the opposite direction so as to present the bristles naturally to the right side of the teeth. By a simple manipulation with the thumb and fingers, and without substantial wrist action, the brush can be turned back and forth between either of these positions and .that shown in Fig. 7 so as to brush upwardly over the lower teeth on either side and downwardly over the upper teeth, and

to partially rotate the brush for massaging the gums. The same action can be performed with the left hand, so the brush is equally well suited to brushing all of the teeth with either hand. The edges of the prismatic gripping portion assist in the rotary motion about the handle axis, and the flat sides serve, in effect, as stops to bring the working face into proper position for the beginning and end of each stroke. This is true whether the brush is rotated by finger action or by wrist action. v

The terms and expressions which Ihave employed are used as terms of description and not of limitation, and I have no intention, in the use of such terms and expressions, of excluding any equivalents of the features shown and described or portions thereof; but recognize that various modifications are possible within the scope of the invention claimed.

I claim:

1. A toothbrush having a substantially flat, elongated head and a substantially straight handie, the head and handle being connected end to end and having a common longitudinal axis, the head having bristle tufts, the ends of the tufts providing a working face, and the handle having a gripping section consisting of four gripping portions symmetrically arranged around said axis I in a common transverse section, all of the gripping portions in said common transverse section being arranged in planes which make acute angles with said working face, the width of each gripping portion being substantially equal to the full width of the handle whereby they present broad surfaces serving as stops to bring the working face into proper position for the beginning and end of each rotation stroke about said axis.

2. A toothbrush having a substantially flat, elongated head and an elongated handle, the head and handle being connected end to end, the handle having a four-sided gripping portion which is substantially square in cross section with four sharply-defined comers, each of the sides of the square being disposed at an angle of approximately with respect to the plane of the head, and each side of the gripping portion being of substantial width and meeting adjacent gripping portions at an angle of substantially whereby the gripping portions serve as stops to bring the head of the brush into proper position for the beginning and end of each rotative stroke. I

3. A toothbrush having a substantially fiat, elongated head and an elongated handle, the

head and handle being connected end to end,

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2513208 *Aug 13, 1948Jun 27, 1950Rogers Laura ACuticle pusher
US2690579 *Jan 12, 1951Oct 5, 1954Robert G BackstromToothbrush
US2823404 *Mar 1, 1955Feb 18, 1958Owens Brush CompanyTwo-piece toothbrush
US2934776 *Feb 10, 1956May 3, 1960George S ClemensToothbrush
US3795062 *Sep 20, 1972Mar 5, 1974Lamb TChild{40 s hand trainer
US4519109 *Apr 16, 1984May 28, 1985Raymond D BeachTooth brush
US4542552 *Feb 16, 1984Sep 24, 1985Argembeau Etienne Y DToothbrushes
US4724570 *Jul 17, 1986Feb 16, 1988Hitzman Alice FToothbrush for sulcular brushing
US5025525 *Feb 9, 1990Jun 25, 1991Munoz Jose RTooth brush with an anatomically compatible structure
US5191671 *Aug 22, 1991Mar 9, 1993Rudnick Martin EToothbrush handle
US5306151 *Oct 19, 1992Apr 26, 1994Samuel RauchToothbrush
US5862559 *Sep 11, 1997Jan 26, 1999Hunter; FrankToothbrush for interproximal and periodontal pocket cleaning
US5926897 *May 10, 1996Jul 27, 1999The Procter & Gamble CompanyToothbrush having bristles for interproximal cleaning
US6178583May 28, 1999Jan 30, 2001The Procter & Gamble CompanyToothbrush having bristles for interproximal cleaning
US6332233 *Jan 27, 2000Dec 25, 2001Genevieve C. ProulxToothbrush handle
US6401290 *Aug 7, 2000Jun 11, 2002Newell Operating CompanyPaint brush with improved grip construction
US6851153May 29, 2002Feb 8, 2005James P. LehmanToothbrush
US8448284 *Mar 23, 2007May 28, 2013Trisa Holding AgToothbrush with faceted handle
US8499401 *Jan 11, 2012Aug 6, 2013Michael DavidsonToothbrush and method using the same
US20090183331 *Mar 23, 2007Jul 23, 2009Trisa Holding AgToothbrush With Faceted Handle
US20120137460 *Jan 11, 2012Jun 7, 2012Michael DavidsonToothbrush and method using the same
EP0120831A2 *Feb 20, 1984Oct 3, 1984d'Argembeau, Etienne Yves G. J.Toothbrush
EP0384877A1 *Jan 16, 1990Aug 29, 1990Munoz Josť RabasaAnatomically designed toothbrush
EP1416823A1 *May 22, 2002May 12, 2004John O. Butler CompanyDental hygiene system handle
WO1988003772A1 *Nov 25, 1987Jun 2, 1988Menadier Heilmittel GmbhToothbrush
WO2003011072A1 *May 22, 2002Feb 13, 2003Butler John O CoDental hygiene system handle
Classifications
U.S. Classification15/167.1, D04/104, 15/143.1
International ClassificationA46B5/02
Cooperative ClassificationA46B2200/1066, A46B5/02
European ClassificationA46B5/02