US3334228A
Expired / Lapsed
US
⏱️ 0.0 years remaining
X-ray spectrometer having an x-ray source with a continuously cleaned x-ray target
Assignee: General Electric Co
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Filing: 1964-11-06
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Granted: 1967-08-01
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Expires: 1984-11-06
Abstract
No abstract record available.
Inventors
- 👤 Rodney A Mattson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:21
CPC Classifications
G; G01; G01N; G01N23/00; G01N23/22; G01N23/223; H; H01; H01J; H01J35/00; H01J35/02; H01J35/04; H01J35/08; H01J35/10; G01N2223/00; G01N2223/07; G01N2223/076
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
148 words
AN X-RAY SPECTROMETER COMPRISING: (A) AN EVACUABLE ENCLOSURE MEANS, (B) A MOVABLE X-RAY TARGET WITHIN THE ENCLOSURE MEANS, (C) A SOURCE OF ELECTRONS, (D) SAID TARGET HAVING A FIRST SURFACE REGION ON WHICH IMPINGING ELECTRONS ARE ATTRACTED FROM THE SOURCE TO PRODUCE PRIMARY X-RAYS, (E) AN ION GUN MEANS HAVING A DISCHARGE OPENING FOR IONS THAT IMPINGE ON A SECOND SURFACE REGION OF THE TARGET TO CLEAN THE SAME REMOTELY FROM THE FIRST REGION, (F) WHEREUPON MOVEMENT OF THE TARGET PRESENTS THE SECOND REGION AS A CLEAN FIRST REGION TARGET SURFACE TO THE IMPINGING ELECTRONS, (G) MEANS FOR LOCATING A SAMPLE NEAR THE TARGET FOR EXCITING THE SAME WITH PRIMARY X-RAYS TO PRODUCE X-RAYS THAT ARE CHARACTERISTIC OF THE ELEMENTS IN THE SAMPLE, (H) AN X-RAY DETECTOR, AND (I) A DIFFRACTING CRYSTAL LOCATED TO INTERCEPT CHARACTERISTIC X-RAYS FROM A SAMPLE AND DIFFRACT PARTICULAR WAVELENGTHS THEREOF INTO THE DETECTOR.
Claim 2
Dependent Claim
148 words
AN X-RAY SPECTROMETER COMPRISING: (A) AN EVACUABLE ENCLOSURE MEANS, (B) A MOVABLE X-RAY TARGET WITHIN THE ENCLOSURE MEANS, (C) A SOURCE OF ELECTRONS, (D) SAID TARGET HAVING A FIRST SURFACE REGION ON WHICH IMPINGING ELECTRONS ARE ATTRACTED FROM THE SOURCE TO PRODUCE PRIMARY X-RAYS, (E) AN ION GUN MEANS HAVING A DISCHARGE OPENING FOR IONS THAT IMPINGE ON A SECOND SURFACE REGION OF THE TARGET TO CLEAN THE SAME REMOTELY FROM THE FIRST REGION, (F) WHEREUPON MOVEMENT OF THE TARGET PRESENTS THE SECOND REGION AS A CLEAN FIRST REGION TARGET SURFACE TO THE IMPINGING ELECTRONS, (G) MEANS FOR LOCATING A SAMPLE NEAR THE TARGET FOR EXCITING THE SAME WITH PRIMARY X-RAYS TO PRODUCE X-RAYS THAT ARE CHARACTERISTIC OF THE ELEMENTS IN THE SAMPLE, (H) AN X-RAY DETECTOR, AND (I) A DIFFRACTING CRYSTAL LOCATED TO INTERCEPT CHARACTERISTIC X-RAYS FROM A SAMPLE AND DIFFRACT PARTICULAR WAVELENGTHS THEREOF INTO THE DETECTOR.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-31 | 1971-01-30 | 1971-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-31 | 1975-01-30 | 1975-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-31 | 1979-01-30 | 1979-08-01 | $7700.00 | Window Closed / Lapsed |