US4145061A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clamping device for a dental tool
Assignee: Individual
•
Filing: 1977-10-11
•
Granted: 1979-03-20
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Expires: 1997-10-11
Abstract
Abstract A clamping device for a dental tool consists of a tubular body whose bore has two coaxially cylindrical, terminal portions and a reduced, slightly eccentric, cylindrical, central portion. A clamping sleeve is conformingly rotatable in one of the terminal portions. Its slightly eccentric bore is of uniform cross section equal to that of the central portion of the body. The sleeve can be turned in the body between a position in which the bore of the sleeve and the central bore portion of the body member are aligned for insertion of a dental tool, and another position in which they clamp the tool.
Inventors
- 👤 Hans K. Schneider
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:00
CPC Classifications
A; A61; A61C; A61C5/00; A61C5/40; A61C5/44; Y; Y10; Y10T; Y10T279/00; Y10T279/14; Y10T279/17; Y10T279/17905; Y10T279/17914; Y10T279/17957
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
118 words
A clamping device comprising (a) an elongated body member formed with a first, longitudinal bore; and (b) an elongated tubular sleeve member formed with a second bore therethrough, (1) said sleeve member being secured in said first bore for angular movement about an axis between two relative positions, (2) respective portions of said bores constituting axially consecutive parts of a continuous receptacle in each of said positions, (3) said portions of said bores being substantially aligned in one of said positions and offset transversely of said axis in the other position, (4) said sleeve member projecting axially from said first bore, the projecting part of said sleeve member being of non-circular cross-section at right angles to said axis.
Claim 2
Dependent Claim
118 words
A clamping device comprising (a) an elongated body member formed with a first, longitudinal bore; and (b) an elongated tubular sleeve member formed with a second bore therethrough, (1) said sleeve member being secured in said first bore for angular movement about an axis between two relative positions, (2) respective portions of said bores constituting axially consecutive parts of a continuous receptacle in each of said positions, (3) said portions of said bores being substantially aligned in one of said positions and offset transversely of said axis in the other position, (4) said sleeve member projecting axially from said first bore, the projecting part of said sleeve member being of non-circular cross-section at right angles to said axis.
Claim 3
Dependent Claim
30 words
A device as set forth in claim 1, wherein said portions of said bores are of circular cross section about respective axes parallel to the axis of said angular movement.
Claim 4
Dependent Claim
25 words
A device as set forth in claim 1, wherein said projecting part has two opposite planar faces parallel to each other and to said axis.
Claim 5
Dependent Claim
21 words
A device as set forth in claim 1, further comprising securing means axially securing said sleeve member in said first bore.
Claim 6
Dependent Claim
38 words
A device as set forth in claim 4, wherein said securing means including an annular radial flange on said body member in said first bore, said sleeve member being formed with an annular, circumferential groove receiving said flange.
Claim 7
Dependent Claim
28 words
A device as set forth in claim 1, wherein said body member has an outer cylindrical face parallel to said axis, said outer face being formed with knurls.
Claim 8
Dependent Claim
52 words
A device as set forth in claim 1, wherein said first bore has two longitudinally terminal portions connected by an intermediate portion of reduced cross section, one of said terminal portions conformingly receiving said sleeve member for rotation about said axis, said intermediate portion constituting one of said parts of said receptacle.
Claim 9
Dependent Claim
114 words
A clamping device comprising: (a) an elongated body member formed with a first longitudinal bore and including an annular flange transversely projecting into said bore; (b) a tubular sleeve member formed with a second bore therethrough, (1) said sleeve member being formed with an annular, cumferential groove receiving said flange, and being longitudinally secured in said first bore by said flange for angular movement about an axis between two relative positions, (2) respective portions of said bores constituting axially consecutive parts of a continuous receptacle in each of said positions, (3) said portions of said bores being substantially aligned in one of said positions and offset transversely of said axis in the other position.
Claim 10
Dependent Claim
114 words
A clamping device comprising: (a) an elongated body member formed with a first longitudinal bore and including an annular flange transversely projecting into said bore; (b) a tubular sleeve member formed with a second bore therethrough, (1) said sleeve member being formed with an annular, cumferential groove receiving said flange, and being longitudinally secured in said first bore by said flange for angular movement about an axis between two relative positions, (2) respective portions of said bores constituting axially consecutive parts of a continuous receptacle in each of said positions, (3) said portions of said bores being substantially aligned in one of said positions and offset transversely of said axis in the other position.
Claim 11
Dependent Claim
35 words
A device as set forth in claim 8, wherein said sleeve member axially projects from said first bore, the projecting part of said sleeve member being of non-circular cross-section at right angles to said axis.
Claim 12
Dependent Claim
113 words
A clamping device comprising: (a) an elongated body member formed with a first longitudinal bore, (1) said bore having two longitudinally open terminal portions connected by an intermediate portion of reduced cross section; and (b) a sleeve member formed with a second bore therethrough, (1) said sleeve member being received conformingly in one of said terminal portions for angular movement about a longitudinal axis between two positions, (2) said second bore and said intermediate portion constituting consecutive parts of a continuous elongated passage in each of said positions, (3) said portions of said bore being substantially aligned in one of said positions and offset transversely of said passage in each of said positions.
Claim 13
Dependent Claim
113 words
A clamping device comprising: (a) an elongated body member formed with a first longitudinal bore, (1) said bore having two longitudinally open terminal portions connected by an intermediate portion of reduced cross section; and (b) a sleeve member formed with a second bore therethrough, (1) said sleeve member being received conformingly in one of said terminal portions for angular movement about a longitudinal axis between two positions, (2) said second bore and said intermediate portion constituting consecutive parts of a continuous elongated passage in each of said positions, (3) said portions of said bore being substantially aligned in one of said positions and offset transversely of said passage in each of said positions.
Claim 14
Dependent Claim
33 words
A device as set forth in claim 10, wherein the effective cross section of said passage is reduced by angular movement of said sleeve member from said one position to said second position.
Claim 15
Dependent Claim
37 words
A device as set forth in claim 10, wherein said terminal portions are cylindrical about said axis, said intermediate portion being cylindrical about another axis parallel to and transversely offset from the axis of said terminal portions.
References Cited (Backward Citations)
US2920894A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-03-19 | 1982-09-18 | 1983-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-03-19 | 1986-09-18 | 1987-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-03-19 | 1990-09-18 | 1991-03-20 | $7700.00 | Window Closed / Lapsed |