Patent US5593304A successfully refreshed from Google Patents.
US5593304A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dental apparatus including multiple-use electrically-oscillated handpiece
Assignee: Individual
•
Filing: 1995-06-16
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Granted: 1997-01-14
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Expires: 2015-06-16
Abstract
Abstract Dental apparatus includes a handpiece graspable at one end by a user, and a head at the opposite end of the handpiece including a single nozzle, or a pair of nozzles, connectible to a source of a liquid, a gas, and/or powder. An electrical oscillating drive within the handpiece oscillates the head; and a manual fluid selector device manually selects the liquid, gas, and/or powder for conduction to the single nozzle or to the pair of nozzles.
Inventors
- 👤 Zeev Ram
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:47
CPC Classifications
A; A61; A61C; A61C17/00; A61C17/16; A61C17/22; A61C17/32; A61C17/34; A61C17/36; A61C17/02; A61C17/0217; A61C3/00; A61C3/02; A61C3/025
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
124 words
Dental apparatus, comprising: a handpiece graspable at one end by a user; a head at the opposite end of the handpiece including nozzle means for discharging a fluid; a first conduit connectible at one end to a source of a flowable material, and connected at its opposite end to said nozzle means in the handpiece; a second conduit connectible at one end to a source of a gas, and connected at its opposite end to said nozzle means in the handpiece; an electrical oscillating drive within said handpiece for oscillating said head; and a manual fluid selector device for manually selecting either said flowable material, said gas, or both, for conduction via their respective conduits to and through said nozzle means in the handpiece.
Claim 2
Dependent Claim
124 words
Dental apparatus, comprising: a handpiece graspable at one end by a user; a head at the opposite end of the handpiece including nozzle means for discharging a fluid; a first conduit connectible at one end to a source of a flowable material, and connected at its opposite end to said nozzle means in the handpiece; a second conduit connectible at one end to a source of a gas, and connected at its opposite end to said nozzle means in the handpiece; an electrical oscillating drive within said handpiece for oscillating said head; and a manual fluid selector device for manually selecting either said flowable material, said gas, or both, for conduction via their respective conduits to and through said nozzle means in the handpiece.
Claim 3
Dependent Claim
40 words
The apparatus according to claim 1, wherein said nozzle means comprises a nozzle in said handpiece through which the fluid is discharged as a jet of liquid, gas, or a mixture of both, as selected by said manual fluid selector.
Claim 4
Dependent Claim
21 words
The apparatus according to claim 2, wherein said first and second conduits are connected together at a juncture within said handpiece.
Claim 5
Dependent Claim
40 words
The apparatus according to claim 1, wherein said nozzle means comprises two separate nozzles, one for discharging a liquid jet along a predetermined path, and the other for discharging a gas jet to intersect said path of the liquid jet.
Claim 6
Dependent Claim
30 words
The apparatus according to claim 1, wherein said handpiece includes said manual fluid selector device and also a manual frequency selector for selecting the frequency of said electrical oscillating drive.
Claim 7
Dependent Claim
25 words
The apparatus according to claim 1, wherein said head includes a quickly-attachable coupling for quickly attaching and detaching the head with respect to the handpiece.
Claim 8
Dependent Claim
20 words
The apparatus according to claim 1, wherein said head also includes bristles of a toothbrush in addition to said nozzle.
Claim 9
Dependent Claim
22 words
The apparatus according to claim 1, wherein said head also includes a holder for a wooden toothpick in addition to said nozzle.
Claim 10
Dependent Claim
50 words
The apparatus according to claim 1, wherein said apparatus includes a supply of a flowable material connected to said first conduit, and a valve controlled by said manual fluid selector device for controlling the flow of said flowable material via said first conduit to said nozzle means in the handpiece.
Claim 11
Dependent Claim
16 words
The apparatus according to claim 9, wherein said supply of flowable material is a liquid source.
Claim 12
Dependent Claim
14 words
The apparatus according to claim 10, wherein said liquid source is a water tap.
Claim 13
Dependent Claim
20 words
The apparatus according to claim 10, wherein said liquid source is a container containing a supply of a treatment solution.
Claim 14
Dependent Claim
30 words
The apparatus according to claim 10, wherein said liquid source is a pipe selectively connectible to a water tap or to a container containing a supply of a treatment solution.
Claim 15
Dependent Claim
50 words
The apparatus according to claim 1, wherein the apparatus further includes a supply of a gas connected to said second conduit in the handpiece, and a valve controlled by said manual fluid selector device in the handpiece for controlling the flow of gas to said second conduit in the handpiece.
Claim 16
Dependent Claim
44 words
The apparatus according to claim 14, further including a container containing a supply of a flowable powder and a valve controlled by said manual fluid selector device for controlling the flow of said powder with said gas to said second conduit in the handpiece.
Claim 17
Dependent Claim
17 words
The apparatus according to claim 14, wherein said supply of gas is a source of pressurized oxygen.
Claim 18
Dependent Claim
18 words
The apparatus according to claim 14, wherein said supply of a gas is a source of pressurized air.
Claim 19
Dependent Claim
40 words
The apparatus according to claim 1, wherein said apparatus further includes a saliva ejector receivable in the user's mouth, a vacuum pump for drawing saliva from the user's mouth via the saliva ejector, and a drain for draining the saliva.
Claim 20
Dependent Claim
19 words
The apparatus according to claim 18, wherein said vacuum pump is a venturi pump connected to a water tap.
Claim 21
Dependent Claim
20 words
The apparatus according to claim 18, wherein said vacuum pump is an eletrically-driven pump connected to an electrical power supply.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-01-14 | 2000-07-15 | 2001-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-01-14 | 2004-07-15 | 2005-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-01-14 | 2008-07-15 | 2009-01-14 | $7700.00 | Window Closed / Lapsed |