US1729167A - Toothbrush - Google Patents

Toothbrush Download PDF

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Publication number
US1729167A
US1729167A US266984A US26698428A US1729167A US 1729167 A US1729167 A US 1729167A US 266984 A US266984 A US 266984A US 26698428 A US26698428 A US 26698428A US 1729167 A US1729167 A US 1729167A
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US
United States
Prior art keywords
tooth
asbestos
brush
handle
folded
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
US266984A
Inventor
Walter E Knapp
Original Assignee
Walter E Knapp
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 Walter E Knapp filed Critical Walter E Knapp
Priority to US266984A priority Critical patent/US1729167A/en
Application granted granted Critical
Publication of US1729167A publication Critical patent/US1729167A/en
Anticipated expiration legal-status Critical
Application status is Expired - Lifetime legal-status Critical

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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
    • A46B7/00Bristle carriers arranged in the brush body
    • A46B7/04Bristle carriers arranged in the brush body interchangeably removable bristle carriers
    • 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

W. E. KNAPP Sept. 24, 1929.

TOOTHBRUSH Filed Avril 3, 1928 INVENTOR' BY 2 I 5;

%/3/ AT oRNEY Patented Sept. 24, 1929 UNITED STATES WALTER E. KNAPP, OF LOWELL, MASSACHUSETTS TOOTHBRUSH Application filed April 3,

The present invention relates to tooth brushes.

The principal object of the present invention is to produce a tooth brush which may be maintained in a sanitary condition.

To the accomplishment of this object a feature of the present invention contemplates the provision of a tooth brush having its tooth-engaging surface formed of asbestos.

l/Vith this construction the tooth brush may be purified by fire or by boiling water as the tooth-engaging surface is non-inflammable and not injuriously affected by moisture. vAsbestos may be woven or braided into a convenient form for use. The textile fabric thus produced may be shaped by folding and/or by molding to conform it to the configuration of the teeth.

Other features of the present invention consist in certain devices, combinations and arrangements of parts the advantages of which will be obvious to those skilled in the art from the following description.

The various features of the present invention will be explained in connection with the accompanying drawing, illustrating a simple form of the invention, in which,

Figure 1 is a perspective of the tooth brush;

Fig. 2 is a perspective showing the textile asbestos folded to form the tooth-engaging surface, and

Fig. 3 is a perspective-showing the means for detachably connecting the textile asbestos to the handle of the tooth brush.

Referring to the drawing, the tooth brush comprises a handle 4 and a tooth-engaging portion 5. The tooth-engaging portion 5 is composed of asbestos. Preferably a textile fabric sheet is used, formed by weaving or by braiding. The asbestos sheet is preferably folded, in the manner shown by Fig. 2, about a removable core piece. The interr stices in the base portion of the folded fabric 1928. Serial No. 266,984.

are filled with some material, such as glass, porcelain or clay and the whole is molded to the shape illustrated in Fig. 2. After molding the filled base may then be baked to solidify the filling or binding material. On removing the core a central cuneiform opening 6 is formed into which may be wedged a cuneiform end 7 on the handle 4. The binder in the base portion of the asbestos body portion imparts ample strength thereto for the reception of the handle end and enables the brush to be used in a vigorous manner without disintegration. As shown in Fig. 2 the molding of the asbestos fabric sheet produces a broad base 8 and leaves a longitudinally corrugated tooth-engaging surface 9. The tooth-engaging surface 9 may be molded, if desired, to form the lateral corrugations l0 and the longitudinal concavity 11, Fig. 1.

WVith this construction the tooth-engaging surface 5 may be readily detached from the handle 4 and then subjected to the action of a blue flame or it may be boiled which purifies the asbestos surface without injury thereto. Experience in the use of this tooth brush demonstrates that it massages the gums in a highly beneficial manner Without that tendency to puncture the gums which is a characteristic feature of the lancet-like animal bristle type of tooth brush.

It will be apparent to those skilled in this art that changes may be made in the details of construction, the described and illustrated embodiment of the invention being intended an exploitation of its underlying essentials, the features whereof will be definitely stated in their true scope in the claims hereto appended.

What is claimed as new, is:

1. A. tooth brush having its tooth-brushing surface formed of asbestos.

2 A tooth brush having its tooth-brushing surface formed of a folded layer of textile asbestos.

3. A tooth brush comprising a handle having a cuneiform end and a pad formed of a layer of textile asbestos folded to bring its edges into a tooth-engaging surface and provided with a cuneiform opening for Wedging engagement with the cuneiform end of the handle.

4. A tooth brush pad comprising a layer of textile asbestos folded to bring its edges into a tooth-engaging surface and a binder for holding the folded condition.

layer of asbestos in its WALTER E. KNAPP.

US266984A 1928-04-03 1928-04-03 Toothbrush Expired - Lifetime US1729167A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US266984A US1729167A (en) 1928-04-03 1928-04-03 Toothbrush

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US266984A US1729167A (en) 1928-04-03 1928-04-03 Toothbrush

Publications (1)

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US1729167A true US1729167A (en) 1929-09-24

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Family Applications (1)

Application Number Title Priority Date Filing Date
US266984A Expired - Lifetime US1729167A (en) 1928-04-03 1928-04-03 Toothbrush

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2677842A (en) * 1950-11-07 1954-05-11 Lawrence W Sherwin Toothbrush with dispensable cleansing pad
US3029809A (en) * 1962-04-17 Figure
US4543679A (en) * 1982-10-08 1985-10-01 Oral Ease Inc. Toothbrush assembly combining a handle with a replaceable brush assembly and a replaceable oral hygiene device
US4608968A (en) * 1982-02-19 1986-09-02 Oral Ease Inc. Gum massaging device with internal dispenser
US5407358A (en) * 1993-08-23 1995-04-18 Gruber; Jack Vestibule cleaner
WO1998048662A1 (en) * 1997-04-25 1998-11-05 Ahn Jin Su Anti-dental injury toothbrush
US6510576B1 (en) 2001-06-01 2003-01-28 Jack Gruber Vestibule cleaner and plaque remover
US8549693B2 (en) 2011-04-20 2013-10-08 Gruber, Llc Tooth cleaning device
US8997299B2 (en) 2011-04-20 2015-04-07 Gruber, Llc Tooth cleaning device
USD726418S1 (en) 2011-04-20 2015-04-14 Gruber, Llc Dental cleaning device
USD740033S1 (en) 2011-04-20 2015-10-06 Gruber, Llc Dental cleaning head
USD756121S1 (en) 2011-04-20 2016-05-17 Gruber, Llc Dental cleaning head

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3029809A (en) * 1962-04-17 Figure
US2677842A (en) * 1950-11-07 1954-05-11 Lawrence W Sherwin Toothbrush with dispensable cleansing pad
US4608968A (en) * 1982-02-19 1986-09-02 Oral Ease Inc. Gum massaging device with internal dispenser
US4543679A (en) * 1982-10-08 1985-10-01 Oral Ease Inc. Toothbrush assembly combining a handle with a replaceable brush assembly and a replaceable oral hygiene device
US5407358A (en) * 1993-08-23 1995-04-18 Gruber; Jack Vestibule cleaner
WO1998048662A1 (en) * 1997-04-25 1998-11-05 Ahn Jin Su Anti-dental injury toothbrush
GB2338645A (en) * 1997-04-25 1999-12-29 Ahn Jin Su Anti-dental injury toothbrush
US6510576B1 (en) 2001-06-01 2003-01-28 Jack Gruber Vestibule cleaner and plaque remover
US8549693B2 (en) 2011-04-20 2013-10-08 Gruber, Llc Tooth cleaning device
US8997299B2 (en) 2011-04-20 2015-04-07 Gruber, Llc Tooth cleaning device
USD726418S1 (en) 2011-04-20 2015-04-14 Gruber, Llc Dental cleaning device
USD740033S1 (en) 2011-04-20 2015-10-06 Gruber, Llc Dental cleaning head
USD756121S1 (en) 2011-04-20 2016-05-17 Gruber, Llc Dental cleaning head

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