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US1691863A - Toothbrush - Google Patents

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Publication number
US1691863A
US1691863A US67654623A US1691863A US 1691863 A US1691863 A US 1691863A US 67654623 A US67654623 A US 67654623A US 1691863 A US1691863 A US 1691863A
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Patent type
Prior art keywords
tooth
brush
figure
teeth
invention
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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
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Inventor
Robert H Van Sant
Original Assignee
Robert H Van Sant
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    • AHUMAN NECESSITIES
    • A46BRUSHWARE
    • A46BBRUSHES
    • A46B9/00Arrangements of the bristles in the brush body
    • A46B9/005Arrangements of the bristles in the brush body where the brushing material is not made of bristles, e.g. sponge, rubber or paper
    • 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

NOV. 13, 192, 1,691,863

R. H. VAN SANT TOOTHBRUSH Filed Nov. 25, 1923 I g Z 19 19 /6 ,ZL/ /Z /Z j Patented Nov. 13, 1928.

PATENT OFFICE.

" ROBERT E. VAN SANT, OF CHICAGO, ILLINOIS.

,TOOTHBRUSH.

Application filed November 23, 1923. Serial No. 676,548.

' a tooth brush that will have a scraping action and also serve as a vehicle for tooth paste to more efficiently utilize such paste to polish the tooth enamel.

It is also an object of this invention to provide a tooth brush composed of cup shaped segments adapted to have a vacuum cup effeet that will suck foreign matter from crevices and conversely will force tooth paste and fluid through the gaps between the teeth.

It is a further object. of this invention to provide a form of molded rubber tooth brush that can be renewed in'the handle whenever for any reason such an action becomes desirable.

Other and further important objects of this invention will be apparent from the disclosures in the specification and accompanying drawings.

This invention (in a preferred form) is illustrated in the drawings and hereinafter more fully described.

On the drawings:

Figure 1 is a top plan view of a tooth brush embodying the features of this invention.

Figure 2 is a long section on the line 11-11 of Figure 1.

Figure 3 is a cross section on the line III- III of Figure 2.

Figure 4 is a cross section on the line IV-IV of Figure'2.

As shown on the drawings:

The device of this invention comprises a handle 10, which may be either straight or curved as shown and of any desirable material, preferably a white metal or a molded product such as celluloid, hard rubber, or

henol condensates. The handle has a longitudinal slot 11 with tapered side and end walls to form dovetails to retain a complementary base 12 on the tooth brush elements proper in position. This base is provided with a number of stiff pins 12 embedded therein in the softer grades toprevent collapse'of the dovetail and consequent separation from the handle. These pins are not always necessary with the harder grades of rubber which possess suflicient inherent stiffness to retain their position. The tooth brush proper is composed of a series of cup like members formed as-a series of independent elements 15 as shown in the figures. These individual cup like members 15 are formed with a central recess or crater 16 having a sharp rim or edge 17, the whole member 14 or 15 being formed of a very elastic or soft grade of rubber compound whereby the rim 17 will conform to the uneven tooth profile. It is also contemplated to form the moulded rubber into various grades of softness to permit individual choice according to the sensitiveness of the gums and the difficulty experienced in cleaning the teeth.

It is a peculiarity of this form of suction cup that the wet rim serves as a scraper or squeegee to remove tartar from the tooth enamel while the central depression 16 serves as a vehicle for the tooth paste used as a cleaning agent, forming a soft background that forces the paste against the teeth to thoroughly cleanse them in a way utterly impossible of performance with a bristle brush. The. cup like depressions together with the elastic properties of the members also serve to pump the cleansing agent back and forth through the crevices between the teeth thus reachin all surfaces of the teeth. The flexible rims 1? reach into the spaces between the teeth at least as far as the bristles of an ordinary brush would and these rims have the property of scraping thev tartar off the tooth enamel.

The various cup like members 15 are spaced slightly from one another to give greater flexibility to the rims 17 The space between members is partly'filled by matching projections 18 which are formed on each member.

In each figure a form of teat or projection 19 is positioned in the center of the recess or crater and serves to rub tooth paste and the like into the space between teeth and at the margin of the gums while the rims 17 operate with a squeegee action on the broader surfaces of. the teeth.

It will thus be seen that I have invented a highly satisfactory and improved form of tooth brush, that will thoroughly clean even inaccessible portions of the tooth surfaces.

I am awarethat many changes may be made, and numerous details of construction may be varied through a wide range Without departing from the principles of this invention, and therefore do not purpose limiting the patent ranted hereon, otherwise than 5 necessitated y the prior art.

I claim as my invention:

A tooth brush of the class described, comprising a series of spaced moulded members leaving sphericai depressions in the faces thereof, pointed projections in the center of said depressions, and sharp edged rims composed of a flexible material.

I In testimony whereof I have hereunto subscribed my name.

ROBERT H. VAN SANT.

US1691863A 1923-11-23 1923-11-23 Toothbrush Expired - Lifetime US1691863A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US1691863A US1691863A (en) 1923-11-23 1923-11-23 Toothbrush

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US1691863A US1691863A (en) 1923-11-23 1923-11-23 Toothbrush

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US1691863A true US1691863A (en) 1928-11-13

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US1691863A Expired - Lifetime US1691863A (en) 1923-11-23 1923-11-23 Toothbrush

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4471505A (en) * 1979-09-28 1984-09-18 Spademan Richard George Toothbrush and bristle
US6041468A (en) * 1998-03-12 2000-03-28 Colgate-Palmolive Company Prophy toothbrush
US6099315A (en) * 1996-09-20 2000-08-08 Block Drug Company, Inc. Applicator tip for desensitizing agents and method
WO2002026080A1 (en) * 2000-09-27 2002-04-04 Glaxosmithkline Consumer Healthcare Gmbh & Co. Kg Toothbrush
USD612611S1 (en) 2003-02-11 2010-03-30 The Gillette Company Head of a toothbrush
US7934284B2 (en) 2003-02-11 2011-05-03 Braun Gmbh Toothbrushes
US7962992B2 (en) 1996-01-18 2011-06-21 The Procter & Gamble Company Toothbrush with elastomer filled flexible head
US20130255017A1 (en) * 2010-09-30 2013-10-03 Cocgate Palmolive Company Oral care implement
US8584299B2 (en) 2003-04-23 2013-11-19 The Procter & Gamble Company Electric toothbrushes

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4471505A (en) * 1979-09-28 1984-09-18 Spademan Richard George Toothbrush and bristle
US8327492B2 (en) 1996-01-18 2012-12-11 The Procter & Gamble Company Toothbrush with elastomer filled flexible head
US7962992B2 (en) 1996-01-18 2011-06-21 The Procter & Gamble Company Toothbrush with elastomer filled flexible head
US6099315A (en) * 1996-09-20 2000-08-08 Block Drug Company, Inc. Applicator tip for desensitizing agents and method
US6041468A (en) * 1998-03-12 2000-03-28 Colgate-Palmolive Company Prophy toothbrush
JP2004510473A (en) * 2000-09-27 2004-04-08 グラクソスミスクライン・コンシューマー・ヘルスケア・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング・ウント・コムパニー・コマンディットゲゼルシャフトGlaxoSmithKline Consumer Healthcare GmbH & Co. KG toothbrush
US20060162108A1 (en) * 2000-09-27 2006-07-27 Matthias Georgi Toothbrush
WO2002026080A1 (en) * 2000-09-27 2002-04-04 Glaxosmithkline Consumer Healthcare Gmbh & Co. Kg Toothbrush
US20110173765A1 (en) * 2003-02-11 2011-07-21 The Gillette Company Toothbrushes
US7934284B2 (en) 2003-02-11 2011-05-03 Braun Gmbh Toothbrushes
USD612611S1 (en) 2003-02-11 2010-03-30 The Gillette Company Head of a toothbrush
US8695149B2 (en) 2003-02-11 2014-04-15 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
US20130255017A1 (en) * 2010-09-30 2013-10-03 Cocgate Palmolive Company Oral care implement
US9526324B2 (en) * 2010-09-30 2016-12-27 Colgate-Palmolive Company Oral care implement

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