Patent US5800367A successfully refreshed from Google Patents.
US5800367A
Expired / Lapsed
US
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Oral irrigator with a stirrup-shaped nozzle holder
Assignee: Trisa Buerstenfabrik AG Triengen
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Filing: 1995-12-20
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Granted: 1998-09-01
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Expires: 2015-12-20
Abstract
Abstract An oral irrigator (1), with a stirrup-shaped nozzle holder (2) which encloses the teeth on both sides via two branches (3), is described. Nozzle openings (23 to 26) are arranged on the inner side of the branches (3) and are oriented at an acute angle (β) to the axis of rotation (4) towards the open end (18) of the nozzle holder (2), in order to direct the nozzle jets (32), in the direction of the root (37), onto the lateral surfaces of the teeth (33).
Inventors
- 👤 Ulrich P. Saxer
- 👤 Franz Fischer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:29
CPC Classifications
A; A61; A61C; A61C17/00; A61C17/02; A61C17/028; A61C17/0211
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
133 words
An oral irrigator comprising a stirrup-shaped nozzle holder for enclosing a tooth on both sides via two branches and which on an inner side has nozzle openings and is connected in a rotatable manner to a tubular element, said nozzle openings being arranged in the branches, and the axes of the nozzle openings on a respective branch are oriented at an acute angle (β) to the axis of rotation and towards the open end of the nozzle holder, in order to direct the nozzle jets, in the direction of a root portion of said tooth, onto the lateral surfaces of said tooth wherein the width of said nozzle holder is no greater than about 15 mm, said irrigator providing a small volume of cleaning fluid which does not require expectoration to be effective.
Claim 2
Dependent Claim
133 words
An oral irrigator comprising a stirrup-shaped nozzle holder for enclosing a tooth on both sides via two branches and which on an inner side has nozzle openings and is connected in a rotatable manner to a tubular element, said nozzle openings being arranged in the branches, and the axes of the nozzle openings on a respective branch are oriented at an acute angle (β) to the axis of rotation and towards the open end of the nozzle holder, in order to direct the nozzle jets, in the direction of a root portion of said tooth, onto the lateral surfaces of said tooth wherein the width of said nozzle holder is no greater than about 15 mm, said irrigator providing a small volume of cleaning fluid which does not require expectoration to be effective.
Claim 3
Dependent Claim
21 words
The oral irrigator of claim 1, wherein the width of the nozzle holder is about 10 mm to about 15 mm.
Claim 4
Dependent Claim
16 words
The oral irrigator of claim 1, wherein each nozzle opening stems from a separate delivery channel.
Claim 5
Dependent Claim
17 words
The oral irrigator of claim 3, wherein said delivery channels are parallel on each of said branches.
Claim 6
Dependent Claim
19 words
The oral irrigator of claim 3, wherein two delivery channels lying on opposite branches lie in the same plane.
Claim 7
Dependent Claim
21 words
The oral irrigator of claim 1, wherein the nozzle openings of at least one branch open into a common delivery channel.
Claim 8
Dependent Claim
27 words
The oral irrigator of claim 6, where a plurality of nozzle axes of the nozzle openings on said one branch are skew in relation to one another.
Claim 9
Dependent Claim
27 words
The oral irrigator of claim 7, wherein the nozzle axes of at least two nozzle openings on opposite ones of said branches lie in the same plane.
Claim 10
Dependent Claim
12 words
The oral irrigator of claim 1 comprising less than 10 nozzle openings.
Claim 11
Dependent Claim
25 words
The oral irrigator of claim 1 wherein an inner side of said branches facing the tooth surface are provided with rubber-elastic protectors which have lips.
References Cited (Backward Citations)
US1500107A
Cited
CH365178A
Cited
US3379192A
Cited
US3489141A
Cited
US4106501A
Cited
US4611992A
Cited
US5360025A
Cited
US4991570A
Cited
DE4208664A1
Cited
US5443386A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-08-31 | 2002-03-02 | 2002-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-08-31 | 2006-03-02 | 2006-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-08-31 | 2010-03-02 | 2010-09-01 | $7700.00 | Window Closed / Lapsed |