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Publication numberUS1927365 A
Publication typeGrant
Publication dateSep 19, 1933
Filing dateMar 15, 1933
Priority dateMar 15, 1933
Publication numberUS 1927365 A, US 1927365A, US-A-1927365, US1927365 A, US1927365A
InventorsNatal Frolio
Original AssigneeNatal Frolio
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Toothbrush
US 1927365 A
Abstract  available in
Images(2)
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Claims  available in
Description  (OCR text may contain errors)

Sept. 19,` 1933.

N. FROLIO TOOTHBRUSH K Filed March l5, 1933 2 Sheets-Sheet l Invenor f1 llorney Sept. 19, 1933.

N. FROLIO TooTHBRUsH Filed March l5, 1933 2 Sheets-Sheel'l 2 Inventor `/llllomey Patented Sept. 19, 1933 PATENT OFFICE UNITED STATES 2 Claims.

'Ihis invention relates to an improved tooth- .brush which in general appearance and construction resembles an ordinary or conventional type brush but which possesses noteworthy structural distinctions and refinements permitting it to function in a more satisfactory and dependable manner.

The principal structural distinction is predicated on the adoption and special adaptation of a .bristle head made up of adjustable companion sections joined together and designed in such a manner as to permit it to be used to clean the outer or exposed surfaces of the teeth in the regular way While at the same time permitting satisfactory access to be hadfor cleaning the inner surfaces of the teeth in a -much more practical and eiective manner than is' capable of accomplishment. with present-day marketed forms of brushes.

So far as I have been able to ascertain from limited research Work, it is new and novel in this particular line of endeavor to provide a toothbrush whose head L1s divided into oomplmental hingedly connected sections withfthe inner sec-.

non formed integrin with the ,hanme,and..rhe

outer section hinged to saidqmnensect-iomtoigether with means for normallvsecring the two sections in longitudinal alinement'forfexterior work and allowing the outer-swingable lvsection to assume an angular position withrespotfto the other section for dependable interiotgworkk,

In perfecting a suitable structurefor-accomplishing these results, I havellevolved'and v.produced an arrangement which'ls'eharaeterized by simplicity and economyf, appropriateness in shape and proportion, one which :is eflicient in performance, and otherwiseffullling the. requirements of the invention to thefextent that it may be properly acclaimed a mechanical achievement in this particular line of endeavor.

Other features and advantages become more readily apparent from theiffollowing rdescription and drawings. In the accompanying employed to designate like parts thr'oughit'the same:

'. Figure 1 is a top plan view of, a toothbrush constructed 'in accordance with the principles of the .present inventive conception showing the Figure 2 is a view in section and elevation, the

section being taken on the plane of the line illustrative drawings, wherein like numeralSf-e brush section in nofi'nal longitudinal alinement.

swingable section swung to its extreme open position in which position it is usabley for inner cleansing work.

Figure 4 is a horizontal sectional view through the assembly shown in Figures 1 and 2.

Figure 5 is a cross section taken approximately on the plane of the line 5-5 of Figure 2, looking in the direction of the arrows.

Figure 6 is a perspective view of the slidable retaining clip or latch.

Figure '7 is a transverse section taken on the plane of the line 7-7 of Figure 1.

Figure 8 is a detail perspective view of one of the leaves of the hinge.

Referring now to the illustrative drawings, f wherein the preferred embodiment of the invention is disclosed,.and diiferentiating the parts by reference numerals, .it will be observed that the handle 9 is of ordinary conguration and proportion and that the head 10 possesses conven- 7. tional configuration and shape but is modified y by the presence thereon of the distinguishing features of this invention;

Th head 10 may be said to comprise an inner rigid orvrelatively stationary section 11 and an .80

opter/,relatively movable or swingable section 12.

'these being connected together by a hinge 13.

The hinge comprises a pair of complemental suitably designed and embellished leaves 14 and 15 joined by a conventional pin and knuckle joint 16. The hinge, as a unit, is seated in an appropriate depression formed in the back of the brush sections and the leaves are flush with the surface of the brush back. This avoids obstructions and permits the device to be reciprocated and oscil- 9 lated in the mouth without subjecting the user to injury.

The hinge joint is' of such construction that it limits the swinging movement vof the section 12 95 to the extreme open position illustrated in Fig- `ure 3. In other words, this swingable section has a movement of approximately sixty degrees. .When the brush sections break joint in this manner itis ready for use on the interior of the mouth. Thebrush bristles are merely designated by the numerals 17.

It isl of course necessary to provide means to permit the 'brush sections 11 and 12 to be retained inl .longitudinal alinement or to` allow the sections to assume the angularrelationship illustrated in Figure 3. vIn accomplishing this, the section 11 is provided with spaced parallel bores 18 which'register with sockets 19 formed in the sections 12. These` bores and socket-.s

serve to accommodate the slidable U-shaped retaining clip or latch 20 (see Figure 6).

As shown in the last-named figure, this latch is made from wire and includes duplicate Varms 21 whose bght or connecting portion .22 are oifset slightly as indicated at 23, this oiset end portion being extended up through elongated clearance slots 24 as shown in Figure 1. The numeral 25 merely designates a linger grip or knob carried by the portion 22 to permit the latch to be slid back and forth.

When slid outwardly, as shown in Figure 1, the extremities ofthe arms 21 extend into the sockets 19 and lock the two brush sections 11 and 12 together in the rigid state shown in Figure 2. When the latch is retracted or slid from left to right as shown in Figure 3, and as permitted by the slots 24, the arms are withdrawn from the sockets 19 allowing the section or unit 12 to have freedom of swinging motion so that it can assume the desired angular position withv respect A to the section 11. Thus, the sections when in the position shown in Figures l andv 2, are suitable for exterior cleaning work, while in the position shown in Figure 3 are satisfactory for interior cleaning work.

A careful consideration of the foregoing description in conjunction with the illustrative drawings will enable the reader to obtain a clear understanding of the purpose, features and aclvantages, the explicit-construction, and the invention as hereinafter claimed.

It is to be understood that minor changes in shape, size, relative proportions, and materials may be resorted tol practice without depart# ing from thefspirit ,ofthe invention Vor the scopel of the inventi'onas now claimed.

Iclaim:v i .l l. Atoothbrush comprising a handle pf conventional* form'having a bristle-equipped brushv head at one end, said head being;` of conventional configuration and design and made up of an inner rigid section and an outer swingable section,

hinge means lconnecting' the two sections tov gether, the inner sections lbeing formed with spaced parallel passages'and theswingable section with alined sockets,`.a U-sha'ped slidable retaining clip having itsarm portions extending through said passages into said sockets to connect the two sections together vin alinement, the inner section being slotted, the adjacent end portionof the clip being oil'set andextended through saidv slots and provided with a nger operating member.

2..A*toothbrush comprising a handle of 'conventional form having a bristle equipped brush head at one end, said head'being of conventional configuration and designed and made up of an inner rigid section and an outer swingable section, hinge-means connecting the twov sections together, the inner section being formed with spaced parallel, passages and the, 'swingable sections with alined sockets,-a. U-sliaped slidable A retaining clip having its arm portions extending through said passages into said sockets to connect the two sections together in alinement.

NATAL FROLIO.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US5628082 *Mar 22, 1995May 13, 1997Colgate-Palmolive CompanyToothbrush with improved efficacy
US5742972 *Feb 21, 1997Apr 28, 1998Gillette Canada Inc.Toothbrush
US5839148 *Apr 17, 1997Nov 24, 1998The Procter & Gamble CompanyToothbrush with both stationary and moving tufts
US5991958 *May 29, 1998Nov 30, 1999Colgate-Pamolive CompanyContouring toothbrush head
US6006394 *Jun 19, 1997Dec 28, 1999Gillette Canada Inc.Toothbrush
US6073299 *Jul 12, 1999Jun 13, 2000Colgate-Palmolive CompanyContouring toothbrush head
US6178582Aug 22, 1996Jan 30, 2001Smithkline Beecham Consumer Healthcare GmbhToothbrush comprising a resilient flex region
US6219874Jul 12, 1995Apr 24, 2001The Procter & Gamble Co.Resiliently flexible bristle bearing head toothbrush
US6314605Aug 1, 1997Nov 13, 2001The Procter & Gamble CompanyToothbrush
US6314606 *Oct 22, 1999Nov 13, 2001Colgate-Palmolive CompanyContouring toothbrush head
US6327735Feb 17, 1998Dec 11, 2001Smithkline Beecham Consumer Healthcare, GmbhPower tip toothbrush with ball joint
US6408476Jan 17, 1997Jun 25, 2002The Procter & Gamble CompanyToothbrush with elastomer filled flexible head
US6442786Jan 25, 2001Sep 3, 2002Smithkline Beecham Consumer Healthcare GmbhToothbrush comprising a resilient flex region
US6442787 *Jul 3, 2001Sep 3, 2002Colgate-Palmolive CompanyContouring toothbrush head
US6505373Apr 18, 2001Jan 14, 2003The Procter & Gamble CompanyToothbrush
US6514445Dec 12, 1997Feb 4, 2003The Procter & Gamble CompanyBrush making
US6675428Dec 15, 2000Jan 13, 2004Smithkline Beecham Consumer Healthcare GmbhToothbrush comprising a resilient flex region
US6996870 *Apr 1, 2002Feb 14, 2006Colgate-Palmolive CompanyContouring toothbrush head
US7707676Jun 30, 2006May 4, 2010The Procter & Gamble CompanyToothbrush
US7721376Dec 23, 2004May 25, 2010Colgate-Palmolive CompanyOral care implement
US7908699Dec 23, 2004Mar 22, 2011Colgate-Palmolive CompanyOral care implement
US7962992Dec 23, 2005Jun 21, 2011The Procter & Gamble CompanyToothbrush with elastomer filled flexible head
US8060970Mar 11, 2010Nov 22, 2011The Procter & Gamble CompanyToothbrush
US8079110May 26, 2010Dec 20, 2011Colgate-Palmolive CompanyOral care implement
US8327492May 16, 2011Dec 11, 2012The Procter & Gamble CompanyToothbrush with elastomer filled flexible head
US8332985Nov 18, 2011Dec 18, 2012The Procter & Gamble CompanyToothbrush
US8393042Oct 9, 2009Mar 12, 2013Colgate-Palmolive CompanyOral care implement
US8561247Jun 17, 2011Oct 22, 2013Colgate-Palmolive CompanyOral care implement
US8578544Jan 31, 2008Nov 12, 2013The Gillette CompanyOral hygiene implements having flexible elements, and methods of making the same
US8584299Jul 25, 2007Nov 19, 2013The Procter & Gamble CompanyElectric toothbrushes
US8800093Dec 2, 2011Aug 12, 2014Colgate-Palmolive CompanyOral care implement
US8806695Mar 20, 2012Aug 19, 2014Colgate-Palmolive CompanyOral care implement having flexibly supported cleaning elements extending in opposite directions
US8839481May 7, 2013Sep 23, 2014Colgate-Palmolive CompanyOral care implement
US8857003Aug 18, 2008Oct 14, 2014Colgate-Palmolive CompanyContouring toothbrush head
US8876221Aug 23, 2011Nov 4, 2014Colgate-Palmolive CompanyOral care implement
US8943634May 2, 2012Feb 3, 2015Water Pik, Inc.Mechanically-driven, sonic toothbrush system
US8955186Oct 15, 2013Feb 17, 2015The Procter & Gamble CompanyElectric toothbrushes
US8990996Oct 8, 2012Mar 31, 2015Colgate-Palmolive CompanyToothbrush
US20120054971 *Sep 2, 2011Mar 8, 2012Dugan David MAnimal tooth brush
USRE38521Jul 28, 1999May 25, 2004Lingner & Fischer GmbhToothbrush with resiliently flexible head
EP0990401A1 *Aug 22, 1996Apr 5, 2000SmithKline Beecham Consumer Healthcare GmbHToothbrush
EP1240846A2 *Aug 22, 1996Sep 18, 2002SmithKline Beecham Consumer Healthcare GmbHTootbrush
WO1997007707A1 *Aug 22, 1996Mar 6, 1997Hans HalmToothbrush
Classifications
U.S. Classification15/167.1, 15/172
International ClassificationA46B7/06, A46B7/00
Cooperative ClassificationA46B2200/1066, A46B5/0075, A46B5/0025
European ClassificationA46B5/00B1