US2312828A - Toothbrush - Google Patents

Toothbrush Download PDF

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Publication number
US2312828A
US2312828A US36797740A US2312828A US 2312828 A US2312828 A US 2312828A US 36797740 A US36797740 A US 36797740A US 2312828 A US2312828 A US 2312828A
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Prior art keywords
brush
strip
bristles
head
tube
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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
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Emil G Adamsson
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Emil G Adamsson
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    • AHUMAN NECESSITIES
    • A46BRUSHWARE
    • A46BBRUSHES
    • A46B9/00Arrangements of the bristles in the brush body
    • A46B9/02Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups
    • A46B9/04Arranged like in or for toothbrushes

Description

l March 2,1943. E Q ADAMSSON y 2,312,828 I TOOTHBRUSH v Filed NOV. 30, 1940 Patented Mar.v 2, '1.943

' UNHTED' STATES PATENT OFFICE. t

y 2,312,828 y v Too'rnR'Usn Emil Adams'son, Chicago, Ill. Applioation November so, 1940, serial No. 367,977

1 Claim.`

This invention pertains to tooth brushes of the common and well known bristle type; and the primary object of'the invention is to provide a .brush that, by virtue of certain novel structural features, will substantially lessen the waste of the dentrice used as compared with ordinary bristle brushes, and without any loss of eiiiciency as a tooth brusher and cleanser.

In using the common bristle brush, whether having a longitudinally concave, flat, or longitudinally convex working face, it is a common experience for the strip of paste, as it is squeezed from the tube and laid on the face of the brush, to roll off one side or the other and fall into the lavatory bowl or onto the floor. Also, when Ysevering the strip on an edge of the brush, an incomplete severance often results in the strip being drawn oi the brush as the tube is withdrawn, and wasted. Somewhat similarly, when powder is used, a part of the powder falls'oi the brush and is wasted.

One feature of the present invention consists in forming in the working face of the brush a longitudinal groove or channel of a size to receive and hold a strip of paste squeezed from the tube, this groove or channel being completely closed at its sides and ends by the outside longitudinal and transverse rows of full length bristles, so that the paste or powder deposited therein cannot fall oif either the sides or ends of the brush.

Another feature of the invention which is complemental to the above mentioned feature, valthough either may be employed apart from the other, consists in providing a low ridge of uniform height on and all around'the edges of the brush head, which, when the brush is in use, prevents much of the paste or powder which works down through the bristles onto the brush head from overowing the sides or ends of the latter.

An illustrative embodiment of the invention which in practice has been found to satisfactorily effectuate the stated purpose or object, is shown in the accompanying drawing, in which- Fig. 1 is a perspective view of the brush, with the bristles shown uppermost.

Figs. 2 and 3 are enlarged cross sections through the brush head and bristles taken on the lines 2-2 and 3-'.3 respectively of Fig. 1, looking in opposite directions.

Figs. 4 and 5 are sectional views similar to Figs. 3 and 4 respectively, showing the use of a rubber strip, in lieu of a row of short bristles, to form the bottom wallof the longitudinal groove or channel.

' handlojand u the hoadof a tooth brush, 1n the head are mounted two' outer side rows of clumps I2 of full height bristles, two end rows of similar clumps I3 of bristles, and a single central longitudinal row of shorter .bristle clumps I4. This creates in the working surface of the brush a lon- .gitudinal groove or channel entirely surrounded at sides and ends by the bristles I2 and I3 that form the side and end walls of the channel. The bottom wall of the channel is formed by the upper ends of the intermediate central row of bristle clumps I4. -This groove is of adequate depth to seat and confine a strip of tooth paste squeezed from a tube, and prevents said strip from falling A either sidewise or endwise off the brush. In applying a strip of paste from a tube onto the working surface of a tooth brush, the latter is usually held by its handle in one hand, while the nozzle of the tube is slowly drawn lengthwise over the working surface of the brush, and a strip is then` severed by a down movement of the nozzle at the free end oi the brush. Where the working surface of the brush is flat throughout, the strip laid on the brush frequently fails of being completely severed, with the result that as the tube is with` drawn the extruded strip follows it and drops to the oor or i-nto the lavatory bowl. With my improved construction the fact that the strip is laid in the groove mainly below the level of the full height bristles at the free end of the brush head, facilitates the severance of the strip by a simple down movement of the nozzle of the tube, so that the strip is not easily drawn off the brush as the tube is withdrawn.

The form of the invention shown in Figs. 4 and 5 follows in the main the form illustrated in Figs. 1, 2 and 3; but in lieu of the central longitudinal row of short bristles I4 there is employed a strip of soft flexible material-preferably" a soft rubber strip I5 of the same height, and occupying the same space, as the intermediate row of bristle clumps I4; this strip I5 being embedded in or suitably attached to the head'l I. In lieu of rubber, felt or other soft, exible material may be employed. Ihe upper edge of the strip I5 is preferably madetransversely concave, as indicated at I5', forming a shallow trough which is closed at its ends, as shown in Fig. 6; and, when rubber is used, this trough is a vgreat convenience since it will hold a liquid or cream dentriiice and will without waste. y

which forms the bottom wall of the groove has a height of about two-thirds the height of the full height bristles I2 and I3 surrounding the same.

Manifestly, with the .described construction, the paste, liquid, cream of powder applied to thev brush can escape only through and between the surrounding bristles when the brush is being used, so that these clumps 'of bristles become thorough- 1y impregnated with the dentifrice during the tooth brushingoperation, andl practically all of the dentifrice is applied to its intended purpose.

Another structural feature which is preferably complemental to the above describedfeature consists in the formation on the sides and ends of the head II of a low integral continuous upstanding ridge I6 that entirely surrounds the tooth scouring elements of the brush and Vprevents escape of the dentifrice over the sides and ends of the head. As shown in the sectional views,v the surface II of the head from which the bristles project is transversely flat, and the side members of the ridge I'Ii are spaced equally distant from the bristles. The basin formed by the head and ridge also aids in carrying a large amount of liquid dentifrice,cream dentifrice, or antiseptic liquid to the teeth and gums. y

As before stated, either of the two dentifrice conserving features may be used alone: but preferably they are combined in a single brush, since,

although their structural features are different,

their dentifrice conservation effects are cumulav tive. v

The unique'structure of thebrush also permits the bristles of the brush to fit around the edges of lthe teeth, enhancing the cleaning efficiency as the single rows of bristles are free to wash around and between the teeth.

Variations and modifications in the structural details shown and described may be resorted to within the spirit and scope of the invention as defined by the following claim.

' I claim:

.A bristle tooth brush `comprising outer and intermediate longitudinally extending rows of bristle tufts, the tufts of the intermediate row inwardly of the end tufts thereof being shorter thanl the tufts of the adjacent outer rows and shorter than said end tufts, thereby providing in the working face of the brush, a longitudinal groove closed at its sides and ends by surround- Y ing bristle tufts, said groove having a depth less than the depth of said surrounding bristles and being operative to seat and confine, both laterally and endwise, a body of dentifrice deposited therein. Y

` EMIL G. ADAMSSON.

US2312828A 1940-11-30 1940-11-30 Toothbrush Expired - Lifetime US2312828A (en)

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Cited By (60)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2439922A (en) * 1944-12-15 1948-04-20 Joseph J Chappell Nail brush
US2522305A (en) * 1947-09-02 1950-09-12 Lawrence R Schumann Staple-set paintbrush
US2702914A (en) * 1950-11-04 1955-03-01 Levi O Kittle Toothbrush
US3100309A (en) * 1959-08-27 1963-08-13 James C Gambino Toothbrush
US3103935A (en) * 1960-07-13 1963-09-17 Louis J Woodrow Disposable toothbrush
US3903906A (en) * 1973-03-12 1975-09-09 George C Collis Method and apparatus for brushing teeth
US5335389A (en) * 1990-03-29 1994-08-09 Colgate-Palmolive Company Plaque removing toothbrush
US5341537A (en) * 1990-03-29 1994-08-30 Colgate-Palmolive Company Plaque removing toothbrush
WO1996020654A1 (en) * 1994-12-30 1996-07-11 Shipp Anthony D Prophy toothbrush
US5806127A (en) * 1992-08-03 1998-09-15 Colgate-Palmolive Company Coded toothbrush
US5930860A (en) * 1996-03-27 1999-08-03 Shipp; Anthony D. Prophy bristle toothbrush
US6041468A (en) * 1998-03-12 2000-03-28 Colgate-Palmolive Company Prophy toothbrush
US6056469A (en) * 1994-11-15 2000-05-02 Algorri; Mark S. Toothbrush with toothpaste dispensing casing
US6086373A (en) * 1996-07-25 2000-07-11 Schiff; Thomas Method of cleaning teeth with a toothbrush with improved cleaning and abrasion efficiency
US20020084550A1 (en) * 1995-11-09 2002-07-04 Michael Roberts Gum-massaging oral brush
US20030140440A1 (en) * 1999-06-11 2003-07-31 Gavney James A. Dentition cleaning device and system
US6658688B2 (en) 1999-06-11 2003-12-09 James A. Gavney, Jr. Squeegee device and system
US20030229959A1 (en) * 1999-06-11 2003-12-18 Gavney James A. Multi-directional wiping elements and device using the same
WO2004028235A3 (en) * 2002-09-27 2004-05-27 Colgate Palmolive Co Toothbrush
US20040154112A1 (en) * 2003-02-11 2004-08-12 Braun Phillip M. Toothbrushes
US20040200016A1 (en) * 2003-04-09 2004-10-14 The Procter & Gamble Company Electric toothbrushes
US20040255427A1 (en) * 1999-06-11 2004-12-23 Gavney James A. Aquatic scrubber
US20040261207A1 (en) * 2002-11-09 2004-12-30 Gavney James A. Squeegee device and system
US20050000043A1 (en) * 2003-04-23 2005-01-06 The Procter & Gamble Company Electric toothbrushes
US20050000048A1 (en) * 2002-09-20 2005-01-06 Colgate-Palmolive Company Toothbrush
US20050015901A1 (en) * 1999-06-11 2005-01-27 Gavney James A. Oral-care device and system
US20050049155A1 (en) * 1999-06-11 2005-03-03 Gavney James A. Oral-care device and system
US6865767B1 (en) 2000-06-05 2005-03-15 James A. Gavney, Jr. Device with multi-structural contact elements
US20050060822A1 (en) * 2003-09-19 2005-03-24 Chenvainu Alexander T. Toothbrushes
WO2005055863A1 (en) 2003-12-11 2005-06-23 Koninklijke Philips Electronics, N.V. Power toothbrush brushhead with fulid-directing member
US20050166343A1 (en) * 1999-06-11 2005-08-04 Gavney James A.Jr. Powered toothbrush with polishing elements
US20050166344A1 (en) * 2002-09-20 2005-08-04 Colgate-Palmolive Company Oral care implement
US20050189000A1 (en) * 2001-01-12 2005-09-01 Cacka Joe W. Flosser with motor integrated with vibrating head
US20050198757A1 (en) * 2002-11-09 2005-09-15 Gavney James A.Jr. Absorbent structures with integrated contact elements
US20050210612A1 (en) * 2001-07-03 2005-09-29 Colgate-Palmolive Company Oral care implement
US20050273954A1 (en) * 1999-06-11 2005-12-15 Gavney James A Jr Device and system with moving squeegee fields
US7047589B2 (en) 1999-06-11 2006-05-23 Gavney Jr James A Dentition cleaning device and system
US20060117506A1 (en) * 1999-06-11 2006-06-08 Gavney James A Jr Oral-care device and system
US20060130257A1 (en) * 1996-01-18 2006-06-22 Cann David V Toothbrush with elastomer filled flexible head
US20060230563A1 (en) * 2000-09-19 2006-10-19 Gavney James A Jr Oral care device with multi-structural contact elements
US20060236477A1 (en) * 1999-06-11 2006-10-26 Gavney James A Jr Oral-care device and system
US20060236478A1 (en) * 2002-09-20 2006-10-26 Colgate-Palmolive Company Toothbrush
US20060242778A1 (en) * 1999-06-14 2006-11-02 Solanki Sanjay A Toothbrush
US20070251040A1 (en) * 2003-03-14 2007-11-01 The Procter & Gamble Company Toothbrush head
US7434288B2 (en) 2000-09-19 2008-10-14 Gavney Jr James A Oral care device with multi-structural contact elements
US20090044357A1 (en) * 2007-08-16 2009-02-19 The Procter & Gamble Company Electric toothbrushes
CN100473305C (en) 2002-09-27 2009-04-01 高露洁-棕榄公司 Toothbrush
USD612611S1 (en) 2003-02-11 2010-03-30 The Gillette Company Head of a toothbrush
US20100162499A1 (en) * 2004-04-23 2010-07-01 Braun Phillip M Vibrating Toothbrush
US20110203066A1 (en) * 2010-02-19 2011-08-25 Christian Wolfram Hahn Toothpaste measuring toothbrush
US20110219556A1 (en) * 2002-09-20 2011-09-15 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
USRE44819E1 (en) 2000-03-16 2014-04-01 Procter & Gamble Business Services Canada Company Toothbrush
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
US8943634B2 (en) 2011-05-02 2015-02-03 Water Pik, Inc. Mechanically-driven, sonic toothbrush system
US8990996B2 (en) 2002-08-09 2015-03-31 Colgate-Palmolive Company Toothbrush
US9468511B2 (en) 2013-03-15 2016-10-18 Water Pik, Inc. Electronic toothbrush with vibration dampening

Cited By (132)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2439922A (en) * 1944-12-15 1948-04-20 Joseph J Chappell Nail brush
US2522305A (en) * 1947-09-02 1950-09-12 Lawrence R Schumann Staple-set paintbrush
US2702914A (en) * 1950-11-04 1955-03-01 Levi O Kittle Toothbrush
US3100309A (en) * 1959-08-27 1963-08-13 James C Gambino Toothbrush
US3103935A (en) * 1960-07-13 1963-09-17 Louis J Woodrow Disposable toothbrush
US3903906A (en) * 1973-03-12 1975-09-09 George C Collis Method and apparatus for brushing teeth
US5446940A (en) * 1990-03-29 1995-09-05 Colgate-Palmolive Company Toothbrush
US5335389A (en) * 1990-03-29 1994-08-09 Colgate-Palmolive Company Plaque removing toothbrush
US5341537A (en) * 1990-03-29 1994-08-30 Colgate-Palmolive Company Plaque removing toothbrush
US6033733A (en) * 1992-08-03 2000-03-07 Colgate-Palmolive Company Method for controlling dentifrice usage
US5806127A (en) * 1992-08-03 1998-09-15 Colgate-Palmolive Company Coded toothbrush
US6056469A (en) * 1994-11-15 2000-05-02 Algorri; Mark S. Toothbrush with toothpaste dispensing casing
US5604951A (en) * 1994-12-30 1997-02-25 Shipp; Anthony D. Prophy toothbrush
WO1996020654A1 (en) * 1994-12-30 1996-07-11 Shipp Anthony D Prophy toothbrush
US20040087882A1 (en) * 1995-11-09 2004-05-06 Gillette Canada Company, A Canadian Corporation Gum massaging oral brush
US20070234496A1 (en) * 1995-11-09 2007-10-11 Gillette Canada Inc., A Canadian Corporation Gum massaging oral brush
US20060085931A1 (en) * 1995-11-09 2006-04-27 The Gillette Company, A Delaware Corporation Gum-massaging oral brush
US20020084550A1 (en) * 1995-11-09 2002-07-04 Michael Roberts Gum-massaging oral brush
US20050086753A1 (en) * 1995-11-09 2005-04-28 Gillette Canada, A Canadian Corporation Gum massaging oral brush
US7962992B2 (en) 1996-01-18 2011-06-21 The Procter & Gamble Company Toothbrush with elastomer filled flexible head
US20060130257A1 (en) * 1996-01-18 2006-06-22 Cann David V Toothbrush with elastomer filled flexible head
US8327492B2 (en) 1996-01-18 2012-12-11 The Procter & Gamble Company Toothbrush with elastomer filled flexible head
US5930860A (en) * 1996-03-27 1999-08-03 Shipp; Anthony D. Prophy bristle toothbrush
US6138314A (en) * 1996-07-25 2000-10-31 Whitehill Oral Technologies, Inc. Toothbrush with improved cleaning and abrasion efficiency
US6086373A (en) * 1996-07-25 2000-07-11 Schiff; Thomas Method of cleaning teeth with a toothbrush with improved cleaning and abrasion efficiency
US6041468A (en) * 1998-03-12 2000-03-28 Colgate-Palmolive Company Prophy toothbrush
US20060117506A1 (en) * 1999-06-11 2006-06-08 Gavney James A Jr Oral-care device and system
US20040221409A1 (en) * 1999-06-11 2004-11-11 Gavney James A. Squeegee device and system
US6820299B2 (en) 1999-06-11 2004-11-23 James A. Gavney, Jr. Dentition cleaning device and system
US6820300B2 (en) 1999-06-11 2004-11-23 James A. Gavney, Jr. Squeegee device and system
US20040231082A1 (en) * 1999-06-11 2004-11-25 Gavney James A. Dentition cleaning device and system
US20040231076A1 (en) * 1999-06-11 2004-11-25 Gavney James A. Dentition cleaning device and system
US20040237236A1 (en) * 1999-06-11 2004-12-02 Gavney James A. Squeegee device and system
US20040255427A1 (en) * 1999-06-11 2004-12-23 Gavney James A. Aquatic scrubber
US20030140440A1 (en) * 1999-06-11 2003-07-31 Gavney James A. Dentition cleaning device and system
US6658688B2 (en) 1999-06-11 2003-12-09 James A. Gavney, Jr. Squeegee device and system
US7363675B2 (en) 1999-06-11 2008-04-29 Gavney Jr James A Squeegee device and system
US20050015901A1 (en) * 1999-06-11 2005-01-27 Gavney James A. Oral-care device and system
US6859969B2 (en) 1999-06-11 2005-03-01 James A. Gavney, Jr. Multi-directional wiping elements and device using the same
US20050049155A1 (en) * 1999-06-11 2005-03-03 Gavney James A. Oral-care device and system
US20060236477A1 (en) * 1999-06-11 2006-10-26 Gavney James A Jr Oral-care device and system
US7877833B2 (en) 1999-06-11 2011-02-01 Gavney Jr James A Oral-care device and system
US7975339B2 (en) 1999-06-11 2011-07-12 Gavney Jr James A Aquatic scrubber
US7814603B2 (en) 1999-06-11 2010-10-19 Gavney Jr James A Powered toothbrush with polishing elements
US7562411B2 (en) 1999-06-11 2009-07-21 Gavney Jr James A Oral-care device and system
US7047589B2 (en) 1999-06-11 2006-05-23 Gavney Jr James A Dentition cleaning device and system
US7743448B2 (en) 1999-06-11 2010-06-29 Gavney Jr James A Device and system with moving squeegee fields
US20050166343A1 (en) * 1999-06-11 2005-08-04 Gavney James A.Jr. Powered toothbrush with polishing elements
US7069615B2 (en) 1999-06-11 2006-07-04 Gavney Jr James A Squeegee device and system
US8276231B2 (en) 1999-06-11 2012-10-02 Gavney Jr James A Oral-care device and system
US20030229959A1 (en) * 1999-06-11 2003-12-18 Gavney James A. Multi-directional wiping elements and device using the same
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US8276233B2 (en) 1999-06-11 2012-10-02 Gavney Jr James A Multi-directional wiping elements and device using the same
US20050229339A1 (en) * 1999-06-11 2005-10-20 Gavney James A Jr Oral-care device and system
US20050273954A1 (en) * 1999-06-11 2005-12-15 Gavney James A Jr Device and system with moving squeegee fields
US20060021170A1 (en) * 1999-06-11 2006-02-02 Gavney James A Jr Squeegee device and system
US7181799B2 (en) 1999-06-11 2007-02-27 Eegee, Llc Oral-care device and system
US20040031115A1 (en) * 1999-06-11 2004-02-19 Gavney James A. Squeegee device and system
US7051394B2 (en) 1999-06-11 2006-05-30 Gavney Jr James A Dentition cleaning device and system
US7707676B2 (en) 1999-06-14 2010-05-04 The Procter & Gamble Company Toothbrush
US20060242778A1 (en) * 1999-06-14 2006-11-02 Solanki Sanjay A Toothbrush
USRE44819E1 (en) 2000-03-16 2014-04-01 Procter & Gamble Business Services Canada Company Toothbrush
US6865767B1 (en) 2000-06-05 2005-03-15 James A. Gavney, Jr. Device with multi-structural contact elements
US7814604B2 (en) 2000-09-19 2010-10-19 Gavney Jr James A Device with multi-structural contact elements
US20060230563A1 (en) * 2000-09-19 2006-10-19 Gavney James A Jr Oral care device with multi-structural contact elements
US7434288B2 (en) 2000-09-19 2008-10-14 Gavney Jr James A Oral care device with multi-structural contact elements
US20050189000A1 (en) * 2001-01-12 2005-09-01 Cacka Joe W. Flosser with motor integrated with vibrating head
US8079110B2 (en) 2001-07-03 2011-12-20 Colgate-Palmolive Company Oral care implement
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US8141194B2 (en) 2002-11-09 2012-03-27 Gavney Jr James A Absorbent structures with integrated contact elements
US20050198757A1 (en) * 2002-11-09 2005-09-15 Gavney James A.Jr. Absorbent structures with integrated contact elements
US20040154112A1 (en) * 2003-02-11 2004-08-12 Braun Phillip M. Toothbrushes
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