Patent US5249296A successfully refreshed from Google Patents.
Patent US5209658A successfully refreshed from Google Patents.
US5209658A
Expired / Lapsed
US
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Dental prophy angle
Assignee: YI VENTURES LLC
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Filing: 1992-07-13
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Granted: 1993-05-11
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Expires: 2012-07-13
Abstract
Abstract A disposable dental prophy angle designed to be coupled with a conventional dental tool power source, the angle being used in dental prophylaxis. The dental prophy angle is fabricated from synthetic resin material and comprises a housing presenting a head end and a shank end with a passageway extending between said ends, a drive shaft extending along the passageway, a plurality of sealing rings integrally formed as part of the housing and extending inwardly therefrom into sealing engagement with the drive shaft, and a pair of auger flights integrally formed as part of the shaft for propelling buccal matter along the passageway for ejection through the head end.
Inventors
- 👤 George R. Brahler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:17
CPC Classifications
A; A61; A61C; A61C17/00; A61C17/005
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
87 words
A dental prophy angle comprising: a housing presenting a head end and a shank end with a passageway extending through said housing between said ends; a drive assembly including an output member extending from said head end for coupling a dental tool thereto and including a drive shaft extending along said passageway, said passageway being subject to the entry of matter thereinto from a patient's mouth by way of said head end; and means for ejecting said matter from said passageway and out through said head end.
Claim 2
Dependent Claim
87 words
A dental prophy angle comprising: a housing presenting a head end and a shank end with a passageway extending through said housing between said ends; a drive assembly including an output member extending from said head end for coupling a dental tool thereto and including a drive shaft extending along said passageway, said passageway being subject to the entry of matter thereinto from a patient's mouth by way of said head end; and means for ejecting said matter from said passageway and out through said head end.
Claim 3
Dependent Claim
42 words
The prophy angle as set forth in claim 1, said ejecting means including at least one auger flight extending outwardly from said shaft and configured for propelling said matter along said passageway towards and out through said head end during shaft rotation.
Claim 4
Dependent Claim
31 words
The prophy angle as set forth in claim 2, said housing including structure defining an auger chamber adjacent to said head end, said auger flight being positioned within said auger chamber.
Claim 5
Dependent Claim
39 words
The prophy angle as set forth in claim 2, said housing presenting an inner surface, said prophy angle further including an annular sealing ring extending inwardly from said inner surface towards said shaft into a close sealing relationship therewith.
Claim 6
Dependent Claim
17 words
The prophy angle as set forth in claim 4 further including a plurality of said sealing rings.
Claim 7
Dependent Claim
18 words
The prophy angle set forth in claim 2, said ejecting means including a pair of said auger flights.
Claim 8
Dependent Claim
20 words
The prophy angle as set forth in claim 6, said auger flights being integrally formed as part of said shaft.
Claim 9
Dependent Claim
19 words
The prophy angle as set forth in claim 7, said shaft and flights being composed of synthetic resin material.
Claim 10
Dependent Claim
38 words
The prophy angle set forth in claim 1, said housing presenting an inner surface, said prophy angle further including an annular sealing ring extending inwardly from said inner surface towards said shaft into a close sealing relationship therewith.
Claim 11
Dependent Claim
19 words
The prophy angle as set forth in claim 9, said preventing means including a plurality of said sealing rings.
Claim 12
Dependent Claim
19 words
The prophy angle as set forth in claim 10, said rings being integrally formed as part of said housing.
Claim 13
Dependent Claim
18 words
The prophy angle set forth in claim 11, said rings and housing being formed of synthetic resin material.
Claim 14
Dependent Claim
47 words
The prophy angle as set forth in claim 1, said shaft presenting a forward end adjacent said housing head end, said drive assembly further including a drive gear coupled with said shaft forward end, said output member including an output gear rotatably coupled with said drive gear.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-05-10 | 1996-11-09 | 1997-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-05-10 | 2000-11-09 | 2001-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-05-10 | 2004-11-09 | 2005-05-11 | $7700.00 | Window Closed / Lapsed |