Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.

Patents

  1. Advanced Patent Search
Publication numberUS2266195 A
Publication typeGrant
Publication dateDec 16, 1941
Filing dateDec 13, 1938
Priority dateDec 13, 1938
Publication numberUS 2266195 A, US 2266195A, US-A-2266195, US2266195 A, US2266195A
InventorsHallock Robert Lay
Original AssigneeHallock Robert Lay
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Toothbrush
US 2266195 A
Abstract  available in
Images(1)
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

R. L. HALLOCK TOOTHBRUSH Dec. 16, 1941.

Filed Dec. 13, 1938 g X y F i 1 W 1 w A 4 Ar? 4 v w.

Patented Dec. 16 1 941 UNITED STATES PATENT OFFICE 2,266,195 TOOTHBRUSH Robert Lay Hallock, Newburgh, Ind.

Application December 13, 1938, Serial No. 245,345

1 Claim.

My invention relates to tooth brushes and has for its object to provide a tooth brush better adapted to conform to tooth set contours. In accordance with the invention, bristle carrying sections are mounted to have relative movement, preferably by independent cantilever support,

The preferred form of my invention is shown in the accompanying drawing, forming a part of this specification, and of which:

Fig. 1 is a top plan view;

Fig. 2 is a side View, partly in section, on the line 2--2 of Fig. 1;

Fig. 3 is taken on line 33 of Fig. 1;

Fig. 4 is taken on line 4-4 of Fig. 1; and

Figs. 5 and 6 show the action of the brush in use.

The toothbrush includes a handl Ill. Extending forwardly from the handle I are two lateral fingers II and an intermediate or central finger I2. At the forward end of the central finger I2 is a bristle carrying section I3 in which are mounted a group of tufts of bristles I4. Central finger I2 may be said to be an arm or extension carrying the bristle section I3, I4 as an independent unit. At the forward end of lateral fingers or arms II are bristle carrying sections I in each of which are mounted bristle tufts I6. Tufts I6 are behind and in longitudinal alignment with certain of the tufts I 4. Lateral connecting pieces I I connect bristle sections l5 with a front or leading bristle carrying section I8 in which are mounted a group of tufts of bristles I9. Bristles I9 are in alignment with bristles I4. Lateral fingers II carry bristle sections I5 and I8 independently of bristles I4.

For the purpose of description, it may be considered that the parts III, II, I! and IB constitute a tooth brush having a central portion removed forming a through-aperture in which is mounted a small tooth brush made up of the bristle carrying section I3 and its handle or arm I2, the end of arm I2 being joined to the main handle I0. Except for the attachment of arm I2 to handle I0, parts I2 and I3 are entirely independent of the remaining parts. There is, in effect, a narrow groove around parts I2 and I3 except at the rear point of attachment which passes through the body of the brush whereby the independently mounted tufts can have independent movement in the general line of extent of the bristles.

The handle Ill, fingers I2 and II, connecting pieces I1 and bristle carrying sections (not including the bristles) are preferably made integral and of an elastic resilient material of such character that the handle I0 is essentially rigid while the fingers II and I2 are quite flexible.

Such materials ar known and are at present used for tooth brushes. Various molded plastics may be used of either the field of resin derivatives or cellulose derivates. Examples of such substances are phenol-formaldehyde resins and pyroxylin. In order to increase the yieldability of the fingers II and I2 they may be made of reduced cross-section as shown at 20.

It may be said that the bristle groups I4 on the one hand and the bristle groups I6 and I9 on the other hand are independently carried at the ends of the respective cantilevers I2 and II.

The action produced by the independent support of the longitudinally displaced bristle tufts is illustrated in Figs. 5 and 6. I The tufts can accommodate themselves to teeth which have a generally convex or concave curvature as a group. Considering spaced teeth as in a given plane, the

tufts I4 can be moved into contact with an intermediate tooth to one side or the other by slight hand pressure on the handle as is ordinarily applied.

In manufacture, the body may be molded directly in the form shown, or it may be molded as a solid block and the slot between the parts may be sawed out.

It will be seen that in the construction as disclosed the bristles are relatively movable to conform to concave and convex contours while appreciable relative sideways movement of bristle groups is prevented.

It will be understood that the invention is not limited to the preferred form disclosed.

What I claim is:

A tooth brush including a main bristle unit, a handle, a connection between said handle and said main unit, said main unit including longitudinally spaced bristle carrying sections having bristle groups in longitudinal alignment, a central bristle carrying section disposed between the bristle carrying sections of said main unit and carrying a plurality of groups of bristles in longitudinal alignment and between bristle groups of said main unit, said main unit having parts extending laterally on both sides of said central bristle carrying section and close thereto, a member connecting said central bristle carrying section with said handle, said member being resilient relative to the connection between the handle and the main unit to permit movement of the bristles of the central section relative to those of the main unit in the general direction of the bristles so that the bristles in their entirety can conform to concave and convex contours, while appreciable relative sideways movement of the bristle groups is prevented.

ROBERT LAY HALLOCK.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3152349 *Jul 22, 1963Oct 13, 1964Du PontToothbrush
US4783874 *Apr 3, 1987Nov 15, 1988Robert Perches & Associates, Inc.Adjustable head brush
US4864676 *May 30, 1987Sep 12, 1989Heinrich SchaiperTooth brush
US5121520 *Jul 24, 1990Jun 16, 1992Inter-X Scientific, Inc.Twin-headed toothbrush
US5373602 *Dec 15, 1993Dec 20, 1994Bang; Kook B.Toothbrush
US5499421 *Jun 15, 1993Mar 19, 1996Brice; Michael F.Twin-headed toothbrush
US5524319 *May 31, 1995Jun 11, 1996Avidor; JosephToothbrush having spring-mounted bristle holders
US5651158 *May 9, 1995Jul 29, 1997Lingner & Fischer GmbhToothbrush with resiliently flexible head
US5758383 *Dec 10, 1996Jun 2, 1998Colgate-Palmolive CompanyContouring toothbrush head
US5813079 *Sep 12, 1996Sep 29, 1998Lingner & Fischer GmbhToothbrush having a flexibility linked zone in its head
US5839148 *Apr 17, 1997Nov 24, 1998The Procter & Gamble CompanyToothbrush with both stationary and moving tufts
US5956797 *Jan 27, 1998Sep 28, 1999Wilson; Vernon C.Toothbrush device
US6073299 *Jul 12, 1999Jun 13, 2000Colgate-Palmolive CompanyContouring toothbrush head
US6112361 *Nov 10, 1997Sep 5, 2000Michael F. BriceTwin-headed toothbrush
US6178582Aug 22, 1996Jan 30, 2001Smithkline Beecham Consumer Healthcare GmbhToothbrush comprising a resilient flex region
US6219874Jul 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
US6675428Dec 15, 2000Jan 13, 2004Smithkline Beecham Consumer Healthcare GmbhToothbrush comprising a resilient flex region
US6996870Apr 1, 2002Feb 14, 2006Colgate-Palmolive CompanyContouring toothbrush head
US7174596 *Dec 20, 2002Feb 13, 2007Trisa Holding AgToothbrush and process for producing such a toothbrush
US7251849Aug 22, 2005Aug 7, 2007Colgate-Palmolive CompanyToothbrush
US7354112Feb 27, 2006Apr 8, 2008Trisa Holding AgToothbrush and process for producing such a toothbrush
US7363823Jul 11, 2005Apr 29, 2008Nmoc, LlcTwin-headed toothbrush
US7418759 *Oct 15, 2004Sep 2, 2008Trisa Holding AgToothbrush and process for producing the same
US7445295Nov 30, 2007Nov 4, 2008Trisa Holding AgToothbrush and process for producing such a toothbrush
US7458647Nov 30, 2007Dec 2, 2008Trisa Holding AgToothbrush and process for producing such a toothbrush
US7472965Jul 26, 2007Jan 6, 2009Trisa Holding AgToothbrush and process for producing the same
US7520571Feb 11, 2008Apr 21, 2009Trisa Holding AgToothbrush and process for producing such a toothbrush
US7574765Jul 26, 2007Aug 18, 2009Trisa Holding AgToothbrush and process for producing the same
US7707676Jun 30, 2006May 4, 2010The Procter & Gamble CompanyToothbrush
US7721376Dec 23, 2004May 25, 2010Colgate-Palmolive CompanyOral care implement
US7744360Oct 22, 2004Jun 29, 2010Glaxosmithkline Consumer Healthcare Gmbh & Co., KgProcess for making toothbrushes
US7757326 *Oct 30, 2003Jul 20, 2010Cologate-Palmolive CompanyToothbrush with enhanced cleaning effects
US7841041May 8, 2006Nov 30, 2010Colgate-Palmolive CompanyOral care implement
US7908699Dec 23, 2004Mar 22, 2011Colgate-Palmolive CompanyOral care implement
US7941886Sep 19, 2003May 17, 2011Braun GmbhToothbrushes
US7962992Dec 23, 2005Jun 21, 2011The Procter & Gamble CompanyToothbrush with elastomer filled flexible head
US7975344Jul 6, 2007Jul 12, 2011The Gillette CompanyToothbrush head
US7975346Mar 31, 2010Jul 12, 2011Colgate-Palmolive CompanyOral care implement
US7988238Mar 11, 2009Aug 2, 2011Trisa Holding AgToothbrush and process for producing such a toothbrush
US8016364Jun 25, 2009Sep 13, 2011Trisa Holding AgToothbrush and process for producing the same
US8060970Mar 11, 2010Nov 22, 2011The Procter & Gamble CompanyToothbrush
US8079110May 26, 2010Dec 20, 2011Colgate-Palmolive CompanyOral care implement
US8151397Jun 26, 2008Apr 10, 2012Colgate-Palmolive CompanyOral care implement having flexibly supported cleaning elements extending in opposite directions
US8220097 *Sep 24, 2010Jul 17, 2012Braun GmbhBrush head for toothbrush
US8281448Oct 3, 2007Oct 9, 2012Colgate-Palmolive CompanyOral care implement having one or more moving sections
US8291539Aug 5, 2011Oct 23, 2012Trisa Holding AgToothbrush and process for producing the same
US8327492May 16, 2011Dec 11, 2012The Procter & Gamble CompanyToothbrush with elastomer filled flexible head
US8332982Aug 24, 2009Dec 18, 2012The Gillette CompanyVibrating toothbrush
US8332985Nov 18, 2011Dec 18, 2012The Procter & Gamble CompanyToothbrush
US8393042Oct 9, 2009Mar 12, 2013Colgate-Palmolive CompanyOral care implement
US8528148Jun 7, 2011Sep 10, 2013The Gillette CompanyToothbrush head
US8561247Jun 17, 2011Oct 22, 2013Colgate-Palmolive CompanyOral care implement
US8578544 *Jan 31, 2008Nov 12, 2013The Gillette CompanyOral hygiene implements having flexible elements, and methods of making the same
US8578546Oct 2, 2012Nov 12, 2013Colgate-Palmolive CompanyOral care implement having one or more moving pieces
US8621698Apr 6, 2011Jan 7, 2014Braun GmbhToothbrushes
US8800093Dec 2, 2011Aug 12, 2014Colgate-Palmolive CompanyOral care implement
US8806695Mar 20, 2012Aug 19, 2014Colgate-Palmolive CompanyOral care implement having flexibly supported cleaning elements extending in opposite directions
US8839481May 7, 2013Sep 23, 2014Colgate-Palmolive CompanyOral care implement
US8857003Aug 18, 2008Oct 14, 2014Colgate-Palmolive CompanyContouring toothbrush head
US8857005 *Feb 9, 2012Oct 14, 2014The Ohio State UniversityBrush with structure for hair removal
US8857919Oct 9, 2013Oct 14, 2014Colgate-Palmolive CompanyOral care implement having one or more moving sections
US8876221Aug 23, 2011Nov 4, 2014Colgate-Palmolive CompanyOral care implement
US8990996Oct 8, 2012Mar 31, 2015Colgate-Palmolive CompanyToothbrush
US8997298May 13, 2013Apr 7, 2015Harry KrasnickTransversal cleaning apparatus
US20040177462 *Mar 14, 2003Sep 16, 2004The Gillette CompanyToothbrush head
US20050091767 *Oct 30, 2003May 5, 2005Eduardo JimenezToothbrush with enhanced cleaning effects
US20080184511 *Jan 31, 2008Aug 7, 2008The Gillette CompanyOral hygiene implements having flexible elements, and methods of making the same
US20130206183 *Feb 9, 2012Aug 15, 2013The Ohio State UniversityBrush with structure for hair removal
USRE38521Jul 28, 1999May 25, 2004Lingner & Fischer GmbhToothbrush with resiliently flexible head
USRE42985Dec 20, 2002Dec 6, 2011Trisa Holding AgToothbrush and process for producing such a toothbrush
USRE44346Dec 20, 2002Jul 9, 2013Trisa Holding AgToothbrush and process for producing such a toothbrush
USRE44819Apr 8, 2004Apr 1, 2014Procter & Gamble Business Services Canada CompanyToothbrush
USRE45141Dec 20, 2002Sep 23, 2014Trisa Holding AgToothbrush and process for producing such a toothbrush
DE1233821B *Oct 2, 1964Feb 9, 1967Du PontZahnbuerste
EP0761124A1 *Mar 25, 1992Mar 12, 1997SmithKline Beecham Consumer Healthcare GmbHToothbrush with resiliently flexible head
EP0990401A1 *Aug 22, 1996Apr 5, 2000SmithKline Beecham Consumer Healthcare GmbHToothbrush
EP1057425A2 *Mar 25, 1992Dec 6, 2000SmithKline Beecham Consumer Healthcare GmbHToothbrush with resiliently flexible head
EP1077623A1 *Jan 27, 1999Feb 28, 2001Vernon WilsonToothbrush device
EP1134004A3 *Mar 25, 1992Feb 12, 2003SmithKline Beecham Consumer Healthcare GmbHToothbrush with resiliently flexible head
EP1240846A2 *Aug 22, 1996Sep 18, 2002SmithKline Beecham Consumer Healthcare GmbHTootbrush
EP1764011A1 *Sep 16, 2005Mar 21, 2007Trisa Holding AGHandle for a toothbrush
WO1992017093A1 *Mar 25, 1992Oct 15, 1992Lingner & Fischer GmbhToothbrush with resiliently flexible head
WO1997007707A1 *Aug 22, 1996Mar 6, 1997Hans HalmToothbrush
WO1998002062A1 *May 26, 1997Jan 22, 1998Alfred JurtToothbrush
WO1998046103A1 *Apr 6, 1998Oct 22, 1998Procter & GambleToothbrush with both stationary and moving tufts
WO1999037180A1 *Jan 27, 1999Jul 29, 1999Vernon WilsonToothbrush device
WO2005039858A1 *Oct 22, 2004May 6, 2005Glaxosmithkline Consumer HealtProcess for making toothbrushes
WO2009073955A1 *Nov 14, 2008Jun 18, 2009Brushpoint Innovations IncPowered toothbrush with flexible head
Classifications
U.S. Classification15/167.1
International ClassificationA46B7/06
Cooperative ClassificationA46B2200/1066, A46B7/06, A46B5/0025
European ClassificationA46B5/00B1, A46B7/06