US3604735A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coupling for dental instruments
Assignee: Kaltenbach and Voigt GmbH
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Filing: 1969-08-25
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Granted: 1971-09-14
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Expires: 1989-08-25
Abstract
Abstract The invention relates to a coupling for the connection of a dental straight or angle handpiece to an electrical driving motor constructed as a miniature motor, the coupling being arranged substantially within a disc which is connected to the drive-side end of the miniature motor. The coupling is constituted by operating element movably mounted in the disc and which is urged into locking position by a spring.
Inventors
- 👤 Erich Hoffmeister
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:48
CPC Classifications
A; A61; A61C; A61C1/00; A61C1/08; A61C1/18; F; F16; F16B; F16B2200/00; F16B2200/69; Y; Y10; Y10T; Y10T279/00; Y10T279/17; Y10T279/17761; Y10T403/00; Y10T403/59; Y10T403/591; Y10T403/595; Y10T403/70; Y10T403/7075; Y10T403/7077
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
165 words
A coupling for connecting a dental handpiece to a miniature motor which comprises a sleeve having a motor shaft-receiving bore and a radially projecting flange at one end thereof, said flange having a flat end surface and an annular surface underlying said end surface, a unitary coupling member seated on said end surface for movement in a plane normal to the axis of said bore, said coupling member having first and second end portions each lying radially outwardly of the periphery of said flange, a radially inwardly extending hook carried by said first end portion for positioning in underlying relation to said annular surface of said flange, said second end portion having an end surface operatively engageable to impart movement to said coupling member, and an intermediate portion offset from said bore and connecting said end portions, and a spring connecting said coupling member and said flange and urging said coupling member in a direction to place said hook in position underlying said annular shoulder.
Claim 2
Dependent Claim
165 words
A coupling for connecting a dental handpiece to a miniature motor which comprises a sleeve having a motor shaft-receiving bore and a radially projecting flange at one end thereof, said flange having a flat end surface and an annular surface underlying said end surface, a unitary coupling member seated on said end surface for movement in a plane normal to the axis of said bore, said coupling member having first and second end portions each lying radially outwardly of the periphery of said flange, a radially inwardly extending hook carried by said first end portion for positioning in underlying relation to said annular surface of said flange, said second end portion having an end surface operatively engageable to impart movement to said coupling member, and an intermediate portion offset from said bore and connecting said end portions, and a spring connecting said coupling member and said flange and urging said coupling member in a direction to place said hook in position underlying said annular shoulder.
Claim 3
Dependent Claim
34 words
A coupling for connecting a dental handpiece to a miniature motor as defined in claim 1, said coupling member comprising a slide, said end portions thereof being in diametrically opposite relation to each other.
Claim 4
Dependent Claim
32 words
A coupling for connecting a dental handpiece to a miniature motor as defined in claim 1, said coupling member comprising a lever pivotally mounted on said flange intermediate said end portions thereof.
References Cited (Backward Citations)
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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) | 1974-09-13 | 1975-03-15 | 1975-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-13 | 1979-03-15 | 1979-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-13 | 1983-03-15 | 1983-09-14 | $7700.00 | Window Closed / Lapsed |