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 numberUS2225331 A
Publication typeGrant
Publication dateDec 17, 1940
Filing dateOct 18, 1938
Priority dateOct 18, 1938
Publication numberUS 2225331 A, US 2225331A, US-A-2225331, US2225331 A, US2225331A
InventorsCharles M Campbell
Original AssigneePauline Campbell
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Rubber bristled toothbursh
US 2225331 A
Abstract  available in
Images(1)
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

Dec. 17, 19- L c. M. CAMPBELL 2,225,331

RUBBER BRISTLED TOOTHBBUSH Filed Oct. 18, 19:58

y .1 I EL 2 {9F I INVENTOR Patented 17, 1940 PATENT OFFICE RUBBER nms'rmnroornnausn Qharles M. Campbell, New York, N. Y., assignmto Pauline Campbell, New York, N. Y.

Application October 18, was, sci-m No. 235,587

. '1 Claim. '(01. 15-188) This invention has for its objects to provide an economical, efiective, convenient and sanitary toothbrush, suitable not only for cleansing of the enamel surfaces of the teeth, but for mas- 5 sage of the gums without abrasion, and to provide readily replaceable rubber brush elements without the necessity for the use of stiileners, clamps and the like which has marked the practice heretofore. A toothbrush'embodying my 10 invention is especially suitable for childrens use,

providing as it does an efiective cleaning instrument, yet one incapable of abrading tender gums. Specifically, my invention consists of a handle wherein a rubber bristle pad is remov- 5' ably inserted, the whole constructed in such a manner that neither handle nor bristle pad nor the means of attaching said pad contain holes, channels, or the like for the unsanitary accumulation of foreign matter.

20 The method whereby these objects are accomplished, and the additional object of ease and economy of manufacture attained, will be readily apparent from the following description and by reference to the accompanying drawing:

25 Fig. 1 is a plan view of my toothbrush showing clearly its general appearance free from any slots, holes or other apertures, such openingsbeing unsanitary accumulators of foreign matter. Ibis figure shows in particular the handle A, the

30 bristle pad B, and indicates the undercut walls 0. The bristle structure in this figure and in Fig. 2 is the small three row child's size.

Fig. 2 is a longitudinal section of my brush along the line 2-2 of Fig. 1, showing a receptacle 5 having undercut bevelled walls C in said handle A with a bristle pad 13 whose base is bevelled complementary to the bevel of said walls C inserted therein. Fig. 3 is a plan view of the adult size tooth 4 brush embodying my invention. The bristle pad B thereof is larger, and has one more row of bristles, than the child's size shown in Figs. 1

and 2.

Fig. 4 is an enlarged plan view of the receptacle D in said handle A indicating a bevel undercutting of its walls C around its entire unbroken periphery, and showing plan convergence of its sides.

Fig. 5 is a cross-section on the line 5-5 of 5 Fig. 4 revealing clearly the bevel undercutting of the walls C of the receptacle D.

Fig. 6 is an elevation 01' said rubber bristle pad B, the base E of which exactly conforms to the interior dimensions of said receptacle D. 55 Fig. '7 is a cross-section on the line 1-1 of receptacle D.

Fig. 8 showing the bevel of said base E of said pad B complementary to the undercut bevel of said walls C of said receptacle D.

Fig. 8 is anelevation of the bristle pad 3 showing an alternate form of bristle construction 5 r with wedge shaped bristle ends particularly adapted to gum massage.

Fig. 9 is a cross-section on the line 9@ of Fig. 8 better revealingthe alternate gum massage bristle shape. 10

My toothbrush thus consists of a handle A of suitable dimensions having at one end a receptacle D with bevelled undercut walls 0 where by the area of the bottom of said receptacle D is greater than the areaof its opening, and a ilexible bristle pad B, the base E of said pad conforming exactly to the inside dimensions of said In the preferred embodiment of my invention the receptacle D is shown with plan convergent sides and uniform undercutting. It is to be understood that this embodiment is used by way of illustration only, and not as a limitation.

The user of my toothbrush is thus enabled by my invention to insert a pad into the receptacle by sliding the narrow end of said pad through the wide end of said receptacle, into firm 'contact with the narrow end of said receptacle, and then, by the natural elasticity of said pad to spring the wide end of said pad into position so within the wide end of said receptacle. The said pad is thus in firm and uniform contact with said receptacle around its entire periphery, affording no crevices for the lodging of foreign matter, and holding said pad securely against accidental dislodgement in ordinary use. Moreover, the user of my tooth brush may remove the used pad at any time by a sharp upward pull on the rubber bristles, enabling him to insert a fresh pad at his convenience. 40 The manufacturer of my toothbrush is enabled by my invention to supply a superior product to the trade at a very low cost since the two elements of my brush are so designed as to be adapted to molding. When my invention is embodied as shown, I prefer that the handle be molded of some suitable plastic material, pref erably Celluloid, and that the bristle pad be molded of rubber. I do not limit myself in any way to the precise embodiment of my invention here described, and, in particular, disclaim the form or shape of the bristle structure shown, as distinct from the form or shape of the bristle pad base which conforms to the disclosed construction of the receptacle in the handle. I am aware therein, and holding means to secure removably said flexible base to said head, said holding means consisting of the walls 0! said receptacle continuously undercut around the periphery of the same and adapted to engage the flexible base when the latter is inserted into said receptacle. the longitudinally opposite walls of said receptacle being convergent in plan to facilitate insertion and withdrawal or said flexible base into and from said receptacle.

CHARLES M. CAMPBELL.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2476201 *Aug 1, 1945Jul 12, 1949Eugenia Ligoure AliceSponge rubber insert for toothbrush heads
US2592296 *Apr 1, 1950Apr 8, 1952Louis F KutikMethod of and apparatus for making brushes
US2622260 *Oct 11, 1948Dec 23, 1952Marvin W VanniceToothbrush with removable head
US3302230 *Oct 20, 1965Feb 7, 1967Poppelmann AkeToothbrush
US4081877 *Sep 23, 1976Apr 4, 1978Ben VitaleGum massaging implement
US5040260 *Mar 16, 1989Aug 20, 1991Michaels George GTooth cleaning and polishing device
US5052070 *Sep 20, 1988Oct 1, 1991Alkinco (Alfred Klugmann International Corporation)Hairbrush
US5269040 *Feb 11, 1991Dec 14, 1993Jeff SwitallBrush
US5396679 *Feb 7, 1994Mar 14, 1995Steven R. BrownToothbrush with replaceable brush insert
US5664278 *Jul 9, 1996Sep 9, 1997Reisman; MorrisVegetable and fruit brush
US5737792 *Sep 30, 1996Apr 14, 1998Quigless; KirkDispensable-head manual toothbrush and dispenser combination
US5930860 *Mar 27, 1996Aug 3, 1999Shipp; Anthony D.Prophy bristle toothbrush
US6895624Mar 7, 2002May 24, 2005Ultradent Products, Inc.Powered tongue cleaning device
US6962160 *Sep 30, 2002Nov 8, 2005Geka Brush GmbhMascara brush
US6996870Apr 1, 2002Feb 14, 2006Colgate-Palmolive CompanyContouring toothbrush head
US7111352 *Oct 14, 2004Sep 26, 2006Shu-Feng YuCleaning brush structure with replaceable brush hair plate
US7143462 *Jun 18, 2004Dec 5, 2006Colgate-Palmolive CompanyOral care implement
US7322067Dec 4, 2006Jan 29, 2008Colgate-Palmolive CompanyOral care implement
US7594293Oct 28, 2005Sep 29, 2009Colgate-Palmolive Co.Oral care implement
US7707676Jun 30, 2006May 4, 2010The Procter & Gamble CompanyToothbrush
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
US7934284Feb 11, 2003May 3, 2011Braun GmbhToothbrushes
US7941886Sep 19, 2003May 17, 2011Braun GmbhToothbrushes
US7950100Oct 31, 2007May 31, 2011Colgate-Palmolive CompanyOral care implement
US7954191Apr 9, 2007Jun 7, 2011Colgate-Palmolive CompanyToothbrush
US7958589Jun 12, 2009Jun 14, 2011The Gillette CompanyToothbrushes
US7962991Aug 14, 2006Jun 21, 2011Colgate-Palmolive CompanyToothbrush
US7975343Jun 21, 2006Jul 12, 2011Colgate-Palmolive CompanyToothbrush
US7975344Jul 6, 2007Jul 12, 2011The Gillette CompanyToothbrush head
US7975346Mar 31, 2010Jul 12, 2011Colgate-Palmolive CompanyOral care implement
US8042214Sep 16, 2009Oct 25, 2011Colgate-Palmolive CompanyOral care implement
US8042217Nov 2, 2004Oct 25, 2011Colgate-Palmolive CompanyToothbrush and method of making the same
US8060970Mar 11, 2010Nov 22, 2011The Procter & Gamble CompanyToothbrush
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
US8156600Sep 9, 2008Apr 17, 2012The Gillette CompanyGum massaging oral brush
US8201298Feb 9, 2007Jun 19, 2012Colgate-Palmolive CompanyToothbrush with low profile head
US8281448Oct 3, 2007Oct 9, 2012Colgate-Palmolive CompanyOral care implement having one or more moving sections
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
US8448287Jul 14, 2011May 28, 2013Mcneil-Ppc, Inc.Replaceable toothbrush head
US8522386May 26, 2011Sep 3, 2013Colgate-Palmolive CompanyOral care implement
US8523888Dec 18, 2006Sep 3, 2013Colgate-Palmolive CompanyOral care implement
US8528148Jun 7, 2011Sep 10, 2013The Gillette CompanyToothbrush head
US8549693Apr 20, 2011Oct 8, 2013Gruber, LlcTooth cleaning device
US8561247Jun 17, 2011Oct 22, 2013Colgate-Palmolive CompanyOral care implement
US8578546Oct 2, 2012Nov 12, 2013Colgate-Palmolive CompanyOral care implement having one or more moving pieces
US8695149Apr 1, 2011Apr 15, 2014Braun GmbhToothbrushes
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
USRE44819Apr 8, 2004Apr 1, 2014Procter & Gamble Business Services Canada CompanyToothbrush
Classifications
U.S. Classification15/188, 15/176.5, 15/167.1
International ClassificationA46B9/04
Cooperative ClassificationA46B9/005, A46B2200/1066
European ClassificationA46B9/00E