US4266935A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protective sleeve for the handle of a dental instrument
Assignee: Individual
•
Filing: 1979-12-26
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Granted: 1981-05-12
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Expires: 1999-12-26
Abstract
Abstract A sterilized protective sleeve for the handle of a dental instrument consists of an elastic tubular casing of synthetic resin and adapted to conform to the shank of the instrument. The casing defines a first opening to one end thereof for receiving the shank and enabling the casing to be pulled thereover and a second opening at an opposite end for permitting a tooth treating tool carried on the tip of the shank to project therethrough. A protective member of a shape-retaining resin is mounted on the opposite end and defines the second opening thereon.
Inventors
- 👤 Gert Hoppe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:31
CPC Classifications
A; A61; A61C; A61C1/00; A61C1/08; A61C1/16
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
148 words
A sterilized protective sleeve for the handle of a dental instrument comprising a shank having a tip for carrying a tooth treating tool which, in turn, has a tool shank comprising: a sleeve consisting of an elastic and pliable tubular casing of synthetic resin and adapted to conform to the shank of said instrument, said tubular casing defining a first opening at one end thereof for receiving said instrument shank and enabling the casing to be pulled thereover and a second opening at an opposite end; and an annular, disc-shaped protective member integrally attached to said opposite end of said sleeve so that it projects from said second opening, said member being made of a shape-retaining synthetic resin, and having an inner surface defining a through bore configured and dimensioned so as to define a radial clearance sufficient for said tool shank to pass freely and unhindered therethrough.
Claim 2
Dependent Claim
148 words
A sterilized protective sleeve for the handle of a dental instrument comprising a shank having a tip for carrying a tooth treating tool which, in turn, has a tool shank comprising: a sleeve consisting of an elastic and pliable tubular casing of synthetic resin and adapted to conform to the shank of said instrument, said tubular casing defining a first opening at one end thereof for receiving said instrument shank and enabling the casing to be pulled thereover and a second opening at an opposite end; and an annular, disc-shaped protective member integrally attached to said opposite end of said sleeve so that it projects from said second opening, said member being made of a shape-retaining synthetic resin, and having an inner surface defining a through bore configured and dimensioned so as to define a radial clearance sufficient for said tool shank to pass freely and unhindered therethrough.
Claim 3
Dependent Claim
35 words
The sterilized protective sleeve of claim 1, wherein the treating tool is a drill and the protective member is a plate having a central opening, the drill projecting freely through the opening in the plate.
Claim 4
Dependent Claim
26 words
The sterilized protective sleeve of claim 1, wherein the treating tool is a turbine and the protective member is a ring arranged to surround the turbine.
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) | 1984-05-11 | 1984-11-10 | 1985-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-05-11 | 1988-11-10 | 1989-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-05-11 | 1992-11-10 | 1993-05-12 | $7700.00 | Window Closed / Lapsed |