GB2214420A - Toothbrush - Google Patents

Toothbrush Download PDF

Info

Publication number
GB2214420A
GB2214420A GB8802058A GB8802058A GB2214420A GB 2214420 A GB2214420 A GB 2214420A GB 8802058 A GB8802058 A GB 8802058A GB 8802058 A GB8802058 A GB 8802058A GB 2214420 A GB2214420 A GB 2214420A
Authority
GB
Grant status
Application
Patent type
Prior art keywords
toothbrush
moulding
handle portion
projections
flexible projections
Prior art date
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.)
Withdrawn
Application number
GB8802058A
Other versions
GB8802058D0 (en )
Inventor
Tien-Fa Pai
Ming-Kun Lai
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LAI MING KUN
PAI TIEN FA
Original Assignee
LAI MING KUN
PAI TIEN FA
Priority date (The priority date 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 date listed.)
Filing date
Publication date

Links

Classifications

    • AHUMAN NECESSITIES
    • A46BRUSHWARE
    • A46BBRUSHES
    • A46B9/00Arrangements of the bristles in the brush body
    • A46B9/005Arrangements of the bristles in the brush body where the brushing material is not made of bristles, e.g. sponge, rubber or paper
    • 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

1 T=BRUSH 7he present invention relates to toothbrushes.

is 2214420 An object of the present invention is to provide an improved toothbrush, which is particularly suitable for use by persons with gum 5 disea e.

Known toothbrushes conprise bundles of bristles embeded in one end of a handle portion and in use frequently cause gum bleeding. Men such toothbrushes are used regularly by persons having diseased gums, 10 their gums have no qpportunity of recovery.

The invention provides a toothbrush having a brush portion in the form of a unitary plastics moulding, said moulding having an array of flexible projections formed therein.

Preferably, said flexible projections taper tawards their extremities, and may be triangular in transverse-cross section, for exanple.

Preferably, the tips of the flexible projections are rounded, to a part-spherical shape for example.

Thothbrushes in accordance with the invention cause less abrasion to the gums than conventional toothbrushes. It is believe that the spaces between the tapered projections function to mix toothpastes, moisture and plaque resulting in the efficient production of a fine foam which results in efficient cleaning of the teeth.

A prefered embodiment of this invention is described below by way of a exanple of only, with reference to f igures 1 and 2 of the accoing drawings of which:

Fig. 1 is a longitudinal cross section of a toothbrush in accordance with the invention, and Fig. 2 is a perspective view of the toothbrush of Fig. 1.

1 - 2 As shown in Fig. 1 the toothbrush coriprises a handle 1 which has a shallow groove 4 at is distal end which receives a unitary plastic wilding 5 having tapered flexible projects formed therein which extend from a base portion 502. Ebles 3 are formed in the brush seat 2 of the handle 1. Me cross section of the holes 3 increases in the direction away from the moulding 5 and accordingly integrally moulded projections 503 from moulding 5 anchor the brush portion in the brush seat 2. The brush portion 5 is formed by moulding suitably soft plastics material in contact with the previously formed handle 1 so that the material of the brush portion fills the holes 3. The tips 501 of the flexible projections from the brush portion 5 are part-spherical form and ensure that undue abrashion of the gums does not occur in use.

As shown in Fig. 2, the transverse cross section of the projetions is triangular. The tapered configuration of the projections ensures that the area of contact between brush portion and gums increases as the brush portion is pressed harder against the teeth, so as to eleviate undue pressure and abrasion on gums.

The plastic material used for forming the moulding 5 may be formulated to adjust the softness to a required value, and the choice of materials and blending is considered to be matter within the co, " tence of persons skilled in the art.

The degree of taper of the projections from the brush portion 5 should be chosen so as to cptimize the brushing action, consistent with reasonable strength of the projections.

- 3

Claims (6)

CIAIMS:
1. A toothbrush having a brush portion in the form of a unitary plastics moulding, said moulding having an array of flexible projections formed therein.
2. A toothbrush according to claim 1, wherein said flexible projections taper towards their extremities.
3. A toothbrush according to claim 1 or claim 2, wherein said flexible projections are rounded at their tips.
4. A toothbrush according to any preceding claim wherein said moulding is anchored to a handle portion of the toothbrush by one or more interengaging projections and recess configurations of said moulding and handle portion which prevent the moulding being separated 15 from handle portion.
5. A toothbrush as cla in claim 5, wherein said moulding is moulded in contactwith said projection and recess configurations.
6. A toothbrush substantially as described hereinabove with reference to and as illustrated in the accoi[panying drawings.
Published 1989 atThe Patent Office, State House, 66M High Holborn, London WC1R 4TP. FUrther copies maybe obtainedfrom The Patent Office.
GB8802058A 1987-12-18 1988-01-29 Toothbrush Withdrawn GB8802058D0 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19873743140 DE3743140A1 (en) 1987-12-18 1987-12-18 Toothbrush with soft bristles

Publications (2)

Publication Number Publication Date
GB8802058D0 GB8802058D0 (en) 1988-02-24
GB2214420A true true GB2214420A (en) 1989-09-06

Family

ID=6343011

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8802058A Withdrawn GB8802058D0 (en) 1987-12-18 1988-01-29 Toothbrush

Country Status (2)

Country Link
DE (1) DE3743140A1 (en)
GB (1) GB8802058D0 (en)

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4019825A1 (en) * 1990-06-21 1992-01-09 Lessmann Gmbh Leather cleaning brush - has synthetic thermoplastic rubber head fixed directly to handle, pref. by injection moulding
GB2354432A (en) * 1999-09-17 2001-03-28 Johnson & Johnson Ind Com Tooth brush
WO2001087101A2 (en) * 2000-05-18 2001-11-22 Gillette Canada Company Oral devices
US6463618B1 (en) * 1998-01-26 2002-10-15 Sanofi-Synthelabo Toothbrush comprising improved means for fixing friction elements
WO2003043459A2 (en) 2001-11-20 2003-05-30 Glaxosmithkline Consumer Healthcare Gmbh & Co Kg Toothbrush
EP1181877B1 (en) * 1994-11-19 2005-01-12 SmithKline Beecham plc Toothbrush
US6895624B2 (en) 2002-03-07 2005-05-24 Ultradent Products, Inc. Powered tongue cleaning device
US6993804B1 (en) * 2000-08-08 2006-02-07 The Gillette Company Oral care devices
DE102005041459A1 (en) * 2005-08-31 2007-03-01 Braun Gmbh Gum massage brush head for use in tooth brush, has massage units made of soft material and protruding from operating side of head, where units have hardness of less than fifty shores and shape that is stably movable with certain hertz
US7546658B2 (en) 2001-10-05 2009-06-16 Glaxosmithkline Consumer Healthcare Gmbh & Co. Kg Toothbrush
US7743448B2 (en) 1999-06-11 2010-06-29 Gavney Jr James A Device and system with moving squeegee fields
US7814604B2 (en) 2000-09-19 2010-10-19 Gavney Jr James A Device with multi-structural contact elements
US7877833B2 (en) 1999-06-11 2011-02-01 Gavney Jr James A Oral-care device and system
US7941886B2 (en) 2003-09-19 2011-05-17 Braun Gmbh Toothbrushes
US7975344B2 (en) 2003-03-14 2011-07-12 The Gillette Company Toothbrush head
US8042217B2 (en) 2004-11-02 2011-10-25 Colgate-Palmolive Company Toothbrush and method of making the same
US8141194B2 (en) 2002-11-09 2012-03-27 Gavney Jr James A Absorbent structures with integrated contact elements
US8276231B2 (en) 1999-06-11 2012-10-02 Gavney Jr James A Oral-care device and system
US8332982B2 (en) 2004-04-23 2012-12-18 The Gillette Company Vibrating toothbrush
WO2013060753A1 (en) 2011-10-27 2013-05-02 Glaxosmithkline Consumer Healthcare Gmbh & Co. Kg Toothbrush
USRE44819E1 (en) 2000-03-16 2014-04-01 Procter & Gamble Business Services Canada Company Toothbrush
US20140201933A1 (en) * 2005-09-09 2014-07-24 Colgate-Palmolive Company Toothbrush

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9012603U1 (en) * 1990-09-04 1992-01-09 Coronet - Werke Heinrich Schlerf Gmbh, 6948 Wald-Michelbach, De
DE19937481A1 (en) * 1999-08-07 2001-02-08 Coronet Werke Gmbh Brushes, in particular toothbrushes

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB690422A (en) * 1949-04-13 1953-04-22 Universal Metal Products Ltd Improvements in brushes
GB811195A (en) * 1956-07-20 1959-04-02 G O L Sarl Tooth brush
GB1083369A (en) * 1964-10-30 1967-09-13 Ake Poppelman Toothbrush
GB1208612A (en) * 1966-10-31 1970-10-14 Louis Frank Kutik Improvements in or relating to injection molding

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB690422A (en) * 1949-04-13 1953-04-22 Universal Metal Products Ltd Improvements in brushes
GB811195A (en) * 1956-07-20 1959-04-02 G O L Sarl Tooth brush
GB1083369A (en) * 1964-10-30 1967-09-13 Ake Poppelman Toothbrush
GB1208612A (en) * 1966-10-31 1970-10-14 Louis Frank Kutik Improvements in or relating to injection molding

Cited By (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4019825A1 (en) * 1990-06-21 1992-01-09 Lessmann Gmbh Leather cleaning brush - has synthetic thermoplastic rubber head fixed directly to handle, pref. by injection moulding
EP1181877B1 (en) * 1994-11-19 2005-01-12 SmithKline Beecham plc Toothbrush
US6463618B1 (en) * 1998-01-26 2002-10-15 Sanofi-Synthelabo Toothbrush comprising improved means for fixing friction elements
US7877833B2 (en) 1999-06-11 2011-02-01 Gavney Jr James A Oral-care device and system
US8276231B2 (en) 1999-06-11 2012-10-02 Gavney Jr James A Oral-care device and system
US7743448B2 (en) 1999-06-11 2010-06-29 Gavney Jr James A Device and system with moving squeegee fields
GB2354432B (en) * 1999-09-17 2003-04-23 Johnson & Johnson Ind Com Tooth brush
GB2354432A (en) * 1999-09-17 2001-03-28 Johnson & Johnson Ind Com Tooth brush
USRE44819E1 (en) 2000-03-16 2014-04-01 Procter & Gamble Business Services Canada Company Toothbrush
US6826797B1 (en) 2000-05-18 2004-12-07 Gillette Canada Company Oral devices
WO2001087101A3 (en) * 2000-05-18 2002-04-04 Amit Birla Oral devices
WO2001087101A2 (en) * 2000-05-18 2001-11-22 Gillette Canada Company Oral devices
US6993804B1 (en) * 2000-08-08 2006-02-07 The Gillette Company Oral care devices
US7814604B2 (en) 2000-09-19 2010-10-19 Gavney Jr James A Device with multi-structural contact elements
EP2098134A1 (en) 2001-10-05 2009-09-09 GlaxoSmithKline Consumer Healthcare GmbH & Co. KG. Toothbrush
US7546658B2 (en) 2001-10-05 2009-06-16 Glaxosmithkline Consumer Healthcare Gmbh & Co. Kg Toothbrush
US7725972B2 (en) 2001-11-20 2010-06-01 Glaxosmithkline Consumer Gmbh & Co. Kg Toothbrush
WO2003043459A2 (en) 2001-11-20 2003-05-30 Glaxosmithkline Consumer Healthcare Gmbh & Co Kg Toothbrush
US6895624B2 (en) 2002-03-07 2005-05-24 Ultradent Products, Inc. Powered tongue cleaning device
US8141194B2 (en) 2002-11-09 2012-03-27 Gavney Jr James A Absorbent structures with integrated contact elements
US7975344B2 (en) 2003-03-14 2011-07-12 The Gillette Company Toothbrush head
US9220335B2 (en) 2003-03-14 2015-12-29 The Gillette Company Toothbrush head
US8528148B2 (en) 2003-03-14 2013-09-10 The Gillette Company Toothbrush head
US8621698B2 (en) 2003-09-19 2014-01-07 Braun Gmbh Toothbrushes
US9204949B2 (en) 2003-09-19 2015-12-08 The Gillettte Company Toothbrushes
US7941886B2 (en) 2003-09-19 2011-05-17 Braun Gmbh Toothbrushes
US8332982B2 (en) 2004-04-23 2012-12-18 The Gillette Company Vibrating toothbrush
US8042217B2 (en) 2004-11-02 2011-10-25 Colgate-Palmolive Company Toothbrush and method of making the same
DE102005041459A1 (en) * 2005-08-31 2007-03-01 Braun Gmbh Gum massage brush head for use in tooth brush, has massage units made of soft material and protruding from operating side of head, where units have hardness of less than fifty shores and shape that is stably movable with certain hertz
US20140201933A1 (en) * 2005-09-09 2014-07-24 Colgate-Palmolive Company Toothbrush
US9364075B2 (en) * 2005-09-09 2016-06-14 Colgate-Palmolive Company Toothbrush
WO2013060753A1 (en) 2011-10-27 2013-05-02 Glaxosmithkline Consumer Healthcare Gmbh & Co. Kg Toothbrush

Also Published As

Publication number Publication date Type
GB8802058D0 (en) 1988-02-24 grant
DE3743140A1 (en) 1989-06-29 application

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)