EP0070194A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Coupling assembly for a driven tool and a coupling for use therein
Assignee: Individual
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Filing: 1982-07-13
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Granted: —
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Expires: 2002-07-13
Abstract
Abstract A coupling assembly for a driven tool such as a dentist's drill comprises a coupling (16) for connecting the tool to conduits (26) for conveying driving and/or cooling agents to and from the tool which coupling is formed with ducts (10-13) for connection at one end thereof to the conduits and at the other end thereof to the tool and with a further duct (14) which accommodates a light source (21) comprising a lamp and a lamp base operable to transmit light to an optical conductor in the tool, characterised in that the further duct (14) is open to the exterior only at its ends and is formed so as to be capable of receiving the light source (21) through one of said ends, and co-operating with a corresponding formation on the light source (21) releasably to locate the lamp in the further duct (14).
Inventors
- 👤 Flemming Julin Hansen
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 23:40
CPC Classifications
A; A61; A61C; A61C1/00; A61C1/08; A61C1/18; A61C1/088
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
137 words
A coupling assembly for a driven tool comprising a coupling (16) for connecting the tool to conduits (26) conveying driving and/or cooling agents to and from the tool which coupling is formed with ducts (10-13) for connection at one end thereof to the conduits and at the other end thereof to the tool and with a further duct (14) which accomodates a light source (21) comprising a lamp and a lamp base to transmit light to an optical conductor in the tool, characterised in that the further duct (14) is open to the exterior only at its ends and is formed so as to be capable of receiving the light source (21) through one of said ends and co-operating with a corresponding formation of the light source (21) releasably to locate the lamp in the further duct.
Claim 2
Dependent Claim
137 words
A coupling assembly for a driven tool comprising a coupling (16) for connecting the tool to conduits (26) conveying driving and/or cooling agents to and from the tool which coupling is formed with ducts (10-13) for connection at one end thereof to the conduits and at the other end thereof to the tool and with a further duct (14) which accomodates a light source (21) comprising a lamp and a lamp base to transmit light to an optical conductor in the tool, characterised in that the further duct (14) is open to the exterior only at its ends and is formed so as to be capable of receiving the light source (21) through one of said ends and co-operating with a corresponding formation of the light source (21) releasably to locate the lamp in the further duct.
Claim 3
Dependent Claim
57 words
A coupling assembly as claimed in claim 1, characterised in that the light source (21) is located in the duct (14) by means of co-operation of a radial projection (21a) around the lamp base and an arrest at that end of the duct (14) that will be remote from the drill when the coupling is connected thereto.
Claim 4
Dependent Claim
46 words
A coupling assembly as claimed in claim 2, characterised in that it further comprises a sleeve (25) provided with an internal projection (24) such that, when the sleeve is in place over the coupling (16), the internal projection urges the radial projection (21a) against the arrest.
Claim 5
Dependent Claim
27 words
A coupling assembly as claimed in claim 3, characterised in that it further comprises means (23) for arresting the sleeve (25) with respect to the coupling (16).
Claim 6
Dependent Claim
43 words
A coupling assembly as claimed in any preceding claim, wherein the tool is gas-driven and/or gas-cooled, characterised in that the further duct (14) is, over at least part of its length, in open contact with the driving and/or cooling agent conveying ducts (12,13).
Claim 7
Dependent Claim
19 words
A coupling assembly as claimed in any preceding claim, charaterised in that the lamp and lamp base are integral.
Claim 8
Dependent Claim
107 words
A coupling for use in an assembly as claimed in claim 1, which coupling (16) is formed with ducts (10-13) for connection at one end thereof to the conduits (26) and at the other end thereof to the tool and with a further duct (14) for accommodating a light source comprising a lamp and a lamp base to transmit light to an optical conductor in the tool, characterised in that the further duct (14) is open to the exterior only at its ends and is formed so as to be capable of receiving the light source through one of said ends and releasably locating the lamp therein.
Claim 9
Dependent Claim
41 words
A coupling as claimed in claim 7, wherein the tool is gas-driven and/or gas-cooled, characterised in that the further duct (14) is, over at least part of its length, in open contact with the driving-agent and/or cooling agent conveying ducts (12,13).
Claim 10
Dependent Claim
25 words
A coupling as claimed in claim 8, characterised in that it further includes the base for the light source fixedly located in the duct (14).
References Cited (Backward Citations)
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