US569870A - Ilton - Google Patents

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US569870A
US569870A US569870DA US569870A US 569870 A US569870 A US 569870A US 569870D A US569870D A US 569870DA US 569870 A US569870 A US 569870A
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Prior art keywords
backs
brush
bridge
bristles
tooth
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Expired - Lifetime
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    • 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

(No Model.)

E. H, HAMILTON.

TOOTH BRUSH.

No. 569,870. Patented Oct. 20, 1896.

l/VVE/VTUH ATTORNEYS.

V DU WITNESSES:

:umauwa. wnnlunrou n c UNITED STATES PATENT FFICE.

EDWARD HENRY HAMILTON, OF POONA, INDIA.

TOOTH-BRUSH.

SPECIFICATION forming part of Letters Patent No. 569,870, dated October 20, 1896- Application filed June 6, 1896- $erial No.594,497. (No model.) Patented in England October 16,1895.No.19,465.

To all whom it may concern:

Be it known that I, EDW'ARD HENRY HAM- ILTON, a citizen of the United States, residing in the cantonment of Poona, presidency of Bombay, India, have invented a new and Improved Tooth-Brush, (which has been patented in England, No. 19,465, dated October 16, 1895,) of which the following is a full, clear, and exact description.

The object of theinvention is to so combine two tooth-brushes that the combined brushes may be used in the same manner as a single brush and with no more inconvenience, the double brush acting, however, to simultaneously clean the teeth on both the back and front surfaces.

The invention consists in the novel construction and combination of the several parts, as will be hereinafter fully set forth, and pointed out in the claim.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the figures.

Figure 1 is a perspective view of the improved tooth-brush viewed from the back. Fig. 2 is a perspective view of a slightlymodified form of the improved brush viewed from the bottom. Fig. 3 is an end view of the form of brush shown in Fig. 1, and Fig. 4 is a similar view of the form of brush illustrated in Fig. 2.

In carrying out the invention two brushbacks 10 are employed, made of anyapproved material, and these two backs are placed at angles to one another, their bottom faces having opposite inclinations, and the two brushbacks may be connected by a bridge 1l,preferably arched, as shown in Figs. 1 and 3 and the said bridge may also be made of any suitable material, such as spring metal, or it may be made of the same material as that of which the backs are made, or the elevated side edges of the backs may be brought together and firmly secured throughout their entire length, or the two backs may be made integral or from one piece of material. Thus it will be observed that the two backs form a trough of substantially inverted-A shape, closed when the backs are fastened together throughout their length and separated partially when the backs are connected by the bridge 11.

The cleaning material 12, which may be bristles, rubber, or a fiber of any description, or the equivalent of the same, is secured in any suitable or approved manner in the bottom faces of the backs 10, so that the cleaning material 12 of the two backs will face one anotheigand the bottom or working surfaces 13 of the cleaning material of the several backs are inclined in a reverse direction to the inclination of the backs, as shown in Figs. 3 and 4, so that the bristles will be shortest in the upper row of each brush-back and longest in the bottom row, and the upper rows of bristles of the opposing brushes are brought practically to an engagement, and the space is gradually widened between the working surfaces of the two brushes as the lower or longer portions of the bristles are approached.

hen the bridge 11 is employed, it is connected with a handle 14, While the handle in the form of the double brush shown in Fig. 2 connects with the backs 10 where they unite.

It is evident that a brush of this description may be used as conveniently and in the same manner as the ordinary single toothbrush, and that both the back and front surfaces of the teeth will be simultaneously and effectively cleaned.

Having thus described my inventiofi, I claim as new and desire to secure by Letters Patent A tooth-brush comprising two flat backs placed at angles to each other, a bridge 11 connecting said backs and forming an inverted-A-shaped trough, a handle secured to said bridge, and rows of bristles secured in the under faces of said backs and being shortest in the rows adjacent said bridge and longest in the outside rows, said bristles being inclined in a reverse direction to the inclination of said backs, the working surfaces of the rows adjacent said bridge being almost in engagement and the space between said working surfaces being gradually widened as the longer and outer rows are approached, whereby an angular or V-shaped opening is formed by said Working surfaces, as and for the purpose set forth. 7

EDWARD HENRY HAMILTON. lVitnesses:

Knsnoo Cnnmoans,

RAGHUNATH GANESH.

US569870D Ilton Expired - Lifetime US569870A (en)

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Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2528992A (en) * 1946-09-21 1950-11-07 Roy E Barr Toothbrush
US4131967A (en) * 1976-02-03 1979-01-02 Northemann Karl Heinz Toothbrush
US4449266A (en) * 1976-03-02 1984-05-22 Noerthemann Karl Heinz Toothbrush with two segments of bristles
US4457039A (en) * 1982-04-05 1984-07-03 Massari B Toothbrush with anatomically designed handle
US4570282A (en) * 1982-09-27 1986-02-18 Kaufman Martin H Toothbrush
WO1990001281A2 (en) * 1988-01-19 1990-02-22 Ronald William Klinkhammer Toothbrush
US5228466A (en) * 1988-01-19 1993-07-20 Klinkhammer Ronald W Toothbrush
US5351358A (en) * 1992-08-27 1994-10-04 Larrimore Babatu Toothbrush
US5355546A (en) * 1992-12-11 1994-10-18 Scheier Paul A Toothbrush with resilient flexible bristle support
US5432971A (en) * 1992-01-06 1995-07-18 Chung; Angelika Y. B. Foldable toothbrush
US5839149A (en) * 1996-08-26 1998-11-24 Scheier; Paul A. Toothbrush with resilient flexible bristle support
US20080244849A1 (en) * 2002-08-09 2008-10-09 Robert Moskovich Toothbrush
AU2010257380B2 (en) * 2002-08-09 2012-07-05 Colgate-Palmolive Company Flexible dome toothbrush
US8806695B2 (en) 2002-08-09 2014-08-19 Colgate-Palmolive Company Oral care implement having flexibly supported cleaning elements extending in opposite directions
USD792108S1 (en) * 2016-09-19 2017-07-18 Steve Lolis Tooth and gum brush
USD814800S1 (en) * 2016-11-08 2018-04-10 Jimmy Edward Cade, Jr. Toothbrush
USD885061S1 (en) * 2019-11-18 2020-05-26 Shenzhen Hanhui Network Technology Co., Ltd. Electric toothbrush head

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2528992A (en) * 1946-09-21 1950-11-07 Roy E Barr Toothbrush
US4131967A (en) * 1976-02-03 1979-01-02 Northemann Karl Heinz Toothbrush
US4449266A (en) * 1976-03-02 1984-05-22 Noerthemann Karl Heinz Toothbrush with two segments of bristles
US4457039A (en) * 1982-04-05 1984-07-03 Massari B Toothbrush with anatomically designed handle
US4570282A (en) * 1982-09-27 1986-02-18 Kaufman Martin H Toothbrush
WO1990001281A2 (en) * 1988-01-19 1990-02-22 Ronald William Klinkhammer Toothbrush
WO1990001281A3 (en) * 1988-01-19 1990-04-05 Ronald William Klinkhammer Toothbrush
US5228466A (en) * 1988-01-19 1993-07-20 Klinkhammer Ronald W Toothbrush
US5432971A (en) * 1992-01-06 1995-07-18 Chung; Angelika Y. B. Foldable toothbrush
US5351358A (en) * 1992-08-27 1994-10-04 Larrimore Babatu Toothbrush
US5355546A (en) * 1992-12-11 1994-10-18 Scheier Paul A Toothbrush with resilient flexible bristle support
US5839149A (en) * 1996-08-26 1998-11-24 Scheier; Paul A. Toothbrush with resilient flexible bristle support
US20080244849A1 (en) * 2002-08-09 2008-10-09 Robert Moskovich Toothbrush
US7707677B2 (en) * 2002-08-09 2010-05-04 Colgate-Palmolive Company Toothbrush
AU2010257380B2 (en) * 2002-08-09 2012-07-05 Colgate-Palmolive Company Flexible dome toothbrush
US8806695B2 (en) 2002-08-09 2014-08-19 Colgate-Palmolive Company Oral care implement having flexibly supported cleaning elements extending in opposite directions
US9167888B2 (en) 2002-08-09 2015-10-27 Colgate-Palmolive Company Oral care implement having flexibly supported cleaning elements extending in opposite directions
USD792108S1 (en) * 2016-09-19 2017-07-18 Steve Lolis Tooth and gum brush
USD814800S1 (en) * 2016-11-08 2018-04-10 Jimmy Edward Cade, Jr. Toothbrush
USD885061S1 (en) * 2019-11-18 2020-05-26 Shenzhen Hanhui Network Technology Co., Ltd. Electric toothbrush head

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