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Publication numberUS669402 A
Publication typeGrant
Publication dateMar 5, 1901
Filing dateApr 21, 1900
Priority dateApr 21, 1900
Publication numberUS 669402 A, US 669402A, US-A-669402, US669402 A, US669402A
InventorsCarl Roese
Original AssigneeCarl Roese
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 669402 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)

m m 5, r. a M d. o t n e t a P H. .S EU SB 0B RH .T Co 0 T 2. 0. A. 9 6 6 0. N

J [Application led Apr. 21, 1900,;

(No Model.)





SPECIFICATION forming part of Letters Patent No. 669,402, dated March 5, 1901.

Application filed April 21, 1900.

To al?, whom, t may concern:

Be it known that I, CARL RSE, a subject of the King 0f Bavaria, and a resident of Leipsic, Kingdom of Saxony, German Empire, have invented new and useful Improvements in Tooth-Brushes, of which the following is a specification.

This invention consists in a tooth-brush having at its foremost end a strong and pointed cone 0f bristles which is so arranged obliquely to the brush-back that a part of it projects beyond the foremost end of the latter, so that the said cone, besides its duty of eecting an easy and thorough cleaning of the holes and the gap in the teeth, will allow a thorough cleaning of the sides and of the rear surfaces of the hindmost molars, which cleaning cannot be effected bya tooth-brush of ordinary construction.

Figure 1 shows a tooth-brush according to this construction in side View. Fig. 2 shows a row of teeth in plan with the brush applied to it for cleaning said rear surface.

The brush consists in the usual manner of a handle a, with an adjacent brush-back b, from the one surface of which the bunches of bristles c stand forth. At the foremost end of said brush the bunches of bristles are so arranged in an oblique position to the brushback and are so shaped that they form a strong and pointed cone of bristles d, a part of which cone projects beyond the foremost or outer end of the brush-back b. This obliquely-arranged cone of bristles d may be made by inserting into the brush-back bundles with bristles of equal length, but longer than the other bundles of bristles constitutseriai No. 13,723. (No moda.)

ing the brush, which longer bundles are hereinafter shaped into a cone by cutting or the like or it may be made by inserting into the brushback bunches of different length of bristles, the ends of the so-united bundles forming' the desired cone. The strong and pointed'cone of bristles thus obliquely arranged and projecting beyond the outer end of the brush-back will not only serve to enter into the tooth holes and gaps for cleaning purposes, but it will also reach the rear surface of the hindlnost molars, as illustrated in Fig. 2 of the annexed drawings. In order t0 obtain a good effect with the said cones, it will be well to insert the single bunches which constitute the bristle-cone as closely together as possible.

I am Well aware that tooth-brushes are known and used which are provided with cone-shaped extensions on the surface formed by the bristles ends, and therefore I do not claim, broadly, such a brush; but

What I claim as my invention is A tooth-brush with a cone of bristles at the foremost end of the brush, which cone is arranged obliquely to the brush-back and a part of which projects beyond the foremost end of said brush-back, substantially as herein described.

In testimony that I claim the foregoing as myinvention I have signed my name, in presence of two Witnesses, this 7th day of April,


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4457039 *May 17, 1982Jul 3, 1984Massari BToothbrush with anatomically designed handle
US5398368 *Mar 23, 1994Mar 21, 1995Elder; Sherri A.Toothbrush
US5628082 *Mar 22, 1995May 13, 1997Colgate-Palmolive CompanyToothbrush with improved efficacy
US5742972 *Feb 21, 1997Apr 28, 1998Gillette Canada Inc.Toothbrush
US6006394 *Jun 19, 1997Dec 28, 1999Gillette Canada Inc.Toothbrush
US6018838 *Apr 11, 1997Feb 1, 2000Nowack; Duane C.Toothbrush
US6065176 *Mar 3, 1999May 23, 2000Watanabe; TakayukiToothbrush
US6219874Jul 12, 1995Apr 24, 2001The Procter & Gamble Co.Resiliently flexible bristle bearing head toothbrush
US6308367Oct 23, 1998Oct 30, 2001Gillette Canada CompanyToothbrush
US6314605Aug 1, 1997Nov 13, 2001The Procter & Gamble CompanyToothbrush
US6408476Jan 17, 1997Jun 25, 2002The Procter & Gamble CompanyToothbrush with elastomer filled flexible head
US6514445Dec 12, 1997Feb 4, 2003The Procter & Gamble CompanyBrush making
US7707676Jun 30, 2006May 4, 2010The Procter & Gamble CompanyToothbrush
US7962992Dec 23, 2005Jun 21, 2011The Procter & Gamble CompanyToothbrush with elastomer filled flexible head
US8584299Jul 25, 2007Nov 19, 2013The Procter & Gamble CompanyElectric toothbrushes
US8943634May 2, 2012Feb 3, 2015Water Pik, Inc.Mechanically-driven, sonic toothbrush system
US8955186Oct 15, 2013Feb 17, 2015The Procter & Gamble CompanyElectric toothbrushes
US9144477Dec 23, 2014Sep 29, 2015Water Pik, Inc.Mechanically-driven, sonic toothbrush system
US9468511Mar 15, 2013Oct 18, 2016Water Pik, Inc.Electronic toothbrush with vibration dampening
US20040200016 *Apr 9, 2003Oct 14, 2004The Procter & Gamble CompanyElectric toothbrushes
US20050189000 *Dec 23, 2004Sep 1, 2005Cacka Joe W.Flosser with motor integrated with vibrating head
US20060037161 *Jul 20, 2005Feb 23, 2006Gc CorporationToothbrush
US20060242778 *Jun 30, 2006Nov 2, 2006Solanki Sanjay AToothbrush
US20070130705 *Oct 31, 2006Jun 14, 2007Chan John GElectric toothbrushes
US20090025162 *Jul 25, 2007Jan 29, 2009John Geoffrey ChanElectric toothbrushes
US20110185520 *Jul 25, 2007Aug 4, 2011John Geoffrey ChanElectric toothbrushes
USD370564Mar 22, 1995Jun 11, 1996Colgate-Palmolive CompanyToothbrush
USD380903Apr 19, 1995Jul 15, 1997Colgate-Palmolive CompanyToothbrush
DE102006058862A1 *Dec 13, 2006Nov 20, 2008Ali AghakhaniTooth brush head for electric tooth brush, has tooth brush surface, where distance between electrical tooth brush surface and rotational axis is increased, and tooth brush head exhibits rotational movement for electrical tooth brush
WO1994009678A1 *Oct 29, 1993May 11, 1994Gillette Canada Inc.Toothbrush
International ClassificationA46B9/04
Cooperative ClassificationA46B2200/1066, A46B9/04
European ClassificationA46B9/04