US4969816A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dental material carrier and applicator
Assignee: Centrix Aerospace LLC
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Filing: 1989-03-20
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Granted: 1990-11-13
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Expires: 2009-03-20
Abstract
Abstract This disclosure is directed to a dental material carrier and applicator in the form of a syringe capsule for containing a supply of dental material, e.g. a dental lining material for treating exposed dental pulp that has formed on the end thereof adjacent the discharging nozzle or orifice an applicator configuration for facilitating the positioning of the material as the dentist is applying the material contained within the capsule.
Inventors
- 👤 Melvin Drumm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:24
CPC Classifications
A; A61; A61C; A61C5/00; A61C5/60; A61C5/66
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
162 words
An integrally formed disposable plastic capsule for containing and applying a dental material to a treatment area comprising a body portion defining a reservoir for containing a predetermined amount of dental material, said body portion having a full open end, a lateral outwardly extending flange circumscribing said open end, a displaceable piston contained within said body portion for sealing said full open end, a discharge nozzle connected to the other end of said body portion, said discharge nozzle having a passageway extending therethrough and terminating in a discharge orifice, said discharge nozzle being disposed at an angle relative to the longitudinal axis of said body portion, and a protuberance integrally formed at the end of said discharge nozzle, said protuberance defining a small ball applicator formed about said discharge orifice whereby the dental material contained within the capsule can be readily dispensed by displacement of said piston permitting the dentist to work the material onto the injured part by said ball applicator.
Claim 2
Dependent Claim
162 words
An integrally formed disposable plastic capsule for containing and applying a dental material to a treatment area comprising a body portion defining a reservoir for containing a predetermined amount of dental material, said body portion having a full open end, a lateral outwardly extending flange circumscribing said open end, a displaceable piston contained within said body portion for sealing said full open end, a discharge nozzle connected to the other end of said body portion, said discharge nozzle having a passageway extending therethrough and terminating in a discharge orifice, said discharge nozzle being disposed at an angle relative to the longitudinal axis of said body portion, and a protuberance integrally formed at the end of said discharge nozzle, said protuberance defining a small ball applicator formed about said discharge orifice whereby the dental material contained within the capsule can be readily dispensed by displacement of said piston permitting the dentist to work the material onto the injured part by said ball applicator.
References Cited (Backward Citations)
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Cited
US1712139A
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US4391590A
Cited
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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) | 1993-11-12 | 1994-05-14 | 1994-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-11-12 | 1998-05-14 | 1998-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-11-12 | 2002-05-14 | 2002-11-13 | $7700.00 | Window Closed / Lapsed |