US2220053A - Rotary toothbrush - Google Patents

Rotary toothbrush Download PDF

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Publication number
US2220053A
US2220053A US24491238A US2220053A US 2220053 A US2220053 A US 2220053A US 24491238 A US24491238 A US 24491238A US 2220053 A US2220053 A US 2220053A
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US
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Grant
Patent type
Prior art keywords
brush
teeth
toothbrush
brush head
handle
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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
Ibbie L Pruner
Original Assignee
Ibbie L Pruner
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
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    • AHUMAN NECESSITIES
    • A46BRUSHWARE
    • A46BBRUSHES
    • A46B9/00Arrangements of the bristles in the brush body
    • A46B9/02Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups
    • A46B9/04Arranged like in or for toothbrushes
    • 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
    • A46B2200/00Brushes characterized by their functions, uses or applications
    • A46B2200/10For human or animal care
    • A46B2200/1066Toothbrush for cleaning the teeth or dentures

Description

Oct 29, 1940- A. F. PRUNER ROTARY '.TOOTHBRUSH Filed De v l0, 1938 Patented Oct. 29, 1940 UNITED STATES ROTARY 'roormsiwsn Arthur F. Primer, Oklahoma City, Okla., Ibbie L. Pruner administratrix of the estate of said Arthur F. Pruner, deceased Application December 10, 1938, Serial No. 24459124w 2 claims. (C115-27) This invention relates to improvements in toothbrushes, and more particularly to toothbrushes in which the bristles are mounted in a wheel or rotor and are adapted to enter and remove foreign matter from between the interstices between the teeth as the brush is reciprocated horizontally.

The conventional toothbrush with fixed bristles can only be made to enter and clean the spaces between the teeth by moving the brush vertically, which, to the average individual, is either entirely too much trouble or is beyond the realm of his knowledge. As a consequence the conventional toothbrush used by the average individual does 1`5' not properly clean between the teeth. When the fixed bristle brush is reciprocated horizontally over the teeth, the flexible bristles simply pass over the outer surface of the teeth and do not penetrate the interstices between the teeth.

The chief object of this invention, therefore, is to overcome the above mentioned diiculties, and to enable the average individual to properly clean his teeth as he moves his toothbrush horizontally across his teeth, which is the ordinary 25 and most natural movement for brushing any article.

Another object of the invention is to provide a device of this class which is of simplified construction and embodies a rotatable bristled brush which is easily removable for cleaning or replacement.

A further object of my invention is to provide a toothbrush which not only is possessed of these special attributes, but which is also possessed of the usual attributes of simplicity, cheapness of manufacture and reliability.

The details in the construction of a preferred form of my invention, together with other objects attending its production, will be better understood 40 from the following detailed description when read in connection with the accompanying drawing, which is chosen for illustrative purposes only, and in which,

Figure 1 illustrates the manner of holding and using my improved rotary brush;

Figure 2 is a View illustrating the manner in which the serrated surface of my rotary brush enters the spaces between the teeth adjacent the gums;

Figure 3 is a perspective view of a portion of the brush which I choose to call the brush head;

Figure 4 is a perspective View of the rotatable brush; and,

Figure 5 is a view of the assembled brush, certain parts being in section to illustrate certain preferred details of construction. y

Like characters of reference designate like parts in all the gures. I

As will be seen from the drawing, my toothbrush comprises three main elements, namely, a` brush head which is designated as a whole by the numeral 6; a` rotatable wheel-like brush, which is designated as a whole by the numeral 1; and a handle 8.

The brush head includes a pair of substantially semi-circular parallel side Walls S and Il) which are spaced apart by an integral peripheral wall I I. Each of the side walls 9 and I Il are preferably provided with aligned substantially-semicircular offset portions I2 and I3 which serve to rotatably receive the opposite ends of/"a bristle holding rotor I4, which will be hereinafter described.

Near their approximate center lines the Side walls 9 and I are provided with aligned opposite axle sockets I5 and I6 which serve to journal the opposite ends of an axle I1 on which the rotor I4 is mounted.

The peripheral wall I I of the brush head is provided with a threaded lateral handle connection which is divided longitudinally into two semicylindrical portions I8 and I9, the base of each half of this connection being rigidly connected in any suitable manner to the peripheral wall near one of its ends. As a continuation of the division between the two handle connection parts I8 and I9, the peripheral wall I I is slotted longitudinally to a point near its opposite end, the slot being designated by the numeral 22. This slot 22 permits the side Walls 9 and I0 to be moved slightly apart to release the opposite ends of the brush axle Il from their positions in the bearings I5 and IB, thus facilitating the removal of the brush 'I from the brush head, for cleaning or for replacement.

The brush I comprises a cylindrical rotor I4 in the peripheral surface of which are mounted a I The rotor I4 is mounted on an axle l1, the ends of which project a short distance from either end of the rotor and are adapted to be journaled in the bearings I5 and I6 of the brush head. The

size of the brush head'is, of course, sufficient topermit the free rotation ofthe brush 1 therein.

In assembling the toothbrush, after the brush V'l hasbeen rotatably positioned between the side walls of .the brush head', as just explained, the twovhalv'e's of the handle connection are manually pressed together and linserte-cl into the threaded end of the handle 8 andthe handle 8 is then screwed tightly on to the brush head'.

' This handle 8 naturally holds the side Walls 9 and lll of the brush head rigidly positioned with relation to each other, whichpositioning naturally prevents the accidental or inadvertent removal of the brush 'l from` the head. v

As previously mentioned the toothbrush `is moved in horizontal manner back and forth across-the teeth, the brush l being forced to rotate by itsv Contact with the teeth.. The long serrations 2'0 of the brush are` preferably spaced apart a distance so that adjacent ones will enter vthe interstices at the opposite sides of each tooth, While the short serrations 2! contact the outer surface of each tooth. 'I'he operation is repeated on the inside surface of the teeth. By placing the periphery ofthe brush 'l adjacent the gums While I have described and illustrated a specie embodiment of my invention, I am aware that numerous alterations and changes may be made therein and I do not wish to be limited except by the prior art and by the scope of the appended claims.

I claim:

1..As an article of manufacture, a toothbrush comprising: a hollow substantially semi-cylindrical brush head; a rotatable brush having a serrated peripheral bristled surface journaled in side walls of said brush head, alternate ones of the serrated portions of said bristled surface being of greater length than the intermediate serrated portions thereof; and a handle removably attached to said brush head, the longitudinal axis of said handle being substantially at right angles to the axis of rotation of said brush.

2. As. an article of manufacture, a toothbrush comprising: a hollow substantially semi-cylindri cal brush head having two parallel semi-circular side walls spaced apart by an integral peripheral wall; a longitudinal slct in said peripheral wall extending from one of its ends to a point near its other end; a threaded substantially cylindrical longitudinally bisected laterally projecting han dle connection rigidly attached to said peripheral wall, the base of each portion being immediately adjacent the open end of the longitudinal slot in said peripheral wall; an elongated handle having a threaded bore in one of its ends, said bore adapted to receive said bisected laterally projecting handle connection; and a substantially wheel-like brush removably journaled for free rotation between the side walls of said brush head.

ARTHUR F. PRUNER.

US2220053A 1938-12-10 1938-12-10 Rotary toothbrush Expired - Lifetime US2220053A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US2220053A US2220053A (en) 1938-12-10 1938-12-10 Rotary toothbrush

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US2220053A US2220053A (en) 1938-12-10 1938-12-10 Rotary toothbrush

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US2220053A true US2220053A (en) 1940-10-29

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Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4979256A (en) * 1989-06-06 1990-12-25 Branford William G Toothbrush with multiple rotary brush members
US5269038A (en) * 1991-03-29 1993-12-14 Bradley Terry G Rocker toothbrush
US5398366A (en) * 1991-03-29 1995-03-21 Bradley; Terry Rocker toothbrush
US6389634B1 (en) * 1998-11-24 2002-05-21 Gillette Canada Company Oral devices
US6823554B1 (en) 2000-10-05 2004-11-30 Gillette Canada Company Oral devices
US6826797B1 (en) * 2000-05-18 2004-12-07 Gillette Canada Company Oral devices
US20070233165A1 (en) * 2006-04-04 2007-10-04 Wagstaff Robert K Tongue cleaning device
US20090056045A1 (en) * 2007-09-03 2009-03-05 Brian Cho Multi-directional toothbrush for protective teeth
US20090282628A1 (en) * 2003-02-11 2009-11-19 The Gillette Company Toothbrushes
US20100154155A1 (en) * 2008-06-16 2010-06-24 Timothy Corcoran Repp Rotary basting brush
US7941886B2 (en) 2003-09-19 2011-05-17 Braun Gmbh Toothbrushes
JP4908644B1 (en) * 2011-05-09 2012-04-04 幹雄 斉藤 toothbrush
JP5149450B1 (en) * 2012-06-26 2013-02-20 幹雄 斉藤 Rotation toothbrush
US8584299B2 (en) 2003-04-23 2013-11-19 The Procter & Gamble Company Electric toothbrushes
JP5706564B1 (en) * 2014-07-07 2015-04-22 斉藤 幹雄 Rotation toothbrush.

Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4979256A (en) * 1989-06-06 1990-12-25 Branford William G Toothbrush with multiple rotary brush members
GB2248385A (en) * 1989-06-06 1992-04-08 William Gerhard Branford Toothbrush with rotary brush member(s)
FR2668045A1 (en) * 1989-06-06 1992-04-24 Branford William Toothbrush
GB2248385B (en) * 1989-06-06 1994-07-27 William Gerhard Branford Toothbrush with multiple rotary brush members
US5269038A (en) * 1991-03-29 1993-12-14 Bradley Terry G Rocker toothbrush
US5398366A (en) * 1991-03-29 1995-03-21 Bradley; Terry Rocker toothbrush
US6471300B1 (en) * 1998-06-22 2002-10-29 Hideo Tomiyama Toothbrush and manufacturing method thereof
US6389634B1 (en) * 1998-11-24 2002-05-21 Gillette Canada Company Oral devices
US6826797B1 (en) * 2000-05-18 2004-12-07 Gillette Canada Company Oral devices
US6823554B1 (en) 2000-10-05 2004-11-30 Gillette Canada Company Oral devices
US8695149B2 (en) 2003-02-11 2014-04-15 Braun Gmbh Toothbrushes
US20110173765A1 (en) * 2003-02-11 2011-07-21 The Gillette Company Toothbrushes
US20090282628A1 (en) * 2003-02-11 2009-11-19 The Gillette Company Toothbrushes
US7958589B2 (en) 2003-02-11 2011-06-14 The Gillette Company Toothbrushes
US7934284B2 (en) 2003-02-11 2011-05-03 Braun Gmbh Toothbrushes
US8584299B2 (en) 2003-04-23 2013-11-19 The Procter & Gamble Company Electric toothbrushes
US8955186B2 (en) 2003-04-23 2015-02-17 The Procter & Gamble Company Electric toothbrushes
US7941886B2 (en) 2003-09-19 2011-05-17 Braun Gmbh Toothbrushes
US9204949B2 (en) 2003-09-19 2015-12-08 The Gillettte Company Toothbrushes
US8621698B2 (en) 2003-09-19 2014-01-07 Braun Gmbh Toothbrushes
US20070233165A1 (en) * 2006-04-04 2007-10-04 Wagstaff Robert K Tongue cleaning device
US7676875B2 (en) * 2007-09-03 2010-03-16 Brian Cho Multi-directional toothbrush for protective teeth
US20090056045A1 (en) * 2007-09-03 2009-03-05 Brian Cho Multi-directional toothbrush for protective teeth
US20100154155A1 (en) * 2008-06-16 2010-06-24 Timothy Corcoran Repp Rotary basting brush
WO2012153742A3 (en) * 2011-05-09 2013-05-23 Saito Mikio Toothbrush
WO2012153742A2 (en) * 2011-05-09 2012-11-15 Saito Mikio Toothbrush
JP4908644B1 (en) * 2011-05-09 2012-04-04 幹雄 斉藤 toothbrush
JP5149450B1 (en) * 2012-06-26 2013-02-20 幹雄 斉藤 Rotation toothbrush
JP5706564B1 (en) * 2014-07-07 2015-04-22 斉藤 幹雄 Rotation toothbrush.
WO2016006704A3 (en) * 2014-07-07 2016-05-06 斉藤 幹雄 Rotary toothbrush
CN106659291A (en) * 2014-07-07 2017-05-10 齐藤干雄 Rotary toothbrush

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