Toothbrush for simultaneous cleaning of teeth on both sides

Assignee: Individual

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Filing: 1986-06-14

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Granted: 1988-07-19

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Expires: 2006-06-14

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Abstract

Abstract The toothbrush for cleaning both sides of the teeth simultaneously consists of a handle (1) with at least one bristle holder (3, 4) of U-shaped cross section, the legs of said U-shaped cross section having bristles (6) facing inward. Relative to the bristle holder (3, 4) the handle (1) is constructed pivotally about an axis (7) which when the toothbrush is being used is parallel to the axis of the body, and/or relative to the web (2) at least one bristle holder (3 or 4) is pivotal about an axis (8) which is parallel to the teeth when the toothbrush is being used. The bristles (6) are inclined forward and backward away from the web (2) at an angle α of preferably 3° to 5°, as well as additionally or alternatively in the direction in which the toothbrush is pushed at an angle of β of preferably 8° to 10° seen from the middle of the web.

Inventors

👤 Manfred Haeusser
👤 Konstantin Wolpalka

Bibliographic Details

Application Number —

Jurisdiction US

Data Source google_patents

Last Synchronized 2026-11-08 07:00

CPC Classifications

A; A46; A46B; A46B9/00; A46B9/02; A46B9/04; A46B9/045; A46B7/00; A46B7/06; A46B2200/00; A46B2200/10; A46B2200/1066

Claims Analysis

Total Claims: 4

Claim 1

Independent Claim 175 words

A toothbrush for the simultaneous all round cleaning and brushing of the upper and lower rows of teeth of a person's mouth, comprising a bristle holder and a handle, said handle being connected to said bristle holder through a flexible connection means permitting relative rotation between said handle and said bristle holder, said bristle holder including a central web from which first and second limbs extend so that the bristle holder is substantially H-shaped in cross-section, said limbs having surfaces substantially facing each other and having bristles extending from said surfaces of said respective limbs at an angle to said central web within the range of 1 to about 10°, said handle and said central web lying substantially in the same plane, said connection means being provided by a weakening of the material comprising said connection means between said handle and said central web so as to provide elastic rotation of said bristle holder about an axis parallel to the teeth, thereby enabling said bristle holder to more easily adapt to different individual jaw curvatures.

Claim 2

Dependent Claim 175 words

Claim 3

Dependent Claim 42 words

The toothbrush as claimed in claim 1 where at least some of said bristles extending from said respective limbs have an additional inclination of from about 3° to about 15° in a plane extending parallel to the plane of said central web.

Claim 4

Dependent Claim 31 words

The toothbrush as claimed in claim 1 in that at least some of the bristles extending from one of said limbs are softer than those in the other of said limbs.

References Cited (Backward Citations)

US1679946A Cited

CH155730A Cited

CH179403A Cited

US2244615A Cited

DE825536C Cited

FR1126824A Cited

FR1203916A Cited

CH401903A Cited

US3188672A Cited

US4115894A Cited

WO1982000406A1 Cited

US4366592A Cited

US4428091A Cited

WO1984000684A1 Cited

USPTO Annuity & Maintenance Windows

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1991-07-19	1992-01-18	1992-07-19	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1995-07-19	1996-01-18	1996-07-19	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1999-07-19	2000-01-18	2000-07-19	$7700.00	Window Closed / Lapsed

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