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 numberUS2161349 A
Publication typeGrant
Publication dateJun 6, 1939
Filing dateJan 6, 1937
Priority dateJan 6, 1937
Publication numberUS 2161349 A, US 2161349A, US-A-2161349, US2161349 A, US2161349A
InventorsGilbert E Hadden
Original AssigneeGilbert E Hadden
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Tooth brush
US 2161349 A
Abstract  available in
Images(1)
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

G. E. HADDEN TOOIH BRUSH June 6, 1939.

Filed Jan. 6, 19157 Patented June 6, 1939 -UN1TED STATES PATENT OFFICE 2,161,349 TOO'IH BRUSH Gilbert E. Hadden, Chicgoi m. Apjlication January s, 1937, Serial 119,328

2 Claims.

This invention relates 150 brushes particularly designed for cleaning the teeth und the object of the invention.is to provide a brush in which the bristles aresoarrariged that the teeth of the user 5'.? Will be efiectively cleaned when the scrubbing 103the gum margins of the teeth will be efiectively cleaned.

Another object of the invention is to provide a toothbrush wherein the entire surfaces of the teeth including the inner surfaces as we1l as the laouter surfaceswill be efl'ectively cleaned by its It is a. we ll known faet that thefodth brushes in common use have a tendency to push the food in separate sockets. It is to be understood that a between the teeth instead of removing it; thus causing decay and the formation f pyorrhea pockets. Therefore, it is the purpose of my invention to eliminate the defects of formertooth brushes and to accomplish the afore-mentioned objects by means of the construction shown in the accompx'mying drawing, in which:

Figure 1 is a perspective of a tooth brush embodying my inventio'n;

Figure 2 is a bottom plan of a brush head embodying my invention;

Figure 3 is a vertical section of a brush head embodying my invention showing the same in use when a slight -pressure has been applied thereto;

Figure 4 is a. vertical section illustrating the 'position of the briStles when a sweeping backward and forward motion has been applied to the brush;

Figure 5 is a section illustrating the position 0f the bristles when an up and down motion has been applied to the brush; and

' Figure 6 is a. perspective 015 a. group of bristle tufts embodying myinvention secured in a single socket.

On the drawing, in which like reference characters indicate like parts on the views thereof, I indicates the brush handle herein shown as provided With two brush heads 2 which are laterally ofiset and also curved outwardly away from the handle, as is shown a1; 3 and 4, Figures 1 and 2, for a purpose which will later appear.

In Figure 2, I have shown the brush head as provided wlth three groups of brisble tufts 5, shown therein a.s consisting of six tufts each secured single group of tufts would be suflicient for a small brush, or a greater number than three groups might be empl0yed if desired. Likewise, the number of tufts constituting a group might be greater er lass than six without departing from the spirit of my invention.

As is shown in the drawing, the free outer face of a tuftgroupis so'formed tha.t 11: provides a cavity 6 which is substantially the form of an inverteid cone With the periphery of the cone base consisting of a ithin line oi bristles l, which in use'enter the interproximal spaces and remove any food particles which may have lodged there.

In Figure 3 I haveshown the position of the bristles when applied to the teeth, the teeth T being illusttated diagramm'atically, and a slight pressure exerted; it will be seen that-the cavity in the biistle' tuft g roup is of such form that the bristles will bear against substantially the entire outer surface of the teeth with the peripheral edge of the tuft group entering the interproximal spaces, thereby forcing out any particles which may have lodged there. When a circular motion is applied to the brush, it is apparent that a thorough cleaning, not; only of the outer surface of the teeth, but of the spaces between adjacent teeth will take place.

In cleaning the outer surfaces of the teeth on the right hand side of the upper jaw, the brush is held in such position that the head extends upwardly and inwardly toward the oral cavity, the inclination cf the brush head relatively to the handle aiding materially in holding the bristles in c1ose engagement With the surface of the teeth.

Whilel have shown the bristles a.s applied to the outer surfaces of the teeth, it is apparent that a thorough cleaning cf the inner surfaces of the teeth will take place when the brush is applied thereto.

The various positions in which the brush can be he1d and the inclination of the brush head 110 the handle facilitate its use, as is readily apparent, and the efiectiveness of the the cleaning action is partly due to the fact that it may be readily positioned to reach the teeth which are not readi1y accessible for cleaning by the ordinary type of brush now in common use. The fact that the brush heads are offset from the handle is of advantage since, when in use, the handle will tend to hold the cheek away from the teeth and thus facilitate cleaning.

In Figure 4 I ha.ve shown the action of the bristles when the brush hea.d is given the ordinary back and forth sweeping motion for cleaning the teeth. It will be seen that during such a motion the parts 9 of the bristles are forced into the inbristles When an up and down action is applied;

t the brush head. When moving downward to clean the teeth of the upper jaw the part marked H) willbe pushed back and spread. while the part II effects a sweeping action, thus clea.n- 1'ng the gum margins. When the direction of motion is reversed, that is when an upward. mo

tion is applied to the brush head to clean the teeth in the lower jaw, the action of the bristles parts II] and I I will be reversed but the cleaning result will be the same.

Since the three motions of the brush employed by persons in brushing their teethare the circular motion, the backward and forward motion and the upward a n d downward motion, it is armarent that my bru sh is so constructed that, under all conditions of use, the'teeth will be effectively cleaned and all debris removed from the interproximal spaces and from the gingival or free marginal spacesof the gum.

I1; is tobe noted that while in Figure 2 the bristle tuf1zs are showr; as secured in separate sockets, in Figure 6 and sectional views they are all shown as secured in a Single socket, it being understood that the sameresult is obtained in both cases. V

I1; is likewise to be pnc1erstood that while I have illustrated a, brush having two brush heads, my invention is equally applicable to a brush employing on1y one brush head.

I am aware that brushes have previously been designed wherein the center of the bristle tuft is shorter than the outer edges but these bristle claim as new and desire to secure by Letters Pater'1t is:

l. An implement for cleaning the tooth 013 a human being comprising a, brush head having a group of bristles secured thereto, the free end of said bristle group being recessed to form a cone shaped cavity the all of which is substantia1ly coritinuous and of substantially the size and shape of one face of a Single tooth the periphery of the base f the cone being constituted by a thin 'line of bristles to engage the base of the tooth anal to extend into th e adjacent interproximal spaces.

2. An implement for cleaning the teeth cf a human being comprising abrush head having a plurality of separated groups of bristle tufts secured thereto, each of seid groups, 0f tufts having its unsecured end recessed to form a cone shaped cavity of a size and. shape to conform subv stantially t0 anal engage one entire face only of a tooth to be cle-ned, the periphery of the base 0f Ehe c0ne being constituted by a thin 1ine of bristles so. engage the base of thetooth and to extend into adjacent interproximal spaces.

GILBERTE. I-IADDEN.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4738001 *Jun 9, 1986Apr 19, 1988Shipp Anthony DCanine and feline toothbrush
US5242235 *Aug 5, 1992Sep 7, 1993Jianxing LiToothbrush
US5522109 *Dec 9, 1994Jun 4, 1996Chan; Boon SuDouble-headed toothbrush
US6018838 *Apr 11, 1997Feb 1, 2000Nowack; Duane C.Toothbrush
US6035480 *Jun 24, 1996Mar 14, 2000Pianetti; FrancescoToothbrush suitable for preventing the formation of dental plaque and of tartar
US6041468 *Mar 12, 1998Mar 28, 2000Colgate-Palmolive CompanyProphy toothbrush
US7089621Jun 18, 2004Aug 15, 2006Colgate-Palmolive CompanyToothbrush
US7143462Jun 18, 2004Dec 5, 2006Colgate-Palmolive CompanyOral care implement
US7146675 *Apr 14, 2004Dec 12, 2006Braun GmbhHandheld toothbrush
US7273327Nov 15, 2004Sep 25, 2007Colgate-Palmolive CompanyOral care implement
US7322067Dec 4, 2006Jan 29, 2008Colgate-Palmolive CompanyOral care implement
US7594293Oct 28, 2005Sep 29, 2009Colgate-Palmolive Co.Oral care implement
US7721376Dec 23, 2004May 25, 2010Colgate-Palmolive CompanyOral care implement
US7725980Dec 15, 2004Jun 1, 2010Colgate-Palmolive CompanyOral care implement
US7836539May 5, 2005Nov 23, 2010Colgate-Palmolive CompanyOral care implement
US7841041May 8, 2006Nov 30, 2010Colgate-Palmolive CompanyOral care implement
US7845042May 5, 2005Dec 7, 2010Colgate-Palmolive CompanyOral care implement
US7908699Dec 23, 2004Mar 22, 2011Colgate-Palmolive CompanyOral care implement
US7950100Oct 31, 2007May 31, 2011Colgate-Palmolive CompanyOral care implement
US7954191Apr 9, 2007Jun 7, 2011Colgate-Palmolive CompanyToothbrush
US7962991Aug 14, 2006Jun 21, 2011Colgate-Palmolive CompanyToothbrush
US7975343Jun 21, 2006Jul 12, 2011Colgate-Palmolive CompanyToothbrush
US7975346Mar 31, 2010Jul 12, 2011Colgate-Palmolive CompanyOral care implement
US8042214Sep 16, 2009Oct 25, 2011Colgate-Palmolive CompanyOral care implement
US8079110May 26, 2010Dec 20, 2011Colgate-Palmolive CompanyOral care implement
US8091170May 6, 2010Jan 10, 2012Colgate-Palmolive CompanyOral care implement
US8151397Jun 26, 2008Apr 10, 2012Colgate-Palmolive CompanyOral care implement having flexibly supported cleaning elements extending in opposite directions
US8281448Oct 3, 2007Oct 9, 2012Colgate-Palmolive CompanyOral care implement having one or more moving sections
US8393042Oct 9, 2009Mar 12, 2013Colgate-Palmolive CompanyOral care implement
US8522386May 26, 2011Sep 3, 2013Colgate-Palmolive CompanyOral care implement
US8523888Dec 18, 2006Sep 3, 2013Colgate-Palmolive CompanyOral care implement
US8550736Mar 4, 2010Oct 8, 2013Colgate-Palmolive CompanyOral care implement
US8561247Jun 17, 2011Oct 22, 2013Colgate-Palmolive CompanyOral care implement
US8578546Oct 2, 2012Nov 12, 2013Colgate-Palmolive CompanyOral care implement having one or more moving pieces
US8628263Sep 10, 2007Jan 14, 2014Colgate-Palmolive CompanyOral care implement
US8800091Aug 13, 2013Aug 12, 2014Colgate-Palmolive CompanyOral care implement
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
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
US9167888Jul 10, 2014Oct 27, 2015Colgate-Palmolive CompanyOral care implement having flexibly supported cleaning elements extending in opposite directions
US9271564Sep 19, 2014Mar 1, 2016Colgate-Palmolive CompanyOral care implement having one or more moving sections
US9545148Sep 16, 2014Jan 17, 2017Colgate-Palmolive CompanyOral care implement
US20030033680 *Aug 8, 2002Feb 20, 2003Unilever Home & Personal Care Usa, Division Of Conopco, Inc.Electric toothbrush
US20040134002 *Jul 22, 2003Jul 15, 2004Kerrhawe SaDental brush for use on a rotary dental hand piece
US20050000048 *Jun 18, 2004Jan 6, 2005Colgate-Palmolive CompanyToothbrush
US20050011031 *Apr 14, 2004Jan 20, 2005Petra AnsariHandheld toothbrush
US20050069372 *Nov 15, 2004Mar 31, 2005Colgate-PalmoliveOral care implement
US20060052806 *Oct 28, 2005Mar 9, 2006Colgate-Palmolive CompanyOral care implement
US20090113650 *Sep 19, 2006May 7, 2009Flek Jr JaroslavToothbrush
US20100160856 *Mar 4, 2010Jun 24, 2010Colgate-Palmolive CompanyOral Care Implement
US20110047736 *Aug 26, 2009Mar 3, 2011Colgate PalmoliveOral Care Implement Having Diverging Cleaning Elements
US20140310901 *Oct 25, 2012Oct 23, 2014Glaxosmithkline Consumer Healthcare Gmbh & Co. KgToothbrush
USD775838 *Jan 5, 2015Jan 10, 2017Joann M. LawsToothbrush
WO1997001297A1 *Jun 24, 1996Jan 16, 1997Francesco PianettiToothbrush suitable for preventing the formation of dental plaque and of tartar
WO2007038905A1 *Sep 19, 2006Apr 12, 2007Flek Jaroslav SrToothbrush
WO2015069219A1 *Nov 5, 2013May 14, 2015Colgate-Palmolive CompanyOral care implement
WO2015069220A1 *Nov 5, 2013May 14, 2015Colgate-Palmolive CompanyOral care implement
Classifications
U.S. Classification15/167.1, 15/106
International ClassificationA46B9/04
Cooperative ClassificationA46B9/04
European ClassificationA46B9/04