Patent US3583812A successfully refreshed from Google Patents.
US3583812A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device used in the excitation of substances for spectroscopic analysis
Assignee: Commissariat à l'Énergie Atomique et Aux Énergies Alternatives
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Filing: 1969-12-09
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Granted: 1971-06-08
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Expires: 1989-12-09
Abstract
Abstract In a device which permits analysis of all the points of a filter or of a solid with the same degree of accuracy, a turntable placed beneath a vertical electrode serves as a support for the substance to be analyzed and is in turn supported by a laterally movable carriage. A motor which is mounted on the carriage serves to drive the turntable in rotation and to control the displacement of the carriage. The speeds of rotational and translational motion are controlled in such a manner as to ensure that the different points of the turntable pass opposite to the electrode along a spiral path and at constant speed.
Inventors
- 👤 Pierre Blum
- 👤 Jean Spitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:56
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/62; G01N21/66; G01N21/67
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
31 words
A device in accordance with claim 1, said turntable being mounted on a shaft freely rotating on said carriage and driven by said motor, said motor being mounted on said carriage.
Claim 2
Dependent Claim
39 words
A device in accordance with claim 2, including a stationary toothed rack parallel to said turntable, a pinion engaging said rack and connected to said carriage for translational motion and a clutch unit coupling said pinion to said motor.
Claim 3
Dependent Claim
39 words
A device in accordance with claim 1, including a strip on said carriage forming an electric contact with said electric resistor, a support frame for the device, a rectilinear rod secured to said support frame and mounting said resistor.
References Cited (Backward Citations)
US2584052A
Cited
FR1406497A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-07 | 1974-12-07 | 1975-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-07 | 1978-12-07 | 1979-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-07 | 1982-12-07 | 1983-06-08 | $7700.00 | Window Closed / Lapsed |