Patent US6331189B1 successfully refreshed from Google Patents.
US3877705A
Expired / Lapsed
US
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Diamond scanning element
Assignee: Deutsche Thomson OHG
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Filing: 1972-11-14
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Granted: 1975-04-15
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Expires: 1992-11-14
Abstract
Abstract In a signal scanner for the scanning of signals stored on an information carrier which is moving with a velocity relative to the signal scanner, an element including a diamond adapted at least for guiding the signal scanner by following a groove, which diamond has at least one part of its bounding surfaces selected from the natural crystal surfaces of diamond, on which part the crystallographic orientation of the diamond is recognizable.
Inventors
- 👤 Gunter Joschko
- 👤 Karl-Ekkehard Schriefl
- 👤 Hans-Jurgen Winter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:37
CPC Classifications
G; G11; G11B; G11B3/00; G11B3/44
Claims Analysis
Total Claims: 54
Claim 1
Independent Claim
156 words
In a device for scanning an information signal carrier having a groove defined by a groove surface, the device including a signal scanning means for scanning the information signals of said carrier, and a motive means for creating a relative velocity between said scanning means and said carrier along the groove during the scanning of information stored on said carrier, the improvement wherein: the signal scanning means includes an element suited at least for guiding said signal scanning means in said groove, said element having a rounded tracng surface which faces toward the information carrier and contacts a portion of the groove surface during operation and comprising a diamond having a natural crystal face portion which bounds the tracing surface and which enables recognition of the crystallographic orientation of the element, said element being aligned crystallographically so that a wear resistant crystallographic direction of the element extends approximately parallel too the direction of said relative velocity.
Claim 2
Dependent Claim
156 words
In a device for scanning an information signal carrier having a groove defined by a groove surface, the device including a signal scanning means for scanning the information signals of said carrier, and a motive means for creating a relative velocity between said scanning means and said carrier along the groove during the scanning of information stored on said carrier, the improvement wherein: the signal scanning means includes an element suited at least for guiding said signal scanning means in said groove, said element having a rounded tracng surface which faces toward the information carrier and contacts a portion of the groove surface during operation and comprising a diamond having a natural crystal face portion which bounds the tracing surface and which enables recognition of the crystallographic orientation of the element, said element being aligned crystallographically so that a wear resistant crystallographic direction of the element extends approximately parallel too the direction of said relative velocity.
Claim 3
Dependent Claim
31 words
using said natural crystal surface to crystallographically align the diamond in the signal scanner so that a wear resistant crystallographic direction extends approximately parallel to the longitudinal direction of the groove.
Claim 4
Dependent Claim
31 words
using said natural crystal surface to crystallographically align the diamond in the signal scanner so that a wear resistant crystallographic direction extends approximately parallel to the longitudinal direction of the groove.
Claim 5
Dependent Claim
26 words
In a device as claimed in claim 1, said element being further characterized by said tracing surface being bordered by at least one crystallographic octahedral surface.
Claim 6
Dependent Claim
30 words
using said natural crystal surface to crystallographically align the crystal on the signal scanner so that the wear resistant direction extends approximately parallel to the longitudinal direction of the groove.
Claim 7
Dependent Claim
30 words
using said natural crystal surface to crystallographically align the crystal on the signal scanner so that the wear resistant direction extends approximately parallel to the longitudinal direction of the groove.
Claim 8
Dependent Claim
34 words
using said natural crystal surface to crystallographically align the diamond on the signal scanner so that a wear resistant crystallographic direction of the element extends approximately parallel to the longitudinal direction of the groove.
Claim 9
Dependent Claim
34 words
using said natural crystal surface to crystallographically align the diamond on the signal scanner so that a wear resistant crystallographic direction of the element extends approximately parallel to the longitudinal direction of the groove.
Claim 10
Dependent Claim
30 words
In a device as claimed in claim 2, said element being further characterized by an appropriately parallel orientation of such an octahedral surface to the direction of the relative velocity.
Claim 11
Dependent Claim
25 words
In a device as claimed in claim 3, said element being further characterized in that such an octahedral surface is a natural crystal diamond face.
Claim 12
Dependent Claim
35 words
In a device as claimed in claim 3, said element being further characterized by a bordering of the tracing surface by two crystallographic octahedral surfaces extending approximately parallel to the direction of the relative velocity.
Claim 13
Dependent Claim
23 words
In a device as claimed in claim 5, said element being further characterized in that the two octahedral surfaces are natural crystal surfaces.
Claim 14
Dependent Claim
38 words
In a device as claimed in claim 3, said scanning element being further characterized by an orientation of the tracing surface essentially parallel to a crystallographic plane selected from the group consisting of the cubic and dodecahedral planes.
Claim 15
Dependent Claim
52 words
In a device as claimed in claim 7, said element being further characterized in that the tracing surface contains part of a natural crystal surface selected from the group consisting of cubic and dodecahedral surfaces, said diamond being selected from the group consisting of diamonds taken from the ground and synthetic diamonds.
Claim 16
Dependent Claim
60 words
In a device as claimed in claim 8, said element being further characterized in that said diamond is selected from the group consisting of diamond octahedrons and diamond pyramids, the triangular surfaces of such diamond forming crystallographic octahedral surfaces, the vertex of such diamond being chamfered and developed into a cubic surface, said tracing surface containing said developed cubic surface.
Claim 17
Dependent Claim
25 words
In a device as claimed in claim 9, said element being further characterized in that the tracing surface is bordered by four, natural, octahedral surfaces.
Claim 18
Dependent Claim
76 words
In a device as claimed in claim 8, said element being further characterized in that said diamond is selected from the group consisting of parts of diamond octahedronS, pyramids, cubo-octahedrons, and cubo-octahedral pyramid frustums whose side surfaces contain crystallographic octahedral surfaces and whose base surface is a crystallographic cubic surface, at least one of the edges between adjoining octahedral surfaces being chamfered and developed into a dodecahedral surface, said tracing surface containing the developed dodecahedral surface.
Claim 19
Dependent Claim
30 words
In a device as claimed in claim 11, said element being further characterized in that the tracing surface is bordered by two natural octahedral surfaces and two natural cubic surfaces.
Claim 20
Dependent Claim
49 words
In a device as claimed in claim 3, said element being further characterized in that the tracing surface is essentially symmetric about a symmetry plane determined by the direction of the relative velocity and the direction of a bearing force between the element and the surface of said groove.
Claim 21
Dependent Claim
56 words
In a device as claimed in claim 3, said element being further characterized in that the tracing surface is essentially symmetric about a symmetry plane determined by being perpendicular to the edge formed by the intersection of the tracing surface with the parallelly oriented octahedral surface, the parallelly oriented octahedral surface being a natural crystal face.
Claim 22
Dependent Claim
65 words
In a device as claim in claim 14, said element being further characterized by a symmetry about said symmetry plane with respect to the angles formed by the tracing surface with surfaces bordering the tracing surface at the tracing surface end in the direction of the relative velocity and at the tracing surface end in the direction counter to the direction of the relative velocity.
Claim 23
Dependent Claim
33 words
In a device as claimed in claim 2, said element being further characterized by an inclining of the tracing surface from the direction of the relative velocity, the inclining being up to 20*.
Claim 24
Dependent Claim
43 words
In a device as claimed in claim 2, said element being further characterized by an orientation of the diamond wherein one of its crystallographic cubic planes is inclined from the direction of the relative velocity, the angle of inclination being up to 20*.
Claim 25
Dependent Claim
37 words
In a device as claimed in claim 17, said element being further characterized by an orientation of said one cubic plane within the angular range extending between the tracing surface and the direction of the relative velocity.
Claim 26
Dependent Claim
44 words
In a device as claimed in claim 2, said element being further characterized by an orientation of the diamond wherein one of its crystallographic dodecahedral planes is inclined from the direction of the relative velocity, the angle of the inclination being up to 20*.
Claim 27
Dependent Claim
37 words
In a device as claimed in claim 19, said element being further characterized by an orientation of said one dodecahedral plane within the angular range extending between the tracing surface and the direction of the relative velocity.
Claim 28
Dependent Claim
31 words
In a device as claimed in claim 1, said element being further characterized by having a trailing edge formed by the intersection of a natural crystal surface with the tracing surface.
Claim 29
Independent Claim
48 words
A method for crystallographically aligning a diamond scanning element of a signal scanner, said element being guided in a groove having a longitudinal direction, said element having a tracing surface which contacts a portion of said groove and having surfaces with planar portions which bound said element comprising:
Claim 30
Independent Claim
48 words
A method for crystallographically aligning a diamond scanning element of a signal scanner, said element being guided in a groove having a longitudinal direction, said element having a tracing surface which contacts a portion of said groove and having surfaces with planar portions which bound said element comprising:
Claim 31
Independent Claim
49 words
A method for crystallographically aligning a diamond scanning element of a signal scanner, said scanninG element being guided in a groove having a longitudinal direction, said element having a tracing surface which contacts a portion of said groove and having surfaces with planar portions which bound said element comprising:
Claim 32
Independent Claim
49 words
A method for crystallographically aligning a diamond scanning element of a signal scanner, said scanninG element being guided in a groove having a longitudinal direction, said element having a tracing surface which contacts a portion of said groove and having surfaces with planar portions which bound said element comprising:
Claim 33
Independent Claim
67 words
A method for crystallographically aligning a diamond scanning element of a signal scanner, said element being guided in a groove of an information carrier having a scanning plane, said groove having a longitudinal direction and said element being relatively movable in said direction, said element having a tracing surface which contacts a portion of the groove and having surfaces with planar portions which bound said element comprising:
Claim 34
Independent Claim
67 words
A method for crystallographically aligning a diamond scanning element of a signal scanner, said element being guided in a groove of an information carrier having a scanning plane, said groove having a longitudinal direction and said element being relatively movable in said direction, said element having a tracing surface which contacts a portion of the groove and having surfaces with planar portions which bound said element comprising:
Claim 35
Dependent Claim
18 words
The method as defined in claim 24 wherein a natural octahedron surface is used to effect the alignment.
Claim 36
Dependent Claim
35 words
The method as defined in claim 25 wherein the scanning element is skid-shaped and a natural octahedron surface extending parallel to the longitudinal direction of the skid is used to align the skid-shaped scanning element.
Claim 37
Dependent Claim
43 words
The method as defined in claim 26 wherein during the alignment of the scanning element, its tracing surface is limited by two crystallographic octahedron surfaces which are aligned approximately parallel to the direction of movement of the scanning element relative to the groove.
Claim 38
Dependent Claim
17 words
The method as defined in claim 27 wherein the said crystallographic octahedron surfaces are natural crystal surfaces.
Claim 39
Dependent Claim
36 words
The method as defined in claim 25 wherein the tracing surface of the scanning element facing the groove is aligned to be parallel to a crystallographic plane selected from the group of cubic and dodecahedron planes.
Claim 40
Dependent Claim
49 words
The method as defined in claim 25 wherein a symmetrical scanning element is used which is so aligned that it lies symmetrical to a plane of symmetry which is defined by the longitudinal direction of the groove and the direction perpendicular to the scanning plane of the information carrier.
Claim 41
Dependent Claim
77 words
The method as defined in claim 25 wherein a symmetrical scanning element is used which is so aligned that it lies symmetrical to a plane of symmetry which extends perpendicular to the longitudinal direction of the tracing surface of the scanning element, that is, perpendicular to the line of intersection of the tracing surface with the approximately natural octahedron surface which extends approximately parallel to the direction of movement of the scanning element relative to the groove.
Claim 42
Dependent Claim
58 words
The method as defined in claim 25 wherein the diamond is selected from the group consisting of diamond pyramids and octahedrons, and at least part of the diamond whose triangular surfaces form crystallographic octahedron surfaces are rounded at the tips in such a way that the rounded portion forms the tracing surface and contains a crystallographic cube surface.
Claim 43
Dependent Claim
67 words
The method as defined in claim 25 wherein the diamond is selected from the group consisting of diamond octahedrons, pyramids, cubo-octahedrons and cubo-octahedron frustopyramids, and at least a portion of the diamonD whose side surfaces contain crystallographic octahedron surfaces and whose base is a crystallographic cube surface is rounded in such a manner that the rounded portion forms the tracing surface and contains a crystallographic dodecahedron surface.
Claim 44
Dependent Claim
28 words
The method as defined in claim 25 wherein a scanning element is used whose tracing surface is limited by two natural octahedron surfaces and two natural cube surfaces.
Claim 45
Dependent Claim
30 words
The method as defined in claim 25 wherein a scanning element is used which is limited against its direction of movement relative to the groove by a natural crystal surface.
Claim 46
Dependent Claim
79 words
The method as defined in claim 25 wherein a symmetrical scanning element is used, which is so aligned that it lies symmetrical to a plane of symmetry, said natural octahedron surface extends approximately parallel to the direction of movement of the element relative to the groove, said tracing surface has an edge which intersects said natural octahedron surface and extends essentially parallel to the longitudinal direction of the groove, and said plane of symmetry is perpendicular to said edge.
Claim 47
Dependent Claim
34 words
The method as defined in claim 24 wherein the scanning element is skid-shaped and a natural octahedron surface which borders the skid in the longitudinal direction is used to align the skid-shaped scanning element.
Claim 48
Dependent Claim
37 words
The method as defined in claim 37 wherein the tracing surface is rounded in such a way that it contains parts of a natural crystal surface which is selected from the group of cubic and dodecahedron surfaces.
Claim 49
Dependent Claim
23 words
The method as defined in claim 37 wherein a scanning element is used whose tracing surface is limited by four natural octahedron surfaces.
Claim 50
Dependent Claim
47 words
The method as defined in claim 24 wherein the tracing surface of the scanning element is aligned in such a manner that it is inclined at an angle of up to 20* with respect to the direction of movement of the scanning element relative to the groove.
Claim 51
Dependent Claim
39 words
The method as defined in claim 24 wherein a crystallographic cube surface of the diamond is aligned at an angle of up to 20* with respect to the direction of movement of the scanning element relative to the groove.
Claim 52
Dependent Claim
34 words
The method as defined in claim 41 wherein the crystallographic cube surface is aligned in the angular range between the tracing surface of the scanning element facing the groove and the direction of movement.
Claim 53
Dependent Claim
39 words
The method as defined in claim 24 wherein the crystallographic dodecahedron surface of the diamond is aligned at an angle of up to 20* with respect to the direction of movement of the scanning element relative to the groove.
Claim 54
Dependent Claim
34 words
The method as defined in claim 43 wherein the crystallographic dodecahedron surface is aligned in the angular range between the tracing surface of the scanning element facing the groove and the direction of movement.
References Cited (Backward Citations)
US3138875A
Cited
US3781020A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-04-14 | 1978-10-14 | 1979-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-14 | 1982-10-14 | 1983-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-14 | 1986-10-14 | 1987-04-15 | $7700.00 | Window Closed / Lapsed |