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Publication numberUS2438268 A
Publication typeGrant
Publication dateMar 23, 1948
Filing dateJun 3, 1946
Priority dateJun 3, 1946
Publication numberUS 2438268 A, US 2438268A, US-A-2438268, US2438268 A, US2438268A
InventorsLouis R Bressler
Original AssigneeLouis R Bressler
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Flexible bristle head toothbrush
US 2438268 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

March 23, 1948! BRESSLER 2,438,268


Patented Mar. 23, 1948 UNITED STATES OFFICE FLEXIBLE BRISTLE HEAD TOOTHBRUSH Louis B. Bressler, Southampton, Mass.

Application June 3, 1946, Serial No. 673,985

1 Claim. 1

This invention relates to improvements in flexible bristle head toothbrushes and is directed more particularly to toothbrushes having flexible bristle carrying head portions.

The principal objects of the invention are directed to the provision of a toothbrush having a bristle supporting head portion which is flexible whereby the same may conform to the contour of the teeth.

I am aware of toothbrushes of the type wherein the head portion is composed of spaced bristle supporting sections that are held in relatively movable position by a metal spring but the metal is exposed to the chemical action of dentifrices and the like. This is objectionable for the reason the metal becomes corroded and the spaces between the sections are reduced by the metal and tend to become clogged up.

According to this invention the head portion of the toothbrush includes a plurality of bristle supporting sections which are spaced apart and joined together by connectors with a resilient or yieldable member extending through the sections and connectors. The brush is made from plastic material which is somewhat yieldable or flexible so that the connectors permit relative movement of the sections while the resilient member functions as a spring. In this way the sections are held against relative displacement while being relatively movable and the resilient r yieldable member is enclosed by the material of the brush and thereby protected against the action of dentifrices and the like.

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:

Fig. 1 is a plan view of a toothbrush embodying the novel features of the invention;

Fig. 2 is a side elevational view of the brush shown in Fig. 1; and

Fig. 3 is an enlarged sectional view on the line 3-3 of Fig. 1.

Referring now to the drawings more in detail, the invention will be fully described.

The toothbrush of the invention includes a handle portion 2 and a head or bristle portion 4.

The bristle portion includes a plurality of bristle supporting sections 6 which are spaced apart and connected together by connectors 8. The section adjacent the handle portion is, of course, connected to the handle portion by connectors.

The connectors are preferably disposed adjacent the rear sides of the sections 6 and are spaced apart transversely of the sections so as to be adjacent opposite sides thereof. This arrangement provides transversely extending spaces or slots In between the sections which are of considerable area whereby foreign substances may pass through the slots and not lodge therein.

Side portions 12 of a spring-like member ex tend from the end of the handle through the sections and the connectors and are preferably connected ,by a portion M at their outer ends and, if desired, by a portion H5 at their inner ends.

The spring-like member will be made from resilient or yieldable wire and formed so as to be moldable in the toothbrush which will preferably be made by a molding operation from plastic material that is somewhat yieldable or flexible.

The side members l2 will preferably be curved longitudinally so as to normally hold the sections in the relative positions shown in Fig. 2.

The material from which the brush is made being yieldable or flexible the connectors 8 permit relative movements of the sections 6 so that in use the sections may conform to the contour of the teeth. Relative movements of the sections is resisted to some extent by the members l2 which tend to maintain the section in the normal relative positions shown in Fig. 2.

It will be noted that the sections are held in spaced relation against displacement while the connectors permit relative movements of the sections against the action of the spring-like member which is enclosed and thereby protected against the action of substances likely tocause corrosion thereof.

The invention may be embodied in other specific forms without departing from th 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 modifications 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 claim and secure by Letters Patent of the United States is:

A toothbrush construction comprising in combination, an integral handle portion having a bristle portion at the outer end thereof made from relatively yieldable material, said bristle portion including a plurality of bristle sections spaced apart longitudinally of the toothbrush 5 4 concealed thereby, and bristles secured to said bristle sections.


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

UNITED STATES PATENTS 10 Number Name 7 Date 1,466,723 Izawa Sept. 4, 1923' 1,928,328 Carpentier Sept. 26, 1933 2,254,365 Griflith Sept. 1941

Patent Citations
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US1928328 *Nov 25, 1931Sep 26, 1933Erik Dempster LindegrenToothbrush
US2254365 *Jun 6, 1939Sep 2, 1941Griffith Edward EConvertible toothbrush
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2622259 *Jul 11, 1947Dec 23, 1952Francis E ChauvinToothbrush having separate rows of long bristles and short bristles
US2631320 *May 12, 1950Mar 17, 1953Bressler Louis RToothbrush
US2664582 *Nov 21, 1949Jan 5, 1954Kammann Morris HFlexible handle paintbrush
US2722031 *Jun 21, 1952Nov 1, 1955Bressler Louis RBrush having relatively movable bristle carrying sections
US2730747 *Jun 21, 1952Jan 17, 1956Bressler Louis RBrush having relatively movable bristle carrying sections
US4227276 *Feb 7, 1979Oct 14, 1980Ginsburg Stephen JToothbrush with thermally deformable handle
US4691405 *Jul 29, 1985Sep 8, 1987Reed Joseph CToothbrush having adjustable bristle-mounted tabs
US4829621 *Jul 9, 1986May 16, 1989Phenegar John SToothbrush
US5323504 *Jul 26, 1993Jun 28, 1994Mccusker Robert MDeformable toothbrush
US5694658 *Mar 4, 1996Dec 9, 1997Natural Sparkle Im/Ex Co. Ltd.Flexible toothbrush
US5758383 *Dec 10, 1996Jun 2, 1998Colgate-Palmolive CompanyContouring toothbrush head
US5836036 *Jun 20, 1997Nov 17, 1998Ivory; BrianSelf cleaning toothbrush
US5898967 *Oct 31, 1997May 4, 1999Wu; Jian ZhiFlexible toothbrush
US6073299 *Jul 12, 1999Jun 13, 2000Colgate-Palmolive CompanyContouring toothbrush head
US6178582 *Aug 22, 1996Jan 30, 2001Smithkline Beecham Consumer Healthcare GmbhToothbrush comprising a resilient flex region
US6219874 *Jul 12, 1995Apr 24, 2001The Procter & Gamble Co.Resiliently flexible bristle bearing head toothbrush
US6314605Aug 1, 1997Nov 13, 2001The Procter & Gamble CompanyToothbrush
US6314606Oct 22, 1999Nov 13, 2001Colgate-Palmolive CompanyContouring toothbrush head
US6327735Feb 17, 1998Dec 11, 2001Smithkline Beecham Consumer Healthcare, GmbhPower tip toothbrush with ball joint
US6408476Jan 17, 1997Jun 25, 2002The Procter & Gamble CompanyToothbrush with elastomer filled flexible head
US6442786Jan 25, 2001Sep 3, 2002Smithkline Beecham Consumer Healthcare GmbhToothbrush comprising a resilient flex region
US6442787Jul 3, 2001Sep 3, 2002Colgate-Palmolive CompanyContouring toothbrush head
US6505373Apr 18, 2001Jan 14, 2003The Procter & Gamble CompanyToothbrush
US6514445Dec 12, 1997Feb 4, 2003The Procter & Gamble CompanyBrush making
US6612770 *Feb 28, 2001Sep 2, 2003Yoshihiro AoyamaBrush head of toothbrush
US6675428Dec 15, 2000Jan 13, 2004Smithkline Beecham Consumer Healthcare GmbhToothbrush comprising a resilient flex region
US6817054 *Jun 20, 2003Nov 16, 2004Colgate-Palmolive CompanyToothbrush
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US8099820Jan 29, 2009Jan 24, 2012Colgate-Palmolive CompanyToothbrush
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US8327492May 16, 2011Dec 11, 2012The Procter & Gamble CompanyToothbrush with elastomer filled flexible head
US8332985Nov 18, 2011Dec 18, 2012The Procter & Gamble CompanyToothbrush
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U.S. Classification15/167.1
International ClassificationA46B7/06
Cooperative ClassificationA46B7/06, A46B5/0025, A46B2200/1066
European ClassificationA46B5/00B1, A46B7/06