US1369664A - Toothbrush - Google Patents

Toothbrush Download PDF

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Publication number
US1369664A
US1369664A US39965720A US1369664A US 1369664 A US1369664 A US 1369664A US 39965720 A US39965720 A US 39965720A US 1369664 A US1369664 A US 1369664A
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US
United States
Prior art keywords
brush
handle
bent
joint
section
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
Inventor
Izawa Riichiro
Original Assignee
Izawa Riichiro
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
Application filed by Izawa Riichiro filed Critical Izawa Riichiro
Priority to US39965720 priority Critical patent/US1369664A/en
Application granted granted Critical
Publication of US1369664A publication Critical patent/US1369664A/en
Anticipated expiration legal-status Critical
Application status is Expired - Lifetime legal-status Critical

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Classifications

    • AHUMAN NECESSITIES
    • A46BRUSHWARE
    • A46BBRUSHES
    • A46B5/00Brush bodies; Handles integral with brushware
    • A46B5/002Brush bodies; Handles integral with brushware having articulations, joints or flexible portions
    • A46B5/0054Brush bodies; Handles integral with brushware having articulations, joints or flexible portions designed to allow relative positioning of the head to body
    • A46B5/0075Brush bodies; Handles integral with brushware having articulations, joints or flexible portions designed to allow relative positioning of the head to body being adjustable and stable during use
    • AHUMAN NECESSITIES
    • A46BRUSHWARE
    • A46BBRUSHES
    • A46B5/00Brush bodies; Handles integral with brushware
    • A46B5/002Brush bodies; Handles integral with brushware having articulations, joints or flexible portions
    • A46B5/0054Brush bodies; Handles integral with brushware having articulations, joints or flexible portions designed to allow relative positioning of the head to body
    • A46B5/0075Brush bodies; Handles integral with brushware having articulations, joints or flexible portions designed to allow relative positioning of the head to body being adjustable and stable during use
    • A46B5/0087Mechanical joint featuring a ball and socket
    • 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
    • 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

BHCHIRO IZAWA, OF KYOTO, JAPAN.

. TOOTHBBUSB.

To al? ulzomv if may concern Be it known that. I. RIICHIRo IZAWA, a

subjectof the Empire of Japan. residing at No. T Furunishi Machi. Nishidoin-Dori Xishikikoji Agaru. Shimokyo Ku, Kyoto, Japan. have invented new and useful Improvements in Toothbrushes. of which the following is a specification.

This invention relates to a tooth brush consisting of a handle so constructed that a finger may be inserted therein. and a brush proper. which is connected with thehandle by a hinge joint,`s0 that the brush part can be bent at the joint. The object of this invention`is to obtain a tooth brush which is adapted to thoroughly clean both the inside and outside of the teeth, but is very simple to handle.

The accompanying drawing shows an example of the construction of my tooth brush, in which Figure 1 is a side view, partly sectional,

Fig. 2. is also a side view illustrating the members bent at its joints;

Fig. 3 is a detail plan view of the first section of the brush proper,

Fig. 4 is a side view of the same section My tooth brush, as shown in the drawy ings. consists of three sections jointed to-4 gether at two places, but the brush proper may be of one section and directly jointed to the handle.

In the drawings. Q 2 are the brush proper` having bristles setin any suitable material, and 3 is the handle. The handle is made hollow for alinger to be thrust thereinto. and is longitudinally incised as at 5 so that it. may firmly fit to various sizes of ngers; or it may be made justlike the handle of a common tooth brush.

The sections 2. 2 and 3 are hinged together by means of pins 4 and 4 in amanner something like a knuckle joint so that the sections 2 and 2l and 3 can be bent to any desired angles.

Specification of Letters Patent.

f Application led J'uly 29, 1920. Serial No. 399,657.A

Patented Feb. 2.2. 1921.

The brush proper may therefore be bent into such a shape as will correspond to the curvature of the row of teeth, and thus every part of the teeth, both -inside and outside, can be thoroughly cleansed.

The joint must' be so constructed that they friction of the contact surface is sulicient to maintain the tooth brush while using it in the shape to which' it is bent. and the outer surface of the same must be smooth. To accomplish these purposes, the construction shown in Figs. 3 to 6 is the preferred one. Y

T o describe it fully. the rear end of the section 2 is semi-spherically hollowed out, forming a socket. 9, and a circular disk-like projection. 8 perforated at the center extends therefrom. The front end 7 of the section 2 is rounded so as to fit the socket 9 and is bifurcated so as to provide a pair of jaws 6 to receive between them the pro- .jection 8. said jaws being perforated to correspond with the perforation ofthe projection 8. If the projection 8 is put in the jaw 6 and a pin. which serves as the pivot, is inserted through the perforations. a joint will be formed which serves my'purposes. The sections thus jointed can be bent to any desired angle. and the friction of the contact surfaces will be suicientto retain the sections in the shape into which they are bent- Moreover, the outer surface of such a joint is smooth. The joint between the section 2 and the handle isthe same as the jointdescribed above.

It is preferable to have the bristles at the free end of the section 2 a little longer than those at other parts.

I claim 1. A tooth brush, comprising a brush member, a second brush member hingedly secured thereto. and a handle member hingedly secured to the second brush member. ,l

2. A tooth brush, comprising a `brush member aiid a handle member, one` of said members being provided at one end thereof with a concavey portion and a perforated projection. the other member. being provided with a pair of jaws adapted to t said vconcave portion and to receivel said projecioo tion, said projection and jaws being pivotally secured together.

v In testimony whereof'I have signed my name to this specification.

Rnonmo i'zAWA.

US39965720 1920-07-29 1920-07-29 Toothbrush Expired - Lifetime US1369664A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US39965720 US1369664A (en) 1920-07-29 1920-07-29 Toothbrush

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US39965720 US1369664A (en) 1920-07-29 1920-07-29 Toothbrush

Publications (1)

Publication Number Publication Date
US1369664A true US1369664A (en) 1921-02-22

Family

ID=23580427

Family Applications (1)

Application Number Title Priority Date Filing Date
US39965720 Expired - Lifetime US1369664A (en) 1920-07-29 1920-07-29 Toothbrush

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US (1) US1369664A (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4165755A (en) * 1977-09-26 1979-08-28 Cassai Gino H Adjustable mascara wand
US4731896A (en) * 1985-10-21 1988-03-22 Tour Odette De Adjustable toothbrush
US4800608A (en) * 1987-10-05 1989-01-31 Key John R Toothbrush
US5165135A (en) * 1988-10-19 1992-11-24 Su Chan B Toothbrush
US5309596A (en) * 1993-03-23 1994-05-10 The Gillette Company Interproximal brush
WO1994022346A1 (en) * 1993-04-06 1994-10-13 Key John R Angular headed toothbrush
US5373602A (en) * 1993-12-15 1994-12-20 Bang; Kook B. Toothbrush
US5377377A (en) * 1993-03-23 1995-01-03 Gillette Canada Inc. Interproximal brush
WO1999037180A1 (en) * 1998-01-27 1999-07-29 Vernon Wilson Toothbrush device
US20040040108A1 (en) * 2002-09-04 2004-03-04 Bruce Kaminstein Rotating dish brush
US20080214977A1 (en) * 2007-03-02 2008-09-04 Nice-Pak Products, Inc. Controllable swab device
US20100313371A1 (en) * 2006-03-21 2010-12-16 Ulrich Kaczmarek Toothbrush and Method for Producing It
US8578544B2 (en) 2007-02-02 2013-11-12 The Gillette Company Oral hygiene implements having flexible elements, and methods of making the same

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4165755A (en) * 1977-09-26 1979-08-28 Cassai Gino H Adjustable mascara wand
US4731896A (en) * 1985-10-21 1988-03-22 Tour Odette De Adjustable toothbrush
US4800608A (en) * 1987-10-05 1989-01-31 Key John R Toothbrush
US5165135A (en) * 1988-10-19 1992-11-24 Su Chan B Toothbrush
US5371915A (en) * 1991-01-28 1994-12-13 Key; John R. Angular headed toothbrush
US5309596A (en) * 1993-03-23 1994-05-10 The Gillette Company Interproximal brush
US5377377A (en) * 1993-03-23 1995-01-03 Gillette Canada Inc. Interproximal brush
WO1994022346A1 (en) * 1993-04-06 1994-10-13 Key John R Angular headed toothbrush
US5373602A (en) * 1993-12-15 1994-12-20 Bang; Kook B. Toothbrush
US5956797A (en) * 1996-11-06 1999-09-28 Wilson; Vernon C. Toothbrush device
WO1999037180A1 (en) * 1998-01-27 1999-07-29 Vernon Wilson Toothbrush device
US20040040108A1 (en) * 2002-09-04 2004-03-04 Bruce Kaminstein Rotating dish brush
US6760949B2 (en) * 2002-09-04 2004-07-13 Bruce Kaminstein Rotating dish brush
US20100313371A1 (en) * 2006-03-21 2010-12-16 Ulrich Kaczmarek Toothbrush and Method for Producing It
US8578544B2 (en) 2007-02-02 2013-11-12 The Gillette Company Oral hygiene implements having flexible elements, and methods of making the same
US9504312B2 (en) 2007-02-02 2016-11-29 The Gillette Company Llc Oral hygiene implements having flexible elements, and methods of making the same
US20080214977A1 (en) * 2007-03-02 2008-09-04 Nice-Pak Products, Inc. Controllable swab device
US8123712B2 (en) * 2007-03-02 2012-02-28 Professional Disposables International, Inc. Controllable swab device

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