US5474450A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dental instrument
Assignee: Individual
•
Filing: 1994-02-08
•
Granted: 1995-12-12
•
Expires: 2014-02-08
Abstract
Abstract A dental instrument including separable spray and suction mechanisms. The spray mechanism is preferably an air and water syringe of the type conventionally found in a dentist office. The spray mechanism has an elongate nozzle. The suction mechanism includes a tubular structure joined to a valve which is in turn joined to a suction or vacuum source. The tube includes an interior passageway and a forward suction opening into the passageway. The tube also includes a bend and has an aperture at the bend for removeably receiving the spray nozzle. In this manner the spray nozzle can be selectively inserted within the passageway of the suction mechanism. A user is then able to actuate either the spray mechanism and/or the suction mechanism utilizing a single hand that is holding the instrument 1. Alternatively, the mechanism may be removed from the suction mechanism and be utilized as an independent tool.
Inventors
- 👤 Stephen H. Chronister
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:30
CPC Classifications
A; A61; A61C; A61C17/00; A61C17/02; A61C17/0208; A61C17/06; A61C17/08
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
209 words
A dental instrument comprising: a) a water spray mechanism flow connectable to a water supply and having a user operable water valve for controlling flow of water therethrough; b) a water distribution nozzle on said spray mechanism having an internal fluid passageway flow connected to said water valve; c) a suction mechanism; said suction mechanism including a suction passageway flow connected to a suction control valve that in turn is flow connectable to a suction generating source; said suction mechanism including a mounting aperture to allow said water distribution nozzle to be selectively and removeably inserted through said aperture, said water spray mechanism having a mounted position, such that when in the mounted position, said water nozzle is at least partially located within said vacuum passageway; said water spray mechanism having a non-mounted position wherein said water spray mechanism and said suction mechanism are unjoined and separably usable; d) said water spray mechanism includes a handle and said water distribution nozzle is flow connected to an air source; e) said spray mechanism further includes a valve for the control of air into said water distribution nozzle fluid passageway; and including f) water source means connected to said water valve and suction generating means connected to said suction control valve.
Claim 2
Dependent Claim
209 words
A dental instrument comprising: a) a water spray mechanism flow connectable to a water supply and having a user operable water valve for controlling flow of water therethrough; b) a water distribution nozzle on said spray mechanism having an internal fluid passageway flow connected to said water valve; c) a suction mechanism; said suction mechanism including a suction passageway flow connected to a suction control valve that in turn is flow connectable to a suction generating source; said suction mechanism including a mounting aperture to allow said water distribution nozzle to be selectively and removeably inserted through said aperture, said water spray mechanism having a mounted position, such that when in the mounted position, said water nozzle is at least partially located within said vacuum passageway; said water spray mechanism having a non-mounted position wherein said water spray mechanism and said suction mechanism are unjoined and separably usable; d) said water spray mechanism includes a handle and said water distribution nozzle is flow connected to an air source; e) said spray mechanism further includes a valve for the control of air into said water distribution nozzle fluid passageway; and including f) water source means connected to said water valve and suction generating means connected to said suction control valve.
Claim 3
Dependent Claim
218 words
A dental instrument comprising: a) an air and water spray syringe having a handle, an elongate spray nozzle with a distal spray opening, a handle for holding, an air valve and a water valve flow connected to said spray opening and piping means operably connecting said air and water valve to sources of air and water respectively; b) a suction apparatus having a valve flow connectable to a suction generator and a suction tube joined to the suction valve; said suction tube having a distal end with a suction opening therein flow connected to a suction passageway that is in turn flow connected to said suction valve; said tube having a bend therein; said tube having an aperture at said bend that opens into said passageway and is sized to receive said spray nozzle; said aperture including sealing means for pliably sealing about said spray nozzle; said tube being disposable and including connecting means for removeably connecting said tube to said suction valve; and c) said syringe having a mounted position wherein said syringe is removeably mounted with said spray nozzle positioned in said passageway with said passageway having a larger interior diameter than said nozzle to allow flow thereby and a non-mounted configuration wherein said syringe is separated from and independently usable relative to said suction apparatus.
Claim 4
Dependent Claim
218 words
A dental instrument comprising: a) an air and water spray syringe having a handle, an elongate spray nozzle with a distal spray opening, a handle for holding, an air valve and a water valve flow connected to said spray opening and piping means operably connecting said air and water valve to sources of air and water respectively; b) a suction apparatus having a valve flow connectable to a suction generator and a suction tube joined to the suction valve; said suction tube having a distal end with a suction opening therein flow connected to a suction passageway that is in turn flow connected to said suction valve; said tube having a bend therein; said tube having an aperture at said bend that opens into said passageway and is sized to receive said spray nozzle; said aperture including sealing means for pliably sealing about said spray nozzle; said tube being disposable and including connecting means for removeably connecting said tube to said suction valve; and c) said syringe having a mounted position wherein said syringe is removeably mounted with said spray nozzle positioned in said passageway with said passageway having a larger interior diameter than said nozzle to allow flow thereby and a non-mounted configuration wherein said syringe is separated from and independently usable relative to said suction apparatus.
Claim 5
Dependent Claim
34 words
The instrument according to claim 2 wherein: a) said tube includes a pliable suction tip; and b) said spray opening and said suction opening are located in close proximity when in the mounted configuration.
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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) | 1998-12-11 | 1999-06-12 | 1999-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-12-11 | 2003-06-12 | 2003-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-12-11 | 2007-06-12 | 2007-12-12 | $7700.00 | Window Closed / Lapsed |