US3894338A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Connector for connecting a dental instrument to a flexible supply tube
Assignee: Kaltenbach and Voigt GmbH
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Filing: 1973-02-14
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Granted: 1975-07-15
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Expires: 1993-02-14
Abstract
Abstract The invention relates to a connector for the axially rotatable connection of a dental instrument provided with a compressed-air motor or a turbine to a flexible supply tube, the instrument being connected releasably to the connector, which connects the pressure medium inlet and, where appropriate, the coolant inlet of the instrument constantly to the source of coolant or pressure medium.
Inventors
- 👤 Hans Loge
- 👤 Erich Bareth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:17
CPC Classifications
A; A61; A61C; A61C1/00; A61C1/08; A61C1/18; A61C1/02; A61C1/05; A61C1/052
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
126 words
Connector for the axially rotatable connection of a dental instrument including a compressed-air motor or a turbine to a flexible supply tube, said connector including a rapid-action coupling for detachably connecting the instrument to the connector, which continually connects a pressure medium inlet and a coolant inlet of the instrument to a pressure medium or, respectively, coolant source, said connector including a rapidaction coupling for detachably connecting said flexible supply tube to the connector, each said rapid-action coupling being a snap-action coupling, each said snap-action coupling comprising a coupling hook mounted in the connector, and spring means biasing the hook of one coupling into engagement with annular collar on said instrument and the other hook into engagement with a connection fitting of the flexible supply tube.
Claim 2
Dependent Claim
126 words
Connector for the axially rotatable connection of a dental instrument including a compressed-air motor or a turbine to a flexible supply tube, said connector including a rapid-action coupling for detachably connecting the instrument to the connector, which continually connects a pressure medium inlet and a coolant inlet of the instrument to a pressure medium or, respectively, coolant source, said connector including a rapidaction coupling for detachably connecting said flexible supply tube to the connector, each said rapid-action coupling being a snap-action coupling, each said snap-action coupling comprising a coupling hook mounted in the connector, and spring means biasing the hook of one coupling into engagement with annular collar on said instrument and the other hook into engagement with a connection fitting of the flexible supply tube.
Claim 3
Dependent Claim
39 words
Connector according to claim 1, comprising bearing means for pivotably supporting the coupling hooks, and sleeve means being rotatably supported on the connector and restrained from axial motion relative thereto, said bearing means being located on said sleeve means.
Claim 4
Dependent Claim
16 words
Connector according to claim 2, comprising rolling contact bearings between said sleeve means and said connector.
Claim 5
Dependent Claim
85 words
Connector according to claim 3, said instrument and said flexible supply tube being connected to the connector so as to be axially rotatable relative thereto, said compressed-air motor or turbine being driven by pressurized air, said connector including a driving air duct, a return air duct, a spray air duct, and a spray water duct for forming the coolant in the instrument, said ducts each including transition chambers at transition zones between components of the connector adapted to be axially rotated relatively to each other.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-07-14 | 1979-01-13 | 1979-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-14 | 1983-01-13 | 1983-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-14 | 1987-01-13 | 1987-07-15 | $7700.00 | Window Closed / Lapsed |