Patent US4929180A successfully refreshed from Google Patents.
US4929180A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stay full-easy load "turbo" prophylactic polishing cup
Assignee: Individual
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Filing: 1988-12-07
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Granted: 1990-05-29
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Expires: 2008-12-07
Abstract
Abstract The present invention is a dental prophylactic polishing cup of unique design and shape having uniquely shaped turbine like vanes or ribs positioned at an angle to the long axis of the prophy cup in such a manner, that as the prophy cup is rotated during a dental prophylaxis the polishing paste held in the cup and brought to bear against the surface of the tooth will be acted on by the said turbine like vanes or ribs forcing the polishing paste back into the cup counteracting the forces that tend to dislodge and throw the paste out of the cup. Thus the polishing paste is held in the cup for a longer period of time and for a greater number of revolutions of the cup for greater efficiency reducing the number of times the prophy cup must be refilled or reloaded, saving time effort and materials, and making the whole procedure less messy. The turbine like vanes or ribs also make the prophy cup easier to load or fill as the vanes draw the paste into the cup as it is rotated against the polishing paste container. This prophy cup can be made in many different shapes with many varieties as to number and size of the vanes and manners used to attach said cup to the prophy-angle.
Inventors
- 👤 Ronald Moreschini
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:13
CPC Classifications
A; A61; A61C; A61C17/00; A61C17/005
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
94 words
A prophy cup for use with a prophy angle and dental polishing compound comprising: a conically shaped body member, attachment means at the smaller end of said body member, the larger end of said body member having a central opening cavity for holding said polishing compound, and a plurality of internal turbine like vanes or ribs around the inside wall of said cavity, each vane or rib being at a slight angle towards the direction of intended cup rotation so as to hold said compound within the cup cavity during rotation and use thereof.
Claim 2
Dependent Claim
94 words
A prophy cup for use with a prophy angle and dental polishing compound comprising: a conically shaped body member, attachment means at the smaller end of said body member, the larger end of said body member having a central opening cavity for holding said polishing compound, and a plurality of internal turbine like vanes or ribs around the inside wall of said cavity, each vane or rib being at a slight angle towards the direction of intended cup rotation so as to hold said compound within the cup cavity during rotation and use thereof.
Claim 3
Dependent Claim
20 words
A device as set forth in claim 1 wherein said prophy cup attaches to the prophy-angle with a screw shank.
Claim 4
Dependent Claim
16 words
A device as set forth in claim 1 wherin said prophy cup has straight shaped sides.
Claim 5
Dependent Claim
16 words
A device as set forth in claim 1 wherin said prophy cup has convex shaped sides.
Claim 6
Dependent Claim
16 words
A device as set forth in claim 1 wherin said prophy cup has concave shaped sides.
Claim 7
Dependent Claim
31 words
A device as set forth in claim 1 wherein said prophy cup has many varieties as to number and size of the vanes or ribs on the inside of the cup.
Claim 8
Dependent Claim
37 words
A device as set forth in claim 6 wherein said prophy cup is easily loaded or filled due to the shape and position of the vanes or ribs located on the inside surface of the prophy cup.
Claim 9
Dependent Claim
33 words
A device as set forth in claim 1 wherein said internal turbine like vanes or ribs each have a front working surface that is perpendicular to the center line of the prophy cup.
Claim 10
Dependent Claim
42 words
A device as set forth in claim 8 wherein said internal turbine like vanes or ribs each have a buttress like shaped rear or trailing portion that will best support the perpendicular front working surface of said turbine like vanes or ribs.
Claim 11
Dependent Claim
118 words
A device as set forth in claim 9 wherein said internal turbine like vanes or ribs are positioned at an angle to the long axis of the prophy cup in such a manner and way that as the prophy cup is rotated during a dental prophylactic proceedure, the prophylactic polishing paste held in the cup is acted on in such a manner as the force it deeper into the cup holding it there in the cup for a longer period of time and for a greater number of revolutions of the cup, thereby reducing the number of times the operator must stop the dental prophylactic proceedure to reload or refill the prophy cup with the prophylactic polishing paste.
Claim 12
Dependent Claim
83 words
A prophy cup for dental use comprising: an elongated, cylindrical body member; attachment means at one end of said body member for affixing same to a prophy angle for suitable rotation and use thereof; an opening at the other end of said body member into a central cavity for holding polishing compound; a plurality of internal vanes on the inside of said cavity; and each vane being slightly angled in the direction of intended cup rotation for retaining said compound within said cavity.
Claim 13
Dependent Claim
83 words
A prophy cup for dental use comprising: an elongated, cylindrical body member; attachment means at one end of said body member for affixing same to a prophy angle for suitable rotation and use thereof; an opening at the other end of said body member into a central cavity for holding polishing compound; a plurality of internal vanes on the inside of said cavity; and each vane being slightly angled in the direction of intended cup rotation for retaining said compound within said cavity.
Claim 14
Dependent Claim
21 words
The cup of claim 11, wherein each vane is angled so that the vane makes approximately 1/4 turn inside the cup.
Claim 15
Dependent Claim
32 words
The cup of claim 11, wherein each vane is shaped with one flat face substantially perpendicular to the cup center axis, and another portion slope shaped for adding strengh to said vane.
Claim 16
Dependent Claim
27 words
The cup of claim 13, wherein each vane has the outer end thereof tapered to the cup opening so as to end in a thin edge therewith.
Claim 17
Dependent Claim
29 words
The cup of claim 13, wherein each vane diverges from the next adjacent vane in the outward direction from the bottom of the cup cavity to the opening thereof.
Claim 18
Dependent Claim
26 words
The cup of claim 13, together with a skirt-like projection affixed to the attaching end of said cup for protecting the prophy angle from polishing compound.
Claim 19
Dependent Claim
13 words
The cup of claim 13, wherein at least four internal vanes are provided.
Claim 20
Dependent Claim
13 words
The cup of claim 13, wherein at least eight internal vanes are provided.
Claim 21
Dependent Claim
13 words
The cup of claim 13, wherein at least twelve internal vanes are provided.
Claim 22
Dependent Claim
13 words
The cup of claim 13, wherein at least twenty-four internal vanes are provided.
References Cited (Backward Citations)
US4259071A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-05-28 | 1993-11-27 | 1994-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-05-28 | 1997-11-27 | 1998-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-05-28 | 2001-11-27 | 2002-05-29 | $7700.00 | Window Closed / Lapsed |