US1943225A - Toothbrush - Google Patents

Toothbrush Download PDF

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Publication number
US1943225A
US1943225A US668846A US66884633A US1943225A US 1943225 A US1943225 A US 1943225A US 668846 A US668846 A US 668846A US 66884633 A US66884633 A US 66884633A US 1943225 A US1943225 A US 1943225A
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United States
Prior art keywords
bristles
tufts
teeth
head
toothbrush
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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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US668846A
Inventor
Harold W Mcintyre
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Harold W Mcintyre
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Publication date
Application filed by Harold W Mcintyre filed Critical Harold W Mcintyre
Priority to US668846A priority Critical patent/US1943225A/en
Application granted granted Critical
Publication of US1943225A publication Critical patent/US1943225A/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
    • A46B9/02Position 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

Description

Jan" 9, 1934;. H. w MclNTYRE 1,943,225

TOOTHBRUSH Filed May 1, 1933 If. W. Mc/Inyrev INVENTOR ATTORNEY Patented Jan. 9, 1934 UNITED STATES PATENT OFFICE 1 Claim.

This invention relates to toothbrushes and has for the primary object, the provision of a device of this character which will more effectively clean teeth both between the latter and their surfaces and especially the surfaces of the teeth at the margins of the gums to remove film and other foreign matter and to impart a massaging action to the gums for keeping the latter in a healthy condition by stimulating the flow of blood therel0 through and at the margins of the gums.

With these and other objects in view this invention consists in certain novel features of construction, combination and arrangement of parts to be hereinafter more fully described and claimed.

For a complete understanding of my invention, reference is to be had to the following description and accompanying drawing, in which Figure 1 is a side elevation illustrating a toothbrush constructed in accordance with my invention.

Figure 2 is a fragmentary plan View illustrating the same.

Figure 3 is a fragmentary side elevation illustrating the brush applied to teeth.

Figure 4 is a sectional view taken on the line 44 of Figure 1 showing the bristles acting upon and between teeth.

Referring in detail to the drawing, the numeral 1 indicates a handle carrying at one end an integral head 2 tapering slightly towards its free end and rounded at said end. The head 2 has secured thereto rows of tufts of bristles 3 and 4. The rows of tufts of bristles extend parallel with each other arranging the tufts of bristles in pairs as best shown in Figure 2 of the drawing. An intermediate row of tufts of bristles 5 is secured to the head and located between the rows of tufts of bristles 3 and 4 with a tuft of bristles arranged between each pair of tufts of bristles 3 and 4. The tufts of bristles 5 are of a shorter length than the tufts of bristles 3 and 4. The tufts of bristles 3, 4 and 5 have their free ends cut to form oppositely inclined beveled edges with each tuft of bristles provided with a crest indicated at 6. The

crests of the tufts of bristles 3 and 4 extend transversely of the head, while the crests of the tufts of bristles 5 extend longitudinally of the head and. at right angles to the crests of the tufts of bristles 3 and 4.

In operation, the tufts of bristles are forced against the teeth with the tufts of bristles 3 and 4 extending between the teeth and the tufts of bristles 5 contacting with the surfaces of the teeth so that a movement of the brush head with respect to the teeth will cause a thorough cleaning of the teeth both between the latter and their surfaces. During the cleaning of the teeth the movement of the brush head is such that the tufts of bristles 3 and 4 do not move from between the teeth, while the tufts of bristles 5 move over the surfaces of the teeth and the marginal edges of the gums removing film and. other foreign matter and also imparting a massaging action to the gums to stimulate the flow of blood therethrough. It will, therefore, be seen that the teeth at their necks or the portions that enter the gums will be thoroughly cleaned by the tufts of bristles 5, accomplishing a result not heretofore attainable by toothbrushes now in use.

The movement of the toothbrush may be across the teeth and also upwardly and downwardly with respect to the teeth.

While I have shown and described the preferred embodiment of my invention, it will be understood that minor changes in construction, combination and arrangement of parts may be made without departing from the spirit and scope of my invention, as claimed.

Having described the invention, I claim:

A toothbrush including a handle having a head, pairs of tufts of bristles secured to the head in parallel rows, an intermediate row of tufts of bristles secured to the head between the parallel rows of tufts of bristles and with each tuft of bristles of the intermediate row positioned between pairs of tufts of bristles of the parallel rows, said intermediate row of tufts of bristles being of a shorter length than the tufts of bristles of the parallel rows, said tufts, of bristles having their ends cut to form opposite beveled faces and presenting to each tuft of bristles a crest, the crests of the parallel rows of tufts of bristles being arranged transversely of the head, while the crests of the intermediate row of tufts of bristles being arranged longitudinally of the head.

HAROLD W. McINTYRE.

US668846A 1933-05-01 1933-05-01 Toothbrush Expired - Lifetime US1943225A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US668846A US1943225A (en) 1933-05-01 1933-05-01 Toothbrush

Applications Claiming Priority (1)

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US668846A US1943225A (en) 1933-05-01 1933-05-01 Toothbrush

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US1943225A true US1943225A (en) 1934-01-09

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Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2567080A (en) * 1946-12-20 1951-09-04 George W Pifer Toothbrush with divergent sweepaction tuft rows
US2797424A (en) * 1954-10-20 1957-07-02 Olson Alfred Toothbrush
US3744078A (en) * 1971-07-14 1973-07-10 J Vallis Nailbrush
US3843991A (en) * 1971-07-14 1974-10-29 J Vallis Nail brush
US4268933A (en) * 1979-11-30 1981-05-26 Sophia Papas Bristles for an interproximal and periodontal toothbrush
US4519111A (en) * 1981-11-06 1985-05-28 Paolo Cavazza Toothbrush having series of bristles of different height
FR2587183A1 (en) * 1985-09-13 1987-03-20 Trentini Gisele Toothbrush comprising bristles of different heights
US4679273A (en) * 1985-08-19 1987-07-14 Seth Okin Dental appliance for cleansing the gingival one third areas of the teeth as well as the sulcular and the embrasure regions thereof
WO1990003162A1 (en) * 1988-09-23 1990-04-05 Frank Hunter Improvements in oral hygiene
US5305492A (en) * 1992-11-03 1994-04-26 Optiva Corporation Brush element for an acoustic toothbrush
US5459899A (en) * 1993-05-24 1995-10-24 Bauer; Jerome Interstitial flossing toothbrush
US5862559A (en) * 1988-09-23 1999-01-26 Hunter; Frank Toothbrush for interproximal and periodontal pocket cleaning
US6035476A (en) * 1998-09-10 2000-03-14 Optiva Corporation Brushhead for a toothbrush
US6041468A (en) * 1998-03-12 2000-03-28 Colgate-Palmolive Company Prophy toothbrush
US6202241B1 (en) * 1998-09-10 2001-03-20 Optiva Corporation Brushhead for use in an acoustic toothbrush
US20030221272A1 (en) * 2002-05-29 2003-12-04 Lehman James P. Toothbrush
US20050060822A1 (en) * 2003-09-19 2005-03-24 Chenvainu Alexander T. Toothbrushes
US20050189000A1 (en) * 2001-01-12 2005-09-01 Cacka Joe W. Flosser with motor integrated with vibrating head
US8595886B2 (en) 2010-06-16 2013-12-03 Dr. Fresh, Llc Bristle configuration
US8943634B2 (en) 2011-05-02 2015-02-03 Water Pik, Inc. Mechanically-driven, sonic toothbrush system
US9468511B2 (en) 2013-03-15 2016-10-18 Water Pik, Inc. Electronic toothbrush with vibration dampening
US9987109B2 (en) 2013-03-15 2018-06-05 Water Pik, Inc. Mechanically-driven, sonic toothbrush and water flosser
USD844997S1 (en) 2016-12-15 2019-04-09 Water Pik, Inc. Toothbrush handle
USD845636S1 (en) 2016-12-15 2019-04-16 Water Pik, Inc. Toothbrush handle
US10449023B2 (en) 2015-07-08 2019-10-22 Water Pik, Inc. Oral cleansing device with energy conservation

Cited By (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2567080A (en) * 1946-12-20 1951-09-04 George W Pifer Toothbrush with divergent sweepaction tuft rows
US2797424A (en) * 1954-10-20 1957-07-02 Olson Alfred Toothbrush
US3744078A (en) * 1971-07-14 1973-07-10 J Vallis Nailbrush
US3843991A (en) * 1971-07-14 1974-10-29 J Vallis Nail brush
US4268933A (en) * 1979-11-30 1981-05-26 Sophia Papas Bristles for an interproximal and periodontal toothbrush
US4519111A (en) * 1981-11-06 1985-05-28 Paolo Cavazza Toothbrush having series of bristles of different height
US4679273A (en) * 1985-08-19 1987-07-14 Seth Okin Dental appliance for cleansing the gingival one third areas of the teeth as well as the sulcular and the embrasure regions thereof
FR2587183A1 (en) * 1985-09-13 1987-03-20 Trentini Gisele Toothbrush comprising bristles of different heights
WO1990003162A1 (en) * 1988-09-23 1990-04-05 Frank Hunter Improvements in oral hygiene
US5862559A (en) * 1988-09-23 1999-01-26 Hunter; Frank Toothbrush for interproximal and periodontal pocket cleaning
US5305492A (en) * 1992-11-03 1994-04-26 Optiva Corporation Brush element for an acoustic toothbrush
WO1994009679A1 (en) * 1992-11-03 1994-05-11 Optiva Corporation A brush element for an acoustic toothbrush
AU673035B2 (en) * 1992-11-03 1996-10-24 Philips Oral Healthcare, Inc A brush element for an acoustic toothbrush
US5459899A (en) * 1993-05-24 1995-10-24 Bauer; Jerome Interstitial flossing toothbrush
US6041468A (en) * 1998-03-12 2000-03-28 Colgate-Palmolive Company Prophy toothbrush
US6035476A (en) * 1998-09-10 2000-03-14 Optiva Corporation Brushhead for a toothbrush
US6202241B1 (en) * 1998-09-10 2001-03-20 Optiva Corporation Brushhead for use in an acoustic toothbrush
WO2000015075A1 (en) * 1998-09-10 2000-03-23 Optiva Corporation Improved brushhead for a toothbrush
US20050189000A1 (en) * 2001-01-12 2005-09-01 Cacka Joe W. Flosser with motor integrated with vibrating head
US20030221272A1 (en) * 2002-05-29 2003-12-04 Lehman James P. Toothbrush
US6851153B2 (en) 2002-05-29 2005-02-08 James P. Lehman Toothbrush
US20050060822A1 (en) * 2003-09-19 2005-03-24 Chenvainu Alexander T. Toothbrushes
US7941886B2 (en) 2003-09-19 2011-05-17 Braun Gmbh Toothbrushes
US9198501B2 (en) 2010-06-16 2015-12-01 Dr. Fresh, Llc Bristle configuration
US8595886B2 (en) 2010-06-16 2013-12-03 Dr. Fresh, Llc Bristle configuration
US9144477B2 (en) 2011-05-02 2015-09-29 Water Pik, Inc. Mechanically-driven, sonic toothbrush system
US8943634B2 (en) 2011-05-02 2015-02-03 Water Pik, Inc. Mechanically-driven, sonic toothbrush system
US9468511B2 (en) 2013-03-15 2016-10-18 Water Pik, Inc. Electronic toothbrush with vibration dampening
US9987109B2 (en) 2013-03-15 2018-06-05 Water Pik, Inc. Mechanically-driven, sonic toothbrush and water flosser
US10449023B2 (en) 2015-07-08 2019-10-22 Water Pik, Inc. Oral cleansing device with energy conservation
USD844997S1 (en) 2016-12-15 2019-04-09 Water Pik, Inc. Toothbrush handle
USD845636S1 (en) 2016-12-15 2019-04-16 Water Pik, Inc. Toothbrush handle

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