Patent US5733126A successfully refreshed from Google Patents.
US5733126A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and device for production of three-dimensional bodies
Assignee: Nobel Biocare Services AG
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Filing: 1996-11-19
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Granted: 1998-03-31
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Expires: 2016-11-19
Abstract
Abstract A method and device for scanning, in connection with the production of a three-dimensional body, an outer contour of a rotating model with a scanning device operating at a scanning angle relative to the rotational axis of the model includes rotatably supporting the model such that the contour to be scanned on the model has a preparation line exposed to the angled scanning device; applying the scanning device towards a surface situated on the model below the preparation line; scanning the contour with the scanning device while simultaneously rotating the model and vertically moving at least one of the scanning device and the model with respect to each other during the contour scanning.
Inventors
- 👤 Matts Andersson
- 👤 Anders Tornquist
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:40
CPC Classifications
A; A61; A61C; A61C9/00; A61C9/002; A61C9/004; A61C9/0046; A61C9/0053; G; G05; G05B; G05B19/00; G05B19/02; G05B19/42; G05B19/4202; G05B19/4207; A61C9/0093
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
116 words
A method for scanning, in connection with the production of a three-dimensional body, an outer contour of a rotating model with a scanning device operating at a scanning angle relative to the rotational axis of the model, said method comprising the steps of: rotatably supporting the model such that the contour to be scanned on the model has a preparation line exposed to the angled scanning device; applying the scanning device towards a surface situated on the model below the preparation line; scanning said contour with the scanning device while simultaneously rotating said model and vertically moving at least one of the scanning device and the model with respect to each other during said contour scanning.
Claim 2
Independent Claim
116 words
A method for scanning, in connection with the production of a three-dimensional body, an outer contour of a rotating model with a scanning device operating at a scanning angle relative to the rotational axis of the model, said method comprising the steps of: rotatably supporting the model such that the contour to be scanned on the model has a preparation line exposed to the angled scanning device; applying the scanning device towards a surface situated on the model below the preparation line; scanning said contour with the scanning device while simultaneously rotating said model and vertically moving at least one of the scanning device and the model with respect to each other during said contour scanning.
Claim 3
Dependent Claim
38 words
A method according to claim 1, further including fitting the model in a fixture for adjusting the model in two mutually perpendicular directions located in the same plane, whereby centering the model relative to the rotational axis thereof.
Claim 4
Dependent Claim
60 words
A method according to claim 2, further including disposing a longitudinal member in parallel with the rotational axis of the model and so as to bear against the model surface at the preparation line, after the model has assumed its position in said fixture, whereby the scanned contour is placed between the member and the rotational axis of the model.
Claim 5
Dependent Claim
50 words
A method according to claim 1, further including providing a scanning device with a scanning member having a spherical front surface probe, which bears against a surface on the model material located below said preparation line around the entire outer surface of the model at the commencement of said scanning.
Claim 6
Dependent Claim
57 words
A method according to claim 1, further including actuating the scanning member of the scanning device towards said surface on said model material below the preparation line upon the commencement of the scanning operation and operating said scanning member for scanning the contour of the model until the scanning member reaches the upper part of the model.
Claim 7
Dependent Claim
61 words
A method according to claim 1, further including positioning said model in a rotatable holder, activating and effecting rotational and vertical movement of the rotatable holder during the scanning by the scanning member and further effecting, once the scanning member has completed its scanning of the contour of the model, a return vertical movement of the holder to a starting position.
Claim 8
Dependent Claim
66 words
A method according to claim 1, further including scanning the outer contour of the model for establishing the inner surface of a sleeve, the inner surface corresponding to the outer contour of the model, then applying the sleeve onto the model with great accuracy and scanning the outer contour of the sleeve in a manner equivalent to that of scanning the outer contour of the model.
Claim 9
Dependent Claim
51 words
A method according to claim 7, further including bringing the front part of a scanning member of the scanning device into contact with the surface of the model situated below the preparation line at essentially the same point in the readings of the outer contours of the model and the sleeve.
Claim 10
Dependent Claim
91 words
A scanning device used in the production of a three dimensional body for scanning an outer contour of a rotating model comprising a scanning member operating at a scanning angle relative to the rotation axis of the model, means for adjusting the scanning member with respect to a surface of the model situated below the preparation line, means for activating rotation of the model, means for activating the scanning member for contour scanning, and means for effecting simultaneous vertical displacement movement between the scanning member and the model during the scanning.
Claim 11
Dependent Claim
91 words
A scanning device used in the production of a three dimensional body for scanning an outer contour of a rotating model comprising a scanning member operating at a scanning angle relative to the rotation axis of the model, means for adjusting the scanning member with respect to a surface of the model situated below the preparation line, means for activating rotation of the model, means for activating the scanning member for contour scanning, and means for effecting simultaneous vertical displacement movement between the scanning member and the model during the scanning.
Claim 12
Dependent Claim
54 words
A device according to claim 9, further including means for activating the scanning device into contact with the contour of the model upon the commencement of the scanning and for performing a return movement of at least one of the scanning device and the model when the scanning device has completed the contour reading.
Claim 13
Dependent Claim
41 words
A device according to claim 9, wherein the model is provided with a clearly marked preparation line, below which there is configured an indentation having a height of no less than about one millimeter in the vertical direction of the model.
Claim 14
Dependent Claim
26 words
A device according to claim 11, further including a fixture arranged to support the model and including adjusting members for the alignment of the model thereon.
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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) | 2001-03-30 | 2001-09-29 | 2002-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-03-30 | 2005-09-29 | 2006-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-03-30 | 2009-09-29 | 2010-03-31 | $7700.00 | Window Closed / Lapsed |