US803995A - Tooth-brush. - Google Patents

Tooth-brush. Download PDF

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Publication number
US803995A
US803995A US26459105A US1905264591A US803995A US 803995 A US803995 A US 803995A US 26459105 A US26459105 A US 26459105A US 1905264591 A US1905264591 A US 1905264591A US 803995 A US803995 A US 803995A
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United States
Prior art keywords
brush
tooth
head
bristles
side
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US26459105A
Inventor
William S Davenport
Original Assignee
William S Davenport
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Application filed by William S Davenport filed Critical William S Davenport
Priority to US26459105A priority Critical patent/US803995A/en
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Publication of US803995A publication Critical patent/US803995A/en
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Application status is Expired - Lifetime legal-status Critical

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    • AHUMAN NECESSITIES
    • A46BRUSHWARE
    • A46BBRUSHES
    • A46B2200/00Brushes characterized by their functions, uses or applications
    • A46B2200/10For human or animal care
    • A46B2200/1066Toothbrush for cleaning the teeth or dentures

Description

PATENTED NOV. 7, 1905.

W. S. DAVENPORT. TOOTH BRUSH.

APPLICATION FILED JUNE 10,1905.

85. WW3, 4530M;

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WILLIAM S. DAVENPORT, OF PARIS, FRANCE.

TOOTH-BRUSH.

Specification of Letters Patent.

Patented Nov. 7, 1905.

Application filed June 10, 1905. Serial No. 264,591.

To all whom, it may concern.-

Be it known that I, WILLIAM S. DAVENPORT, a citizen of the United States, residing at the city of Paris, in the Republic of France, have invented certain new and useful Improvements in Tooth-Brushes, of which the following is a specification.

The object of my invention is to provide a tooth-brush which will reach and cleanse in one operation of brushing what is known as the valley or depression on the top of the larger tooth and also the side of the teeth down to the gum, either on the inside or the outside of the teeth.

Various constructions and formations of the bristles of tooth-brushes have heretofore been used, which are designed to reach the valley of the teeth by forming the face of the brush with centrally-projecting tufts. proved construction of tooth-brush the ends of the bristles along one side of the brush are designed and formed to enter the depression on the top of the teeth, while the ends of the bristles on the other side abrade against the sides of the teeth and reach down to the gum.

In the accompanying drawings, Figure 1 is a side view of the head or bristle portion of the brush, together with the handle. Fig. 2 is the same as Fig. l, the head being in central longitudinal section. Fig. 3 is a crosssection at a; w of Fig. 1 looking toward the handle. Fig. 4 is a cross-section at w m, Fig. 1, looking toward the end of the head, and Fig. 5 is a cross-section showing the head of the brush and its application to the top or crown and side of a tooth.

In the drawings the head of my improved tooth-brush is designated by the letter A and the handle by the letter B. Any desired num-.

ber of rows of bristles crosswise of the head may be used and will depend on the size of the brush. I prefer four rows, as shown in In my imthe drawings. In the head A the outer rows of bristles a a are of greater length. The tufts of bristles on the outer rows end in a cone terminating in a point at d and are longer than those of the inner rows. The interior rows of bristles c 0 are cut away on the inner side, so as to incline toward the center and form, with the cone-shaped outer tufts, a sharp and deep valley lengthwise of the head. At the end of the head opposite to the handle-B the terminal bristles extend to the full length of the side cones cl (Z and form a cross-wall of tufts at b, which terminates and closes the central valley at that point.

It will be seen that the longer bristles on the outer row of one side of the head will reach the depressed portion on the crown or top of the teeth, while the row of bristles on the other side of the head will reach down the side of the tooth t to the gum at g and dislodge any matter that may lie at that point. This cleansing is increased by the pointed ends of the conical tufts (Z.

Having described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. A tooth-brush comprising a handle and

US26459105A 1905-06-10 1905-06-10 Tooth-brush. Expired - Lifetime US803995A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US26459105A US803995A (en) 1905-06-10 1905-06-10 Tooth-brush.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US26459105A US803995A (en) 1905-06-10 1905-06-10 Tooth-brush.

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US803995A true US803995A (en) 1905-11-07

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US26459105A Expired - Lifetime US803995A (en) 1905-06-10 1905-06-10 Tooth-brush.

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Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3678528A (en) * 1969-05-07 1972-07-25 Johan Arend Frederik Haije Tooth brush
US4979782A (en) * 1988-06-15 1990-12-25 Coronet-Werke Heinrich Schlerf Gmbh Process and apparatus for production of bristle products
US5165761A (en) * 1991-12-30 1992-11-24 The Procter & Gamble Company Method of making improved toothbrush having multi-level tufts with substantially uniformly rounded bristle ends in each tuft
US5224763A (en) * 1991-12-30 1993-07-06 The Procter & Gamble Company Method of fastening bristle tufts to bristle carrier
US5305489A (en) * 1990-08-28 1994-04-26 Lage Gregg L Ergonomic topographic toothbrush
US5511275A (en) * 1990-06-19 1996-04-30 The Procter & Gamble Company Toothbrush exhibiting three-dimensional bristle profile and end rounded bristles for improved interproximal cleaning without increasing gum irritation
US5758383A (en) * 1995-12-29 1998-06-02 Colgate-Palmolive Company Contouring toothbrush head
US5926897A (en) * 1994-12-01 1999-07-27 The Procter & Gamble Company Toothbrush having bristles for interproximal cleaning
US20020152570A1 (en) * 1995-12-29 2002-10-24 Douglas Hohlbein Contouring toothbrush head
US20050166344A1 (en) * 2002-09-20 2005-08-04 Colgate-Palmolive Company Oral care implement
US7908699B2 (en) 2001-07-03 2011-03-22 Colgate-Palmolive Company Oral care implement
US8393042B2 (en) 2002-08-09 2013-03-12 Colgate-Palmolive Company Oral care implement
US8561247B2 (en) 2002-08-09 2013-10-22 Colgate-Palmolive Company Oral care implement
US8800093B2 (en) 2002-08-09 2014-08-12 Colgate-Palmolive Company Oral care implement
US8806695B2 (en) 2002-08-09 2014-08-19 Colgate-Palmolive Company Oral care implement having flexibly supported cleaning elements extending in opposite directions
US8876221B2 (en) 2002-08-09 2014-11-04 Colgate-Palmolive Company Oral care implement
US8990996B2 (en) 2002-08-09 2015-03-31 Colgate-Palmolive Company Toothbrush

Cited By (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3678528A (en) * 1969-05-07 1972-07-25 Johan Arend Frederik Haije Tooth brush
US4979782A (en) * 1988-06-15 1990-12-25 Coronet-Werke Heinrich Schlerf Gmbh Process and apparatus for production of bristle products
US5511275A (en) * 1990-06-19 1996-04-30 The Procter & Gamble Company Toothbrush exhibiting three-dimensional bristle profile and end rounded bristles for improved interproximal cleaning without increasing gum irritation
US5305489A (en) * 1990-08-28 1994-04-26 Lage Gregg L Ergonomic topographic toothbrush
US5165761A (en) * 1991-12-30 1992-11-24 The Procter & Gamble Company Method of making improved toothbrush having multi-level tufts with substantially uniformly rounded bristle ends in each tuft
US5224763A (en) * 1991-12-30 1993-07-06 The Procter & Gamble Company Method of fastening bristle tufts to bristle carrier
US6178583B1 (en) 1994-12-01 2001-01-30 The Procter & Gamble Company Toothbrush having bristles for interproximal cleaning
US5926897A (en) * 1994-12-01 1999-07-27 The Procter & Gamble Company Toothbrush having bristles for interproximal cleaning
US6073299A (en) * 1995-12-29 2000-06-13 Colgate-Palmolive Company Contouring toothbrush head
US5758383A (en) * 1995-12-29 1998-06-02 Colgate-Palmolive Company Contouring toothbrush head
US6314606B1 (en) 1995-12-29 2001-11-13 Colgate-Palmolive Company Contouring toothbrush head
US6442787B2 (en) 1995-12-29 2002-09-03 Colgate-Palmolive Company Contouring toothbrush head
US20020152570A1 (en) * 1995-12-29 2002-10-24 Douglas Hohlbein Contouring toothbrush head
US8857003B2 (en) 1995-12-29 2014-10-14 Colgate-Palmolive Company Contouring toothbrush head
US6996870B2 (en) 1995-12-29 2006-02-14 Colgate-Palmolive Company Contouring toothbrush head
US20080307596A1 (en) * 1995-12-29 2008-12-18 Colgate-Palmolive Contouring Toothbrush Head
US8079110B2 (en) 2001-07-03 2011-12-20 Colgate-Palmolive Company Oral care implement
US7908699B2 (en) 2001-07-03 2011-03-22 Colgate-Palmolive Company Oral care implement
US9603441B2 (en) 2002-08-09 2017-03-28 Colgate-Palmolive Company Toothbrush
US8393042B2 (en) 2002-08-09 2013-03-12 Colgate-Palmolive Company Oral care implement
US8561247B2 (en) 2002-08-09 2013-10-22 Colgate-Palmolive Company Oral care implement
US8800093B2 (en) 2002-08-09 2014-08-12 Colgate-Palmolive Company Oral care implement
US8806695B2 (en) 2002-08-09 2014-08-19 Colgate-Palmolive Company Oral care implement having flexibly supported cleaning elements extending in opposite directions
US8839481B2 (en) 2002-08-09 2014-09-23 Colgate-Palmolive Company Oral care implement
US9545148B2 (en) 2002-08-09 2017-01-17 Colgate-Palmolive Company Oral care implement
US8876221B2 (en) 2002-08-09 2014-11-04 Colgate-Palmolive Company Oral care implement
US8990996B2 (en) 2002-08-09 2015-03-31 Colgate-Palmolive Company Toothbrush
US9167888B2 (en) 2002-08-09 2015-10-27 Colgate-Palmolive Company Oral care implement having flexibly supported cleaning elements extending in opposite directions
US20050166344A1 (en) * 2002-09-20 2005-08-04 Colgate-Palmolive Company Oral care implement
US7721376B2 (en) 2002-09-20 2010-05-25 Colgate-Palmolive Company Oral care implement

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