US1643217A - Toothbrush - Google Patents

Toothbrush Download PDF

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Publication number
US1643217A
US1643217A US717789A US71778924A US1643217A US 1643217 A US1643217 A US 1643217A US 717789 A US717789 A US 717789A US 71778924 A US71778924 A US 71778924A US 1643217 A US1643217 A US 1643217A
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US
United States
Prior art keywords
brush
bristles
bristle
invention
back
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.)
Expired - Lifetime
Application number
US717789A
Inventor
Lazarus Solomon Andrade
Original Assignee
Lazarus Solomon Andrade
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.)
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Publication date
Priority to GB1643217X priority Critical
Application filed by Lazarus Solomon Andrade filed Critical Lazarus Solomon Andrade
Application granted granted Critical
Publication of US1643217A publication Critical patent/US1643217A/en
Anticipated expiration legal-status Critical
Application status is Expired - Lifetime legal-status Critical

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    • AHUMAN NECESSITIES
    • A46BRUSHWARE
    • A46BBRUSHES
    • A46B7/00Bristle carriers arranged in the brush body
    • A46B7/06Bristle carriers arranged in the brush body movably during use, i.e. the normal brushing action causing movement
    • A46B7/10Bristle carriers arranged in the brush body movably during use, i.e. the normal brushing action causing movement as a rotating cylinder
    • AHUMAN NECESSITIES
    • A46BRUSHWARE
    • A46BBRUSHES
    • A46B3/00Brushes characterised by the way in which the bristles are fixed or joined in or on the brush body or carrier
    • A46B3/18Brushes characterised by the way in which the bristles are fixed or joined in or on the brush body or carrier the bristles being fixed on or between belts or wires
    • 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

S. A. LAZARUS sept. 20, 1927. 5 3

TOOTHBRUSH Filed June 4', 1924 Pa-ems Sept. 20,1927.

UNITED STATES.

- Q 1. 4 .211 PATENT OFFICE..-

sonoiron nmmn imiwa'or LONDON, 'nnemnn."

roo'rrmnusn.

i neamn ma June 4, is, se ial Io. 717,788, and a: Great Britain June ai, 1923.

My invention relates to improvements in tooth-brushes.

According to, the invention I, make the bristle member of a tooth, nail or like brush 5 detachable with respect tothe h dle, on which it is so mounted that it ca revolve thereon in such a manner that, as it is used, a fresh bristle surface is continuously presented to the teeth or other object being cleaned.

In a suitable construction of brush embodying the invention, the bristles are advantageously secured spirally around an axial wire or other support, the ends of which can be sprung or by other suitable means brought into engagement with holes or recesses in a pair of projections or lugs on the brush back, the sa1d holes or recesses form ing bearings in which the cylindrical bristle member can revolve.

As will be understood, thespiral arran ement of the bristle tufts tends to cause 't e' bristle member, when rubbed against the teeth or the like, to rotate on the handle and 5 so to bring a fresh surface continually into use.

To enable the invention to be fully understood I will describe it by reference to. the

accompanying drawing, in which 0 Figure l isa side view of a tooth-brush constructed in accordance wlthmy invention.

Figure 2 is aview'at right-angles to Fig-' ure 1. Figure 3 is a section on the line 3-3, Fig-.

ure 1.

Figure 4 is a cross section of the bristle member of the brush but. drawn to a larger scale than the preceding fi res. 4 Figure 5 is a side view 0 'a modified form of my improved brush and a Figure 6 is a section on the, line 6-P6, Fig ure 5. Figure? is a side view of another modification of the .brush and Figure 8 is a section on the, line 8-8, Fig-' ure a-is the handle ofthe brush, 6 the back thereof and c the cylindrical bristle meni- 0 ber of the. said brush, the said bristle member comprising a series of bristles (1 ar-' rangfd spirally aroundthe axial support or-;s aft e, which, in the drawing, is, formed of a pair of wires twisted spirally andbe-- tweenwhich the bristles are inserted and from the opposite sides of which they procan be reversed in .spondingly tapered;

By the described'construction it will be as understood that when in use, the bristle member a, owing to th spiral arrangement of the bristles, will, v hen rubbed against the teeth, slightly rotate so as7to bring a fresh surface of bristles continually into r use.

. In the formof the invention illustrated in Figures 1 to 3, the rojections or lugs f' are formed integral wit the back b, whilst in the form illustrated in Figures 5 and 6, 76 the said lugs are formed separatelyv from the said back and cemented or otherwise secured thereto. In the form of the invention illustrated in Figures 7 and 8, the projec- .tions or lugs are integral with -a wire it so which engages in a groove or recess in the back I) and is cemented or otherwise fixed therein.

In'all the forms of the invention illustrated, the bristlefmember c is designed to 86 be s rung into or out of engagement with the arings g,-a notch '11 in the face of one of each pair of projections or lugs f facilitating such operation. For instance, when engaging-the said bristle member with the 00 brush back, one end of the shaft e is first engaged'with the bearing in the lug f opposite to the one provided with the notch iand then the other end of the said shaft is moved into engagement with the said notch and then forced down into the bearing into which the notch leads.

A tooth-brush ,made according to the vention, possesses a' number of advantages,

in practice. For example, it.is more "sanl- .100 Y tary than brushes asheretofore made since the ;-'-bristles are more easily. accessible for cleanin and can even be entirely removed from t e back for that purpose. A ain, since the bristles are rotatable on theackor holder afresh surface is constantly being .firesented to the teeth. This prolongs the f fe of the brush; Furthermore, "the bristles sition in the brush this,

again, prolonging its life and when a bristle 11C I member is worn, it can easily be renewed.

Although the invention has been described as applied to tooth-brushes, it is to be understood that it is equally applicable to nail and other brushes.

Having now particularly described and 5 ascertained the nature of my said invention and in what manner the same is to be performed, 'I declare that whatI c1aim is:-

A tooth brush consisting of a handle rovided-at one end with a air ofspaced ugs 10 formed with aligned an opposed bearing recesses and a detachable bristle member, revolubie speet to said-handle,- said member comprising a straight axial shaft havin bristles secured spirally therearound, an adapted to be revolved by the brushmg action, said shaft belng of a resilient nature, whereby it can be s rung into and out of engagement with saitfbearin recesses. SOLOMON NDRADE LAZARUS.

with free rotary motion .with re-

US717789A 1923-06-21 1924-06-04 Toothbrush Expired - Lifetime US1643217A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1643217X 1923-06-21

Publications (1)

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US1643217A true US1643217A (en) 1927-09-20

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3163874A (en) * 1963-11-22 1965-01-05 Bauer Frederick Toothbrush
US4861179A (en) * 1986-03-07 1989-08-29 Henlopen Manufacturing Co., Inc. Mascara brush
US5778476A (en) * 1996-03-12 1998-07-14 John O. Butler Company, Inc. Interdental brushes having roughened, tapered and rounded bristle ends and method of making the same
US20040128784A1 (en) * 2000-07-18 2004-07-08 Ramy Weitz Toothbrush with longitudinal to lateral motion conversion
US20050144745A1 (en) * 2004-01-07 2005-07-07 Russell Bruce M. Toothbrush
US20060042647A1 (en) * 2004-08-30 2006-03-02 Sarah Vogel Method and system for mascara application
US20070056128A1 (en) * 2005-09-09 2007-03-15 Hohlbein Douglas J Toothbrush
US20140096787A1 (en) * 2011-06-09 2014-04-10 F.S.K.Color Mascara

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3163874A (en) * 1963-11-22 1965-01-05 Bauer Frederick Toothbrush
US4861179A (en) * 1986-03-07 1989-08-29 Henlopen Manufacturing Co., Inc. Mascara brush
US5778476A (en) * 1996-03-12 1998-07-14 John O. Butler Company, Inc. Interdental brushes having roughened, tapered and rounded bristle ends and method of making the same
US20040128784A1 (en) * 2000-07-18 2004-07-08 Ramy Weitz Toothbrush with longitudinal to lateral motion conversion
US20050144745A1 (en) * 2004-01-07 2005-07-07 Russell Bruce M. Toothbrush
WO2005067763A1 (en) 2004-01-07 2005-07-28 Colgate-Palmolive Company Toothbrush
US20060042647A1 (en) * 2004-08-30 2006-03-02 Sarah Vogel Method and system for mascara application
US20070056128A1 (en) * 2005-09-09 2007-03-15 Hohlbein Douglas J Toothbrush
US7480955B2 (en) 2005-09-09 2009-01-27 Colgate-Palmolive Company Toothbrush
US20090094768A1 (en) * 2005-09-09 2009-04-16 Colgate-Palmolive Toothbrush
TWI503094B (en) * 2005-09-09 2015-10-11 Colgate Palmolive Co Method of manufacturing a toothbrush head
US8696964B2 (en) 2005-09-09 2014-04-15 Colgate-Palmolive Company Method of manufacturing a toothbrush head
US9364075B2 (en) 2005-09-09 2016-06-14 Colgate-Palmolive Company Toothbrush
US20140096787A1 (en) * 2011-06-09 2014-04-10 F.S.K.Color Mascara

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