US4968249A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dental spray handpiece
Assignee: Kaltenbach and Voigt GmbH
•
Filing: 1988-09-27
•
Granted: 1990-11-06
•
Expires: 2008-09-27
Abstract
Abstract A dental spray handpiece, consisting of a switchless sleeve having a media inlet connection at its rearward end and a media discharge outlet at its forward end. Within the sleeve there is arranged at least one media conduit leading from the media connection to the media discharge outlet and discharging therefrom at this location, with a remote-controlled flow of media.
Inventors
- 👤 Gerd Lohn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:36
CPC Classifications
A; A61; A61C; A61C17/00; A61C17/02; A61C17/0202; A61C1/00; A61C1/08; A61C1/088
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
192 words
Dental spray handpiece comprising a switchless sleeve having a media inlet connection at a rearward end and a media discharge outlet at a forward end; at least one media conduit in said sleeve extending from the media inlet connection to the media discharge outlet and discharging outwardly thereof with a remote-controlled flow of media; said sleeve being configured as a freely elongated crayon-like member, said media discharge outlet of the media conduit forming an outlet orifice directed radially towards the side of said sleeve and discharging outwardly from the wall structure of said sleeve, said media conduit comprising a plurality of conduits arranged in said sleeve, each said conduit having an outlet orifice forming a media discharge outlet radially directed towards the side of said sleeve, wherein said media conduits include a warm blow-air conduit, a water conduit, a light-conductor, and a spray air conduit, said outlet orifices being arranged axially-parallel, and an angle formed by a perpendicular plane relative to the longitudinal axis of said sleeve extending through the axes of said outlet orifices is greater than the angle formed by said outlet orifices and said longitudinal axis of the sleeve.
Claim 2
Dependent Claim
192 words
Dental spray handpiece comprising a switchless sleeve having a media inlet connection at a rearward end and a media discharge outlet at a forward end; at least one media conduit in said sleeve extending from the media inlet connection to the media discharge outlet and discharging outwardly thereof with a remote-controlled flow of media; said sleeve being configured as a freely elongated crayon-like member, said media discharge outlet of the media conduit forming an outlet orifice directed radially towards the side of said sleeve and discharging outwardly from the wall structure of said sleeve, said media conduit comprising a plurality of conduits arranged in said sleeve, each said conduit having an outlet orifice forming a media discharge outlet radially directed towards the side of said sleeve, wherein said media conduits include a warm blow-air conduit, a water conduit, a light-conductor, and a spray air conduit, said outlet orifices being arranged axially-parallel, and an angle formed by a perpendicular plane relative to the longitudinal axis of said sleeve extending through the axes of said outlet orifices is greater than the angle formed by said outlet orifices and said longitudinal axis of the sleeve.
Claim 3
Dependent Claim
25 words
Spray handpiece as claimed in claim 1, wherein the axis of said outlet orifice is slightly angled towards the adjacent forward end of said sleeve.
Claim 4
Dependent Claim
27 words
Spray handpiece as claimed in claim 1, wherein the discharges of said water conduit and of said spray air conduit are joined into a single outlet orifice.
Claim 5
Dependent Claim
22 words
Spray handpiece as claimed in claim 3, wherein said outlet orifices are arranged in sequence along a cylindrical line on said sleeve.
Claim 6
Dependent Claim
51 words
Spray handpiece as claimed in claim 4, wherein the outlet orifice of the warm blown-air conduit is located closest to the forward end of said sleeve, followed by the outlet orifice of the light-conductor, and thereafter followed by the joint outlet orifice for the water conduit and the spray air conduit.
Claim 7
Dependent Claim
35 words
Spray handpiece as claimed in claim 1, wherein said light-conductor comprises a light element terminating in a free end within said sleeve; and a light-producing element being associated with said free end of said conductor.
Claim 8
Dependent Claim
22 words
Spray handpiece as claimed in claim 6, wherein the light-producing element comprises an incandescent lamp, such as a lightbulb or halogen lamp.
Claim 9
Dependent Claim
25 words
Spray handpiece as claimed in claim 1, wherein said warm blown-air conduit has heating means associated therewith for heating the air conveyed to said conduit.
References Cited (Backward Citations)
GB228934A
Cited
US3137297A
Cited
CH375483A
Cited
DE1541226A1
Cited
DE2021540A1
Cited
DE2821710A1
Cited
DE2920009A1
Cited
US4341518A
Cited
DE3034930A1
Cited
DE3337166A1
Cited
US4770632A
Cited
US4759712A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-11-05 | 1994-05-07 | 1994-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-11-05 | 1998-05-07 | 1998-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-11-05 | 2002-05-07 | 2002-11-06 | $7700.00 | Window Closed / Lapsed |