US3906225A
Expired / Lapsed
US
⏱️ 0.0 years remaining
X-ray spectrometer
Assignee: APPLIC MICANIQUES A L ELECTRON
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Filing: 1973-12-13
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Granted: 1975-09-16
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Expires: 1993-12-13
Abstract
Abstract In an X-ray spectrometer, where the analyser crystal is, conventionally, mounted on a support plate at a first end thereof, the first and second ends of the support plate having translational motions respectively along first and second intersecting axes, the detector is carried by a link, two points of which are constrained to remain on respective circles of the support plate, one of them by means of an arm rotatably mounted on the support plate. The correct position of the detector for a given position of the analyser is achieved by means of a gear coupling the arm to a member mounted for translating parallel to the second axis, the support plate being, at its second end, rotatably coupled to this member.
Inventors
- 👤 Jacques Guernet
- 👤 Pierre Boissel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:46
CPC Classifications
G; G01; G01N; G01N23/00; G01N23/20; G01N23/207; G01N23/2076
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
240 words
An X-ray spectrometer comprising: a support plate having first and second end points mounted for translating along first and second fixed translation axes respectively, said translation axes being at an angle to each other; an analyser crystal mounted on said support plate, and having a point coincident with said first end point; a member mounted for translating parallel to said second translation axis, said support plate being rotatably mounted relatively to said member about a first rotation axis passing through said second end point; a main arm rotatably mounted relatively to said support plate about a second rotation axis intersecting said support plate at a further point thereof distinct from the centre of the Rowland circle defined by said two end points and the point of intersection of said two translation axes; a link rotatably mounted, relatively to said arm, about a third rotation axis, the distance between said second and third rotation axes being equal to the radius R of the Rowland circle; an X-ray detector, a predetermined point of which is fixed relatively to said link; further means for causing said link to have a fixed orientation relatively to said support plate; and a mechanical coupling between said arm and said member for causing said arm to rotate relatively to the support plate by an angle double from the rotation angle of the rotation component of the motion of said support plate relatively to said second translation axis.
Claim 2
Dependent Claim
240 words
An X-ray spectrometer comprising: a support plate having first and second end points mounted for translating along first and second fixed translation axes respectively, said translation axes being at an angle to each other; an analyser crystal mounted on said support plate, and having a point coincident with said first end point; a member mounted for translating parallel to said second translation axis, said support plate being rotatably mounted relatively to said member about a first rotation axis passing through said second end point; a main arm rotatably mounted relatively to said support plate about a second rotation axis intersecting said support plate at a further point thereof distinct from the centre of the Rowland circle defined by said two end points and the point of intersection of said two translation axes; a link rotatably mounted, relatively to said arm, about a third rotation axis, the distance between said second and third rotation axes being equal to the radius R of the Rowland circle; an X-ray detector, a predetermined point of which is fixed relatively to said link; further means for causing said link to have a fixed orientation relatively to said support plate; and a mechanical coupling between said arm and said member for causing said arm to rotate relatively to the support plate by an angle double from the rotation angle of the rotation component of the motion of said support plate relatively to said second translation axis.
Claim 3
Dependent Claim
39 words
A spectrometer as claimed in claim 1, wherein said mechanical coupling is formed by the two elements of a cylindrical gear, one of said elements being integral with said arm and the other one being integral with said member.
Claim 4
Dependent Claim
40 words
A spectrometer as claimed in claim 1, wherein said further means are guiding means for guiding a point on said link, relatively to said support plate, along a circle of radius R whose centre is distinct from said further point.
Claim 5
Dependent Claim
45 words
A spectrometer as claimed in claim 3, wherein said guiding means comprises a cylindrical surface formed on said support plate, a roller movable about a pivot passing through said point on said link, and a device keeping said roller in contact with said cylindrical surface.
Claim 6
Dependent Claim
20 words
A spectrometer as claimed in claim 3, wherein said guiding means comprises a circular slide formed in said support plate.
Claim 7
Dependent Claim
63 words
A spectrometer as claimed in claim 3, wherein said guiding means comprises an auxiliary arm rotatably mounted relatively to said support plate, about a fourth rotation axis, said link being rotatably mounted, relatively to said auxiliary arm, about a fifth rotation axis, the distance between said second and fourth rotation axes being equal to the distance between said third and fifth rotation axes.
Claim 8
Dependent Claim
67 words
A spectrometer as claimed in claim 1, wherein said detector is rotatably mounted about a pivot of said link, said spectrometer further comprising a lever integral with said detector, and a shaft, the axis of which is integral with said main arm, the axes of said shaft and said pivot being equidistant from said third rotation axis, and said lever having a groove for receiving said shaft.
References Cited (Backward Citations)
US3486021A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-09-15 | 1979-03-17 | 1979-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-15 | 1983-03-17 | 1983-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-15 | 1987-03-17 | 1987-09-16 | $7700.00 | Window Closed / Lapsed |