Patent US5055043A successfully refreshed from Google Patents.
US5055043A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dental fluid control apparatus
Assignee: Individual
•
Filing: 1990-07-19
•
Granted: 1991-10-08
•
Expires: 2010-07-19
Abstract
Abstract Dental apparatus includes a tank of compressed sterile oxygen, or another compressed gas such as nitrogen, a source of a pressurized treatment liquid, and valves for coupling the oxygen tank or treatment liquid to the water inlet of the dental unit enabling the dental unit to be used for a wide variety of dental treatments, particularly when using a triple syringe for rinsing the canals in root canal treatment, or when using an ultrasonic scaler for dislodging hard deposits and stain.
Inventors
- 👤 Ervin Weiss
- 👤 Zeev Ram
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:27
CPC Classifications
A; A61; A61C; A61C1/00; A61C1/0007
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
157 words
Dental apparatus for use with a dental unit having a water inlet to be coupled to a source of pressurized water for driving and/or cooling dental appliances to be coupled to the dental unit, or for flushing the treatment site, and a air inlet connectible to a source of compressed air; said dental apparatus comprising; a tank of compressed oxygen; a source of pressurized liquid; and valve means for coupling said tank of compressed oxygen and said source of pressurized liquid to the water inlet of the dental unit, said valve means including: means for selectively coupling said air inlet of the dental unit to said source of compressed air or to said tank of compressed oxygen; and means for selectively coupling said water inlet of the dental unit to said source of pressurized water, to said container for a treatment solution, or to both said container for a treatment solution and said tank of compressed oxygen.
Claim 2
Dependent Claim
157 words
Dental apparatus for use with a dental unit having a water inlet to be coupled to a source of pressurized water for driving and/or cooling dental appliances to be coupled to the dental unit, or for flushing the treatment site, and a air inlet connectible to a source of compressed air; said dental apparatus comprising; a tank of compressed oxygen; a source of pressurized liquid; and valve means for coupling said tank of compressed oxygen and said source of pressurized liquid to the water inlet of the dental unit, said valve means including: means for selectively coupling said air inlet of the dental unit to said source of compressed air or to said tank of compressed oxygen; and means for selectively coupling said water inlet of the dental unit to said source of pressurized water, to said container for a treatment solution, or to both said container for a treatment solution and said tank of compressed oxygen.
Claim 3
Dependent Claim
33 words
The apparatus according to claim 1, wherein said source of pressurized liquid includes a container for a treatment solution, and a pump for pressurizing the treatment solution when applied to said valve means.
Claim 4
Dependent Claim
120 words
Dental apparatus for use with a dental unit having an air inlet to be coupled to a source of compressed air and a water inlet to be coupled to a source of pressurized water for driving and/or cooling dental appliances to be coupled to the dental unit; said dental apparatus comprising: a tank of compressed oxygen; a first selector valve for selectively coupling said air inlet of the dental unit either to said source of compressed air or to said tank of compressed gas; a container for treatment solution; and a second selector valve for selectively coupling said water inlet of the dental unit either to said source of pressurized water or to said container for a pressurized treatment solution.
Claim 5
Dependent Claim
120 words
Dental apparatus for use with a dental unit having an air inlet to be coupled to a source of compressed air and a water inlet to be coupled to a source of pressurized water for driving and/or cooling dental appliances to be coupled to the dental unit; said dental apparatus comprising: a tank of compressed oxygen; a first selector valve for selectively coupling said air inlet of the dental unit either to said source of compressed air or to said tank of compressed gas; a container for treatment solution; and a second selector valve for selectively coupling said water inlet of the dental unit either to said source of pressurized water or to said container for a pressurized treatment solution.
Claim 6
Dependent Claim
32 words
The dental apparatus according to claim 3, further including a pump for pumping the treatment solution to the water inlet of the dental unit when coupled thereto by said second selector valve.
Claim 7
Dependent Claim
34 words
The dental apparatus according to claim 4, including means for automatically energizing said pump when said second selector valve couples the container for the treatment solution to the water inlet of the dental unit.
Claim 8
Dependent Claim
86 words
The dental apparatus according to claim 3, wherein said first selector valve includes an inlet pipe connected to said source of compressed air, an inlet pipe connected to said tank of compressed gas, and an outlet pipe connected to said air inlet of the dental unit; and wherein said second selector valve includes an inlet pipe connected to said source of pressurized water, an inlet pipe connected to said container of treatment solution, and an outlet pipe connected to the water inlet of the dental unit.
Claim 9
Dependent Claim
25 words
The dental apparatus according to claim 6, wherein each of said inlet pipes includes a one-way valve permitting flow only into the respective selector valve.
Claim 10
Dependent Claim
28 words
The dental apparatus according to claim 3, wherein each of said inlet pipes includes a pressure gauge for indicating the pressure of the fluid flowing through the pipe.
Claim 11
Dependent Claim
62 words
The dental apparatus according to claim 3, further including a third selector valve permitting said water inlet of the dental unit also to be connected to both said tank of compressed gas and container for a pressurized treatment solution so as to apply a mixture of said treatment solution and pressurized gas via the water inlet to the dental appliance coupled thereto.
Claim 12
Dependent Claim
21 words
The dental apparatus according to claim 3, wherein said dental unit includes an outlet coupling for coupling an ultrasonic scaler thereto.
Claim 13
Dependent Claim
21 words
The dental apparatus according to claim 3, wherein said dental unit includes an outlet coupling for coupling a turbine-driven drill thereto.
Claim 14
Dependent Claim
21 words
The dental apparatus according to claim 3, wherein said dental unit includes an outlet coupling for coupling a triple syringe thereto.
References Cited (Backward Citations)
US4021921A
Cited
DE2829271A1
Cited
US4302185A
Cited
US4315742A
Cited
US4331422A
Cited
DE3523026A1
Cited
US4820152A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-10-07 | 1995-04-08 | 1995-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-10-07 | 1999-04-08 | 1999-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-10-07 | 2003-04-08 | 2003-10-08 | $7700.00 | Window Closed / Lapsed |