US758764A - Tooth-brush. - Google Patents

Tooth-brush. Download PDF

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Publication number
US758764A
US758764A US8673001A US1901086730A US758764A US 758764 A US758764 A US 758764A US 8673001 A US8673001 A US 8673001A US 1901086730 A US1901086730 A US 1901086730A US 758764 A US758764 A US 758764A
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Prior art keywords
brush
handle
tooth
bristles
brushes
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Expired - Lifetime
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US8673001A
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William A Macleod
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    • AHUMAN NECESSITIES
    • A46BRUSHWARE
    • A46BBRUSHES
    • A46B5/00Brush bodies; Handles integral with brushware
    • A46B5/02Brush bodies; Handles integral with brushware specially shaped for holding by the hand

Definitions

  • Zjdfiweasea [Ya anion /L 1. SWMQ Q Wm IZZIASMQM Jail-02 w 6.
  • tooth-brushes comprise a series of tufts of bristles, a back in which the said tufts of bristles are secured, and a handle extending from the back.
  • the said back and handle of these bristle brushes are formed from substantially rigid material such as bone, composition, or woodand in use there is no appreciable flexibility of the handle or movement of the handle and back relatively to each other.
  • the inflexibility and rigidity of the handle and back result in a harshness of action which, unless the brush is used with care and gentleness, so long as the brush is new or in comparatively unworn condition, or unless its bristles are of carefullyselected stock of medium or slight stiffness, frequently is not only disagreeable or painful to the user, but is injurious in its effects.
  • My invention has for its object to provide a tooth-brush which may be constructed with bristles of hard or medium quality, thereby rendering the brush capable of properly cleansing the teeth, which will at the same time be yielding and agreeable in use and which will operate to reduce to a minimum the danger of applying too great a force in the operation of cleaning the teeth, and thereby causing injury.
  • Figure 1 is a side elevation of a tooth-brush embodying my invention.
  • Fig. 2 is a plain view thereof, the face or bristle portion of the brush being uppermost.
  • the back of a brush embodying my invention is shown at 2, the tufts or bristles at 3, and the handle at L.
  • the number of tufts or bristles used may be varied, and the bristle portion may be of any well-known contou-r or shape. I prefer, however, the shape shown, in which the bristle-face of the brush is concaved longitudinally. (See Fig. 1).
  • Each tuft of bristles is pointed at the free end, and a large group or combined tuft of bristles, also pointed, as shown at a, is provided at that end of the brush which is farthest from the handle.
  • I preferably form the back 2 and handle 4: integral with each other, though not necessarily in all embodiments of the invention, employing in the manufacture thereof a tough resilient material which may when properly shaped and proportioned be bent or flexed under the application of the predetermined degree of force, thereby permitting fiexure of the handle and movement of the back and handle relatively to each other, as indicated by the dotted lines in Fig. 1.
  • the resiliency of the material preferably should be such that the said parts when the bending strain is removed will quickly assume their normal relative positions. I have found celluloid to be a convenient and good material for the purpose, it possessing the requisite toughness and resiliency, while it may be readily shaped and otherwise manipulated in the manufacture of the brush.
  • the flexibility may be distributed throughout the handle or the greater part of the length thereof. 'In some cases I confine the same chiefly to the portion of the handle immediately adjacent the back by forming the neck portion, as 7, intermediate the back and the handle of proportionately greater flexibility than the back and handle proper. This enables the brush-head to adapt itself to the contour of the jaw somewhat more freely and otherwise improves the action of the brush. This greater flexibility may in some cases be secured by forming said neck somewhat smaller than the adjacent portions of the back or handle, as shown, so that when pressure is applied the neck will bend more readily than other portions of the handle. Other means of rendering the neck portion more flexible than the back and the han dle proper may be adopted in practice.
  • a most important advantage of a brush embodying my invention is the fact that no matter how stiff and unyielding the bristles themselves may be the flexibility of the handle if proportioned as I contemplate having it renders practically impossible any such harsh action of the said bristles against the teeth of the user as would tend to occasion discomfort and injury, as in consequence of the application of an undue amount of force to the handle.
  • Vv'hatever force is exerted at the handle within reasonable limits the measure of the pressure of the bristles against the teeth and gums of the user is the degree of flexibility of the handle.
  • a bristle tooth-brush having a handle which is substantially firm or rigid but which is adapted to yield under a moderate pressure transmitted through the same, substantially as described.
  • a bristle tooth-brush having the back and handle integrally formed from a resilient material to permit yielding when pressure beyond a predetermined degree is applied to the handle.
  • a bristle tooth-brush havinga back and handle and an intermediate neck integrally formed of resilient material, said neck being flexible to permit a movement of the back and handle relatively to each other under pressure applied to the handle.
  • a tooth-brush having a bristle-head and the back and handle thereof being yieldingly connected with each other; whereby pressure applied at the handle will be elastically transmitted to the brush-head and applied by the latter in a yielding manner.

Description

No. 758,764. PATENTED MAY 3, 1904. w. A.,MAGLEOD.
TOOTH BRUSH.
APPLICATION mum mm. 21. 1901.
no MODEL.
Zjdfiweasea: [Ya anion /L 1. SWMQ Q Wm IZZIASMQM Jail-02 w 6.
Patented May 3,1904.
PATENT OFFICE.
\V'ILLIAM A. MACLEOD, OF BOSTON, MASSACHUSETTS.
TOOTH-BRUSH- SPECIFICATION forming part of Letters Patent No. 758,764, dated. May 3, 1904.
Application filed December 21, 1901. Serial No. 86,730. (No model.)
To (all whom it may concern:
Be it known that 1, WILLIAM A. MAcLEoD, a citizen of the United States, residing at Boston, in the county of Suffolk, State of Massachusetts, have invented a certain new and useful Improvement in Tooth-Brushes, of which the following is a specification, reference being had therein to the accompanying drawings.
As commonly made tooth-brushes comprise a series of tufts of bristles, a back in which the said tufts of bristles are secured, and a handle extending from the back. The said back and handle of these bristle brushes are formed from substantially rigid material such as bone, composition, or woodand in use there is no appreciable flexibility of the handle or movement of the handle and back relatively to each other. The inflexibility and rigidity of the handle and back result in a harshness of action which, unless the brush is used with care and gentleness, so long as the brush is new or in comparatively unworn condition, or unless its bristles are of carefullyselected stock of medium or slight stiffness, frequently is not only disagreeable or painful to the user, but is injurious in its effects. It is well known that ovcrforeeful use of a hard or stiff brush will wound the gums, occasion recession of the gums, and injure both the necks and the enamel of the teeth by wearing the same away. It has been sought to remedy these objections in part by grading bristles according to their stiffness and making therefrom brushes differing in their qualities and classed, respectively, as hard, medium, soft, &c., thereby enabling a choice of brushes to be had, rendering it possible to purchase a brush which is approximately adapted to the physical peculiarities or needs of the user of the brush. This renders it possible to supply a soft brush to those preferring or requiring such. Recourse to this expedient, however, only partially avoids some of the objections named and does not at all alleviate others, while it incurs still others which are equally or quite as great. For example, brushes which are soft enough to obviate discomfort and injury to the user have little or no value as cleaning agents even when new. The points of soft bristles will not properly enter and cleanse crevices or spaces between the teeth. Inasmuch as bristles soften and break down comparatively soon in consequence of use, a brush which is only moderately soft at first quickly becomes unserviceable.
My invention has for its object to provide a tooth-brush which may be constructed with bristles of hard or medium quality, thereby rendering the brush capable of properly cleansing the teeth, which will at the same time be yielding and agreeable in use and which will operate to reduce to a minimum the danger of applying too great a force in the operation of cleaning the teeth, and thereby causing injury.
My invention is fully set forth in the following description, in which reference is made to the accompanying drawings, and the novel features thereof are pointed out and clearly defined in the claims at the close of this specification.
In the drawings, Figure 1 is a side elevation of a tooth-brush embodying my invention. Fig. 2 is a plain view thereof, the face or bristle portion of the brush being uppermost.
The back of a brush embodying my invention is shown at 2, the tufts or bristles at 3, and the handle at L. The number of tufts or bristles used may be varied, and the bristle portion may be of any well-known contou-r or shape. I prefer, however, the shape shown, in which the bristle-face of the brush is concaved longitudinally. (See Fig. 1). Each tuft of bristles is pointed at the free end, and a large group or combined tuft of bristles, also pointed, as shown at a, is provided at that end of the brush which is farthest from the handle. These characteristics I believe to be valuable in improving the cleansing quality of the brush. I prefer also the tapering form of the back, which is narrowest at its free extremity, inasmuch as this is most convenient in use, and also the bent or curved shape of the back and handle combined, which is shown in the drawings, inasmuch as when the brush is suspended by means of the hole in the end of the handle the bristleportion thereby is caused to stand out from the wall against poses as the ordinary tooth-brush, but yet having the handleor the neck connecting the same with the back sufficiently flexible toenable the same to yield and bend when'a moderate pressure is transmitted through the handle in applying the brush to a persons teeth during the use of the brush.
In carrying my invention into effect Ipreferably form the back 2 and handle 4: integral with each other, though not necessarily in all embodiments of the invention, employing in the manufacture thereof a tough resilient material which may when properly shaped and proportioned be bent or flexed under the application of the predetermined degree of force, thereby permitting fiexure of the handle and movement of the back and handle relatively to each other, as indicated by the dotted lines in Fig. 1. The resiliency of the material preferably should be such that the said parts when the bending strain is removed will quickly assume their normal relative positions. I have found celluloid to be a convenient and good material for the purpose, it possessing the requisite toughness and resiliency, while it may be readily shaped and otherwise manipulated in the manufacture of the brush. The flexibility may be distributed throughout the handle or the greater part of the length thereof. 'In some cases I confine the same chiefly to the portion of the handle immediately adjacent the back by forming the neck portion, as 7, intermediate the back and the handle of proportionately greater flexibility than the back and handle proper. This enables the brush-head to adapt itself to the contour of the jaw somewhat more freely and otherwise improves the action of the brush. This greater flexibility may in some cases be secured by forming said neck somewhat smaller than the adjacent portions of the back or handle, as shown, so that when pressure is applied the neck will bend more readily than other portions of the handle. Other means of rendering the neck portion more flexible than the back and the han dle proper may be adopted in practice.
A most important advantage of a brush embodying my invention is the fact that no matter how stiff and unyielding the bristles themselves may be the flexibility of the handle if proportioned as I contemplate having it renders practically impossible any such harsh action of the said bristles against the teeth of the user as would tend to occasion discomfort and injury, as in consequence of the application of an undue amount of force to the handle. Vv'hatever force is exerted at the handle within reasonable limits the measure of the pressure of the bristles against the teeth and gums of the user is the degree of flexibility of the handle. This permits the use of firm bris tles in the manufacture of brushes for all users, securing thereby more eflicient and more du rable brushes, the various degrees of firmness or resiliency which it is desired to provide in order to meet diiferent requirements of use being secured by properly proportioning the flexibility of the handle.
What I claim is l. A bristle tooth-brush having a handle which is substantially firm or rigid but which is adapted to yield under a moderate pressure transmitted through the same, substantially as described.
2. A bristle tooth-brush having the back and handle integrally formed from a resilient material to permit yielding when pressure beyond a predetermined degree is applied to the handle.
3. A bristle tooth-brush havinga back and handle and an intermediate neck integrally formed of resilient material, said neck being flexible to permit a movement of the back and handle relatively to each other under pressure applied to the handle.
4. A tooth-brush having a bristle-head and the back and handle thereof being yieldingly connected with each other; whereby pressure applied at the handle will be elastically transmitted to the brush-head and applied by the latter in a yielding manner.
In testimony whereof I affix my signature in presence of two witnesses.
WILLIAM A. MACLEOD.
Witnesses:
GHAs. F. RANDALL, WILLIAM A. COPELAND.
US8673001A 1901-12-21 1901-12-21 Tooth-brush. Expired - Lifetime US758764A (en)

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Cited By (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2445657A (en) * 1945-05-08 1948-07-20 Paul G Bennett Toothbrush
US2527931A (en) * 1945-11-21 1950-10-31 Iskoe Howard Toothbrush with creasable handle
US2583750A (en) * 1947-10-09 1952-01-29 Garland D Runnels Tongue scraper
US2664582A (en) * 1949-11-21 1954-01-05 Morris H Kammann Flexible handle paintbrush
US2690579A (en) * 1951-01-12 1954-10-05 Robert G Backstrom Toothbrush
US3493991A (en) * 1966-09-16 1970-02-10 Giovanni Sassoli De Bianchi S Resilient tooth brush with adjustable pressure point
US5054154A (en) * 1989-07-15 1991-10-08 M & C Schiffer Gmbh Toothbrush with flexible head
US5735012A (en) * 1997-04-01 1998-04-07 Chesebrough-Pond's Usa Co., Division Of Conopco, Inc. Resiliently flexible toothbrush
US5758383A (en) * 1995-12-29 1998-06-02 Colgate-Palmolive Company Contouring toothbrush head
US5765254A (en) * 1995-11-29 1998-06-16 Radius Inc. Toothbrush with flexible neck
USD413728S (en) * 1997-12-17 1999-09-14 Colgate-Palmolive Company Toothbrush
US20020152570A1 (en) * 1995-12-29 2002-10-24 Douglas Hohlbein Contouring toothbrush head
US6652550B1 (en) * 1999-07-23 2003-11-25 Dent Care Co., Ltd. Tongue cleaning device
US20050166344A1 (en) * 2002-09-20 2005-08-04 Colgate-Palmolive Company Oral care implement
USD628389S1 (en) 2009-12-23 2010-12-07 Colgate-Palmolive Company Tissue cleaner
USD628808S1 (en) 2009-12-23 2010-12-14 Colgate-Palmolive Company Toothbrush
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
USD780457S1 (en) 2014-12-23 2017-03-07 Colgate-Palmolive Company Oral care implement
USD820600S1 (en) * 2016-10-19 2018-06-19 Annie International, Inc. Hair brush
US10021959B2 (en) 2014-12-23 2018-07-17 Colgate-Palmolive Company Oral care implement having multi-component handle
US10182644B2 (en) 2014-12-23 2019-01-22 Colgate-Palmolive Company Oral care implement
US10226118B2 (en) 2014-12-23 2019-03-12 Colgate-Palmolive Company Oral care implement having multi-component handle
USD850117S1 (en) * 2016-10-19 2019-06-04 Annie International, Inc. Double-sided hair brush
US10426250B2 (en) 2014-12-23 2019-10-01 Colgate-Palmolive Company Oral care implement
US10455931B2 (en) 2014-12-23 2019-10-29 Colgate-Palmolive Company Oral care implement
US10595628B2 (en) 2014-12-23 2020-03-24 Colgate-Palmolive Company Oral care implement
US10660430B2 (en) 2014-12-23 2020-05-26 Colgate-Palmolive Company Oral care implement having multi-component handle
US10687610B2 (en) 2014-12-23 2020-06-23 Colgate-Palmolive Company Oral care implement
US10743646B2 (en) 2014-12-23 2020-08-18 Colgate-Palmolive Company Oral care implement
US20210339415A1 (en) * 2020-04-30 2021-11-04 Bic Violex S.A. Skincare device handle with flexible portion
US11229281B2 (en) 2014-12-23 2022-01-25 Colgate-Palmolive Company Oral care implement
US11291293B2 (en) 2014-12-23 2022-04-05 Colgate-Palmolive Company Oral care implement
USD960582S1 (en) 2020-12-10 2022-08-16 Colgate-Palmolive Company Oral care refill head
US11517412B2 (en) 2017-12-12 2022-12-06 Colgate-Palmolive Company Oral care implement
USD997567S1 (en) 2018-12-18 2023-09-05 Colgate-Palmolive Company Electric toothbrush
US11833004B2 (en) 2017-12-12 2023-12-05 Colgate-Palmolive Company Oral care implement and handle and refill head thereof

Cited By (61)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2445657A (en) * 1945-05-08 1948-07-20 Paul G Bennett Toothbrush
US2527931A (en) * 1945-11-21 1950-10-31 Iskoe Howard Toothbrush with creasable handle
US2583750A (en) * 1947-10-09 1952-01-29 Garland D Runnels Tongue scraper
US2664582A (en) * 1949-11-21 1954-01-05 Morris H Kammann Flexible handle paintbrush
US2690579A (en) * 1951-01-12 1954-10-05 Robert G Backstrom Toothbrush
US3493991A (en) * 1966-09-16 1970-02-10 Giovanni Sassoli De Bianchi S Resilient tooth brush with adjustable pressure point
US5054154A (en) * 1989-07-15 1991-10-08 M & C Schiffer Gmbh Toothbrush with flexible head
US5765254A (en) * 1995-11-29 1998-06-16 Radius Inc. Toothbrush with flexible neck
US20020152570A1 (en) * 1995-12-29 2002-10-24 Douglas Hohlbein 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
US5758383A (en) * 1995-12-29 1998-06-02 Colgate-Palmolive Company Contouring toothbrush head
US6073299A (en) * 1995-12-29 2000-06-13 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
US8857003B2 (en) 1995-12-29 2014-10-14 Colgate-Palmolive Company Contouring toothbrush head
WO1998043515A1 (en) 1997-04-01 1998-10-08 Unilever Plc Resiliently flexible toothbrush
US5735012A (en) * 1997-04-01 1998-04-07 Chesebrough-Pond's Usa Co., Division Of Conopco, Inc. Resiliently flexible toothbrush
USD413728S (en) * 1997-12-17 1999-09-14 Colgate-Palmolive Company Toothbrush
US6652550B1 (en) * 1999-07-23 2003-11-25 Dent Care Co., Ltd. Tongue cleaning device
US7908699B2 (en) 2001-07-03 2011-03-22 Colgate-Palmolive Company Oral care implement
US8079110B2 (en) 2001-07-03 2011-12-20 Colgate-Palmolive Company Oral care implement
US8839481B2 (en) 2002-08-09 2014-09-23 Colgate-Palmolive Company Oral care implement
US8990996B2 (en) 2002-08-09 2015-03-31 Colgate-Palmolive Company Toothbrush
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
US9545148B2 (en) 2002-08-09 2017-01-17 Colgate-Palmolive Company Oral care implement
US9167888B2 (en) 2002-08-09 2015-10-27 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
US10512323B2 (en) 2002-08-09 2019-12-24 Colgate-Palmolive Company Oral care implement
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
USD628808S1 (en) 2009-12-23 2010-12-14 Colgate-Palmolive Company Toothbrush
USD628389S1 (en) 2009-12-23 2010-12-07 Colgate-Palmolive Company Tissue cleaner
US10835026B2 (en) 2014-12-23 2020-11-17 Colgate-Palmolive Company Oral care implement
US10687610B2 (en) 2014-12-23 2020-06-23 Colgate-Palmolive Company Oral care implement
US10182644B2 (en) 2014-12-23 2019-01-22 Colgate-Palmolive Company Oral care implement
US10226118B2 (en) 2014-12-23 2019-03-12 Colgate-Palmolive Company Oral care implement having multi-component handle
USD1004980S1 (en) 2014-12-23 2023-11-21 Colgate-Palmolive Company Oral care implement
US10426250B2 (en) 2014-12-23 2019-10-01 Colgate-Palmolive Company Oral care implement
US10455931B2 (en) 2014-12-23 2019-10-29 Colgate-Palmolive Company Oral care implement
US11779102B2 (en) 2014-12-23 2023-10-10 Colgate-Palmolive Company Oral care implement
US10595628B2 (en) 2014-12-23 2020-03-24 Colgate-Palmolive Company Oral care implement
USD883676S1 (en) 2014-12-23 2020-05-12 Colgate-Palmolive Company Oral care implement and portions thereof
US10660430B2 (en) 2014-12-23 2020-05-26 Colgate-Palmolive Company Oral care implement having multi-component handle
US10021959B2 (en) 2014-12-23 2018-07-17 Colgate-Palmolive Company Oral care implement having multi-component handle
US10743646B2 (en) 2014-12-23 2020-08-18 Colgate-Palmolive Company Oral care implement
USD780457S1 (en) 2014-12-23 2017-03-07 Colgate-Palmolive Company Oral care implement
US11291293B2 (en) 2014-12-23 2022-04-05 Colgate-Palmolive Company Oral care implement
US11229281B2 (en) 2014-12-23 2022-01-25 Colgate-Palmolive Company Oral care implement
USD820600S1 (en) * 2016-10-19 2018-06-19 Annie International, Inc. Hair brush
USD850117S1 (en) * 2016-10-19 2019-06-04 Annie International, Inc. Double-sided hair brush
US11517412B2 (en) 2017-12-12 2022-12-06 Colgate-Palmolive Company Oral care implement
US11833004B2 (en) 2017-12-12 2023-12-05 Colgate-Palmolive Company Oral care implement and handle and refill head thereof
USD997567S1 (en) 2018-12-18 2023-09-05 Colgate-Palmolive Company Electric toothbrush
US20210339415A1 (en) * 2020-04-30 2021-11-04 Bic Violex S.A. Skincare device handle with flexible portion
US11648700B2 (en) * 2020-04-30 2023-05-16 BIC Violex Single Member S.A. Skincare device handle with flexible portion
USD960582S1 (en) 2020-12-10 2022-08-16 Colgate-Palmolive Company Oral care refill head

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