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Publication numberUS2631320 A
Publication typeGrant
Publication dateMar 17, 1953
Filing dateMay 12, 1950
Priority dateMay 12, 1950
Publication numberUS 2631320 A, US 2631320A, US-A-2631320, US2631320 A, US2631320A
InventorsBressler Louis R
Original AssigneeBressler Louis R
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 2631320 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)

March 17, 1953 R. BRESSLER 2,631,320

TOOTI-IBRUSH Filed May 12, 1950 IN V EN TOR.

Patented Mar. 17, 1953 UNITED STATES PATENT OFFICE TOOTIERUSH Louis B. Bressler, Southampton, Mass.

Application May 12, 1950, Serial No. 161,694

1 Claim. 1

My invention relates to new and useful improvements in toothbrushes and is directed more particularly to toothbrushes having flexible bristle-carrying head portions and to an improvement in the means for producing same.

It is the principal object of my invention to provide a novel and improved construction of the type in which the toothbrush has a resilient bristle supporting head portion which is flexible whereby the same may conform to the contour of the teeth when the brush is in use.

One of the primary purposes of my invention is to provide structural and operational improvements in devices of the class to which reference has been made, which improvements not only simplify the structure as such but also provide important distinct advantages in strength, durability and the like.

Another object of my invention is to provide a brush which can freely and readily fit itself to a set of teeth of any configuration and/or dimension so as to keep the bristles thereof in close touch with the teeth surfaces by very reason of this aforementioned flexibility.

With the above primary object in view, it is another object of my invention to provide a construction of the above described character which is not only distinctive in its appearance and practical in its value but also reliable in its operation and relatively simple in its construction.

My invention also consists in certain new and original features of construction hereinafter set forth and claimed in conjunction with the annexed drawings which illustrate a certain form of embodiment thereof, which form is deemed preferably since the same has been found in practice to give satisfactory and reliable results, although it is to be understood that the various parts can be changed within the scope of the claim without departing from the broad aspects and spirit of the invention.

All of the above cited objects, I accomplish by means of such structure and relative arrangement of parts, as will fully appear by a perusal of the description below and by various specific features which will be hereinafter set forth.

With the foregoing and various other novel features and advantages and other objects of my invention as will become more apparent as the description proceeds, the invention consists in certain novel features of construction and in the combination and arrangement of parts as will be hereinafter more particularly pointed out in the claim hereunto annexed and more fully described and referred to in connection with the accompanying drawings wherein:

Figs. 1 and 2 are top plan and side elevational views respectively of the resilient leaf member of my invention; and

Figs. 3 and 4 are top plan and side elevational views respectively of the toothbrush of my invention.

Referring now to the drawing more in detail, and referring more particularly to the preferred form of my invention, 1 have shown a toothbrush generally indicated by 2 which includes a handle member 4 of conventional design and a head portion 6.

The head portion generally designated by 6 comprises a plurality of separate bristle supporting sections 8, l0, l2 and M which are spaced apart as shown, so as to be movable relative to each other as will subsequently appear.

A leaf spring member I6 is provided which in the preferred form of the invention is relatively thin and generally elongated as shown in Figs. 1 and 2. It is preferably made of a spring metal so as to be flexible and yieldable for the purposes of the invention.

A plurality of apertures [8 are provided which are spaced throughout the length of the member l6. On the outer longitudinal side edges of the member [6 cut-out portions or recesses 20 are provided for purposes as will presently be observed.

The toothbrush may be formed by a mouldingoperation in which case the spring member I6 will be inserted in a mould and the brush formed therein. There are various types of plastic which are suitable for forming the structure.

The formed sections and head end of the handle carry tufts of brustles indicated by 24, upper ends 26 of the tufts being embedded in plastic.

In brush manufacture it is common practice to provide tuft sockets in the brush and to secure upper ends of the tufts therein by staples or the like. The sockets are frequently formed by drilling operations.

Although it has been stated that brush may be formed by a moulding operation and that the tufts of bristles may be secured in holes, there may be other ways adapted to produce the novel structure.

According to the invention the tufts of bristles are disposed to coincide with the openings I8 and recesses of the spring member l6 as shown in Fig. 3. The ends of the bristle tufts will be out of contact with the member I6.

The spring member being relatively thin, has a considerable transverse width and length so as to extend throughout a large area of the sections and handle end. There is then a considerable cross sectional area of the spring member at adjacent portions of the sections so that the said sections are relatively movable or yieldable.

Other apertures l9 spaced from the bristle apertures are provided. These apertures are not in alignment with bristle tufts and material of the end head and sections may enter these apertures to assist in securing the member IE to the sections.

The head sections of many brushes embodying the novel features of the invention have been flexed many hundreds of times without rupture or crystallization of the member Hi. This is accounted for by the fact the said member has a considerable transverse width and even though it is relatively thin it has a considerable cross sectional area at its points of flexing.

Thus, the chief feature of the present invention resides in the fact that the head portion or the toothbrush in which the bristles are seated is composed of several small sections instead of a single large section as in the case of ordinary brushes and these sections are connected together by means of the thin leaflike member of steel.

As a result of this construction, the toothbrush is able to be flexed freely during actual use.

The invention may be embodied in other specific forms without departing from the essential characteristics thereof. Hence, the present embodiments are therefore to be considered in all respects merely as being illustrative and not as being restrictive, the scope of the invention being indicated by the appended claim rather than by the foregoing description, and all modificaticns and variations as fall within the meaning and purview and range of equivalency of the appended claim are therefore intended to be embraced therein.

What it is desired to claimand secure by Letters Patent of the United States is:

A toothbrush of the type having a flexible head comprising, a toothbrush having an elongated handle and a sectionalized head at one end thereof enclosing a resilient member, said head including an inner head section integral with an end of said handle and an outer head section and. a plurality of intermediate head sections between said inner and outer sections, said resilient member including an elongated flat thin strip of resilient metal having opposite ends disposed in said inner and outer head sections and having an intermediate portion extending through said intermediate head sections, said resilient member being provided throughout its length with a longitudinal row of holes therethrough and on oppo site longitudinal edges with spaced recesses disposed in said head sections, and transversely spaced rows of longitudinally spaced tufts of bristles having upper ends thereof secured in said head sections with the tufts of adjacent rows of tufts extending across said head sections transversely of said head sections, upper ends of said tufts disposed to coincide with the openings and recesses of said resilient member and being out of contact therewith. I


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

UNITED STATES PATENTS Number Name Date 1,456,723 Izawa Sept. 4, 1923 1,735,582 Meadofi Nov, 12, 1929 1,928,328 Carpentier :Sept. 26, 1933 2,254,365 Griffith et a1. Sept. 2, 1941 2,438,268 Bressler .Mar. 23', 1.948 2,443,297 Bressler June 15. 1948

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US1466723 *Nov 12, 1921Sep 4, 1923Riichiro IzawaToothbrush
US1735582 *Sep 17, 1927Nov 12, 1929Meadoff Abraham SToothbrush
US1928328 *Nov 25, 1931Sep 26, 1933Erik Dempster LindegrenToothbrush
US2254365 *Jun 6, 1939Sep 2, 1941Griffith Edward EConvertible toothbrush
US2438268 *Jun 3, 1946Mar 23, 1948Louis R BresslerFlexible bristle head toothbrush
US2443297 *Feb 8, 1947Jun 15, 1948Bressler Louis RToothbrush
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4520526 *Jun 22, 1984Jun 4, 1985Peters Charles WResiliently flexible toothbrush
US5040261 *Oct 31, 1989Aug 20, 1991Blendax GmbhGripping slide for a toothbrush handle
US5105499 *Mar 1, 1991Apr 21, 1992The Procter & Gamble CompanyToothbrush having handle joined to brush head by non-pinching flexible twin beam structure
US5146645 *Mar 1, 1991Sep 15, 1992The Procter & Gamble CompanyToothbrush employing resiliently buckling arch to indicate excessive brushing pressure
US5224763 *Dec 30, 1991Jul 6, 1993The Procter & Gamble CompanyMethod of fastening bristle tufts to bristle carrier
US5323504 *Jul 26, 1993Jun 28, 1994Mccusker Robert MDeformable toothbrush
US5511275 *May 16, 1995Apr 30, 1996The Procter & Gamble CompanyToothbrush exhibiting three-dimensional bristle profile and end rounded bristles for improved interproximal cleaning without increasing gum irritation
US5758383 *Dec 10, 1996Jun 2, 1998Colgate-Palmolive CompanyContouring toothbrush head
US5926897 *May 10, 1996Jul 27, 1999The Procter & Gamble CompanyToothbrush having bristles for interproximal cleaning
US6073299 *Jul 12, 1999Jun 13, 2000Colgate-Palmolive CompanyContouring toothbrush head
US6178582Aug 22, 1996Jan 30, 2001Smithkline Beecham Consumer Healthcare GmbhToothbrush comprising a resilient flex region
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US6314606Oct 22, 1999Nov 13, 2001Colgate-Palmolive CompanyContouring toothbrush head
US6327735Feb 17, 1998Dec 11, 2001Smithkline Beecham Consumer Healthcare, GmbhPower tip toothbrush with ball joint
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US6442787Jul 3, 2001Sep 3, 2002Colgate-Palmolive CompanyContouring toothbrush head
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US6817054 *Jun 20, 2003Nov 16, 2004Colgate-Palmolive CompanyToothbrush
US6996870Apr 1, 2002Feb 14, 2006Colgate-Palmolive CompanyContouring toothbrush head
US7024720 *Nov 16, 2004Apr 11, 2006Colgate-Palmolive CompanyToothbrush
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US7908699Dec 23, 2004Mar 22, 2011Colgate-Palmolive CompanyOral care implement
US7962992Dec 23, 2005Jun 21, 2011The Procter & Gamble CompanyToothbrush with elastomer filled flexible head
US8060970Mar 11, 2010Nov 22, 2011The Procter & Gamble CompanyToothbrush
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US8156599Oct 3, 2007Apr 17, 2012Colgate-Palmolive CompanyOral care implement having a head insert
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US8332985Nov 18, 2011Dec 18, 2012The Procter & Gamble CompanyToothbrush
US8393042Oct 9, 2009Mar 12, 2013Colgate-Palmolive CompanyOral care implement
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US8584299Jul 25, 2007Nov 19, 2013The Procter & Gamble CompanyElectric toothbrushes
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US8745804 *Jul 2, 2010Jun 10, 2014Steven JakshaStainless steel toothbrush with thermochromic display
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US8876221Aug 23, 2011Nov 4, 2014Colgate-Palmolive CompanyOral care implement
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US8990996Oct 8, 2012Mar 31, 2015Colgate-Palmolive CompanyToothbrush
US9167888Jul 10, 2014Oct 27, 2015Colgate-Palmolive CompanyOral care implement having flexibly supported cleaning elements extending in opposite directions
US9504312Oct 8, 2013Nov 29, 2016The Gillette Company LlcOral hygiene implements having flexible elements, and methods of making the same
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US20100162506 *Mar 11, 2010Jul 1, 2010Sanjay Amratlal SolankiToothbrush
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US20110185520 *Jul 25, 2007Aug 4, 2011John Geoffrey ChanElectric toothbrushes
US20160135577 *Oct 20, 2015May 19, 2016Salvador AlvarezDouble Action Push Broom
USRE38521Jul 28, 1999May 25, 2004Lingner & Fischer GmbhToothbrush with resiliently flexible head
EP1528873A2 *Aug 8, 2003May 11, 2005Colgate-Palmolive CompanyToothbrush
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U.S. Classification15/167.1, 15/201
International ClassificationA46B3/16, A46B3/00
Cooperative ClassificationA46B3/16
European ClassificationA46B3/16