US3657818A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sterilizable handpiece of the slip-sleeve type
Assignee: Micro Mega SA
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Filing: 1969-07-28
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Granted: 1972-04-25
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Expires: 1989-07-28
Abstract
Abstract An electrically operated handpiece for use in surgical and dental work adapted to be assembled to a micromotor by a slipsleeve is described. The assembly is provided with a tubular body, fitting around the slip-sleeve. Fastening means are provided for releasably securing the handpiece to the micromotor. A resilient protective sleeve extends over the tubular body as well as at least part of the motor to prevent contact between the micromotor and the hands of an operator.
Inventors
- 👤 Marcel Garnier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:44
CPC Classifications
A; A61; A61C; A61C1/00; A61C1/08; A61C1/18
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
187 words
In a portable dental tool, a sterilizable handpiece comprising a hollow tubular body, a small electric motor for driving a dental tool during use, a slip sleeve on said motor insertable axially into said hollow tubular body for mounting the handpiece on the motor, a manually operable, depressable connector means on said slip sleeve for releasably securing the handpiece to said slip sleeve for slipping on and off the handpiece onto and off of said slip sleeve for connecting and disconnecting the handpiece to said slip sleeve, a flexible, protective sterilizable sleeve having a first portion circumferentially of said tubular body a frictionally axially held thereon and a second portion of greater inner diameter than said first portion extending axially over a part of said motor and circumferentially spaced therefrom to allow free flow of air around the motor, said sterilizable sleeve having said portions joined along an axial area of jointure, said depressable means including an actuator on said motor for selectively operating said connector, by flexing of said second portion of said sleeve inwardly to actuate said actuator for disconnecting the handpiece from the motor.
Claim 2
Dependent Claim
187 words
In a portable dental tool, a sterilizable handpiece comprising a hollow tubular body, a small electric motor for driving a dental tool during use, a slip sleeve on said motor insertable axially into said hollow tubular body for mounting the handpiece on the motor, a manually operable, depressable connector means on said slip sleeve for releasably securing the handpiece to said slip sleeve for slipping on and off the handpiece onto and off of said slip sleeve for connecting and disconnecting the handpiece to said slip sleeve, a flexible, protective sterilizable sleeve having a first portion circumferentially of said tubular body a frictionally axially held thereon and a second portion of greater inner diameter than said first portion extending axially over a part of said motor and circumferentially spaced therefrom to allow free flow of air around the motor, said sterilizable sleeve having said portions joined along an axial area of jointure, said depressable means including an actuator on said motor for selectively operating said connector, by flexing of said second portion of said sleeve inwardly to actuate said actuator for disconnecting the handpiece from the motor.
Claim 3
Dependent Claim
46 words
In a portable surgical tool according to claim 1, in which said connector comprises a leaf spring having a projection, said hollow slip sleeve having an opening for receiving said projection, and said actuator comprising a depressable pushbutton for selectively disengaging said projection from said opening.
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) | 1975-04-25 | 1975-10-25 | 1976-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-25 | 1979-10-25 | 1980-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-25 | 1983-10-25 | 1984-04-25 | $7700.00 | Window Closed / Lapsed |