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Publication numberUS2244615 A
Publication typeGrant
Publication dateJun 3, 1941
Filing dateJan 2, 1940
Priority dateJan 3, 1939
Publication numberUS 2244615 A, US 2244615A, US-A-2244615, US2244615 A, US2244615A
InventorsGarcin Louis
Original AssigneeGarcin Louis
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 2244615 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)

June 3, 1941. l.. GARclN 27,244,615

TOOTHBRUSH Filed Jan. 2, 1940 Patented June 3, 1941 TOOTHBRUSH Louis Garcin, Paris, France Application January 2, 1940, Serial No. 312,112 In France January 3, 1939 1 Claim.

by the teeth whose inner and outer sides are brushed at the same time by the lateral rows of .long bristles, while the cusps or grooves are brushed by the short middle bristles.

According to another characteristic, the lateral bristles have preferably the oblique position in the transverse direction, and their ends converge towards the middle longitudinal plane, in`such way that the ends of these bristles will act at a better angle upon the lateral faces or sides of the teeth.

In order to further this action, the lateral bunches of bristles have preferably a bevelled shape, and the bristles will decrease in length according as they come near the short middle row or rows.

According to another characteristic, the back of the brush is provided with one or more middle rows of relatively short bristles, and these will permit, when the mouth is properly closed, of brushing the cusps of the teeth of the jaw opposite the one upon whose teeth the brush is displaced along its longitudinal channel.

The said middle bristles may consist, to great advantage, of simple extensions of the short middle bristles of the principal face.

In the accompanying drawing, which is given solely by way of example:

Fig. 1 is an elevational View, with a partial lengthwise section, of a tooth-brush in conformity to the invention.

Fig. 2 is a corresponding cross-section on the line 2'2 of Fig. 1.

Fig. 3 is a corresponding plan view.

Fig. 4 is a sectional view showing the method of utilization of the brush.

In the embodiment herein represented, the support of the brush, which consists of moulded material or the like, comprises a body I having preferably a curved form in cross-section, which is extended by a handle 2 having preferably a straight form, one or both faces of the handle being preferably provided with grooves or other small rough parts 3 in order that it will not slip in the hand.

The said body I carries on the concave side two rows of middle bunches 4, in which the bristles have a short length and are, preferably, relatively soft.

On the respective sides of the middle bunches 4 are disposed bunches of greater length, 5 and 6, which are oblique with reference to the middle longitudinal plane XX (owing to the form of Ythe support), and thus the bristles of these bunches will extend towards this middle planeat their outer ends. The said lateral bunches 5 and 6, which form below the middle bunches 4 a longitudinal channel 1 (Fig. 2) are preferably bevelled at 8 and 9, and thus the bristles adjacent the plane XX will be shorter. The bunches 5 and 6 preferably consist of bristles which are harder than the ones used for the bunches 4, and moreover, they are preferably of a diierent colour. For instance, the `bristles 4 maybe white while the bristles 5 land 6 may consist of black boar hairs.

The lateral bunches 5 and 6 have different lengths according to their positions along the support I. These lengths are preferably such that the visible longitudinal outline of their ends (Fig. 1) will form a convex curve a b c which projects at the middle part, on the contrary to the known brushes in which the longest bunches are usually situated near the end of the brush.

The said brush is completed by two rows of bunches I0 which extend upon the back of the support, at its middle Ipart. These bunches Ill may consist, to advantage, as herein represented, of extended parts of the bunches 4, and the .parts extending from the two faces of the support may have the same or diierent lengths.

The relative positions in plan view (Fig. 3) of the various bunches may be as desired, and they may be disposed in quincunx, as herein represented, or in cross rows, etc.

In order to make use of the brush, it is placed upon the teeth of the jaw to be cleaned, such as the lower jaw, in such way that a certain number of teeth of this jaw will be engaged in the channel 'I provided below the middle bunches 4 and between the lateral -bunches 5 and 6. The bristles 4 will make contact with the cusps or the grooves II (Fig. 4) of the teeth I2, and the lateral bunches 5, 6 will make contact with the outer sides I3 and the inner sides I4 of the teeth, and

then it is simply necessary to move the brush along the jaw in order to clean the whole of the teeth. The movement of the brush is facilitated by the fact that it is automatically guided by the teeth engaged in the channel 'I.

If the mouth should be closed upon the brush, the teeth I5 of the upper jaw will make contact, by their cusps, with the bunches I0, and

will thus be cleaned in these cusps at the same time.

The brush will then be overturned, for the cleaning of the outer and inner sides of the teeth be reduced to one. or may exceed two. 'I'he support may have a diierent shape from the one herein represented, and in particular, in crosssection. 'I'he obliquity of the lateral lbunches 5 and 8 may differ from what is herein represented, and it may vary from a position perpendicular to the middle plane XX, to a position which is almost parallel, or is even parallel, to this plane.

The size of the brush may obviously vary to a great degree (brushes i'or children and adults).

Having now described my invention what I claim as new and desire to secure by Letters Patent is:

A tooth -brush comprising a. support and bristles mounted on one face of said support, the bristles mounted along the sides o! said tace being longer and stiier than the bristles mounted in the middle of said face, the longer bristles being inclined inwardly, whereby a longitudinal ,channel is formed .by said bristles, said tooth brush being guided by the teeth while brushing the cusps and the inner and outer sides of the teeth at the same time.


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2558332 *Jul 21, 1947Jun 26, 1951Artale FrankToothbrush having removable bristle element
US2797424 *Oct 20, 1954Jul 2, 1957Olson AlfredToothbrush
US2807820 *Jul 1, 1952Oct 1, 1957Dinhofer MiltonFlexible brush head and means to retain it in a predetermined position
US4115894 *Apr 18, 1977Sep 26, 1978Peterson Vacharee SToothbrush for simultaneous-surface and sulcus cleaning
US4274174 *Feb 6, 1980Jun 23, 1981G.R.P. Gesellschaft Fur Rationelle Psychologie OhgToothbrush
US4365380 *Oct 19, 1979Dec 28, 1982Fassler Fred GBrush-like cleaning tool for cleaning grills and other structures having elongate rod-like members
US4441227 *Mar 10, 1982Apr 10, 1984Argembeau Etienne Y DBrushes and the manufacture thereof
US4502177 *Mar 2, 1983Mar 5, 1985Beggs Russell JToothbrush
US4592594 *Dec 20, 1983Jun 3, 1986Argembeau Etienne Y DBrushes and the manufacture thereof
US4757570 *Jun 14, 1986Jul 19, 1988Manfred HaeusserToothbrush for simultaneous cleaning of teeth on both sides
US5065470 *May 23, 1990Nov 19, 1991Diamond Albert JToothbrush
US5067195 *Jul 16, 1990Nov 26, 1991Sussman Harold IDevice for cleaning dental implant posts
US5114214 *Dec 13, 1988May 19, 1992Rolf BarmanProcess for producing tooth brushes and blanks for use for same
US5119522 *Oct 27, 1989Jun 9, 1992Potts Flora LToothbrush and brace cleaning kit
US5230118 *Nov 12, 1991Jul 27, 1993Ayman ChammaOrthodontic tooth-brush
US5257434 *Oct 11, 1989Nov 2, 1993Sunstar Kabushiki KaishaToothbrush
US5305490 *Apr 19, 1993Apr 26, 1994Lundgren James FToothbrush with firm grip handle
US5355546 *Dec 11, 1992Oct 18, 1994Scheier Paul AToothbrush with resilient flexible bristle support
US5544383 *Jul 21, 1995Aug 13, 1996Gamble; John A.Toothbrush
US5609431 *Aug 31, 1994Mar 11, 1997Innovative Cleaning Concepts, Inc.Cleaning material with material supply
US5839149 *Aug 26, 1996Nov 24, 1998Scheier; Paul A.Toothbrush with resilient flexible bristle support
US5881425 *Sep 3, 1996Mar 16, 1999Recycline, Inc.Recycled and recyclable toothbrush having bristle and handle configurations for improved oral hygiene
US5927819 *Feb 28, 1997Jul 27, 1999Gillette Canada Inc.Method and device for trimming and end-rounding bristles
US7036180 *Aug 11, 2004May 2, 2006Barbara HanlonTooth brush with four bristle groups
US7156105 *May 21, 2001Jan 2, 2007L'orealApplicator, device, and method
US8584299Jul 25, 2007Nov 19, 2013The Procter & Gamble CompanyElectric toothbrushes
US8955186Oct 15, 2013Feb 17, 2015The Procter & Gamble CompanyElectric toothbrushes
US20020011251 *May 21, 2001Jan 31, 2002Gueret Jean-Louis H.Applicator, device, and method
US20030126705 *Oct 11, 2002Jul 10, 2003Barbara HanlonTooth brush with four bristle groups
US20050000043 *Apr 16, 2004Jan 6, 2005The Procter & Gamble CompanyElectric toothbrushes
US20050015908 *Aug 11, 2004Jan 27, 2005Barbara HanlonTooth brush with four bristle groups
US20090044357 *Aug 16, 2007Feb 19, 2009The Procter & Gamble CompanyElectric toothbrushes
US20100263150 *Apr 17, 2009Oct 21, 2010Tessema Dosho ShifferawToothbrush
US20110113576 *Nov 17, 2009May 19, 2011Yankell Samuel LToothbrush with movable head
USRE39185Sep 18, 2002Jul 18, 2006Noe Dennis WAll-sided mouthbrush
DE1145577B *Jun 2, 1961Mar 21, 1963Best G M B H DrVerfahren zum Herstellen doppelseitig bestueckter Buersten
EP0123559A1 *Apr 25, 1984Oct 31, 1984Roy E. Stanford, Jr.Toothbrushes for cleaning sulcular areas of the teeth
WO1987001263A1 *Sep 4, 1986Mar 12, 1987Errol PastollToothbrushes
U.S. Classification15/167.2
International ClassificationA46B9/04
Cooperative ClassificationA46B9/04
European ClassificationA46B9/04