US3102952A
Expired / Lapsed
US
⏱️ 0.0 years remaining
X-ray fluorescence analysis of multi-component systems
Assignee: US Philips Corp
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Filing: 1954-05-27
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Granted: 1963-09-03
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Expires: 1974-05-27
Abstract
No abstract record available.
Inventors
- 👤 Charles F Hendee
- 👤 Fine Samuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:41
CPC Classifications
G; G01; G01N; G01N23/00; G01N23/22; G01N23/223; G01N2223/00; G01N2223/07; G01N2223/076
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
A METHOD OF ANALYZING A MATERIAL FOR CONSTITUENT ELEMENTS THEREOF, COMPRISING THE STEPS OF EXPOSING A SPECIMEN OF SAID MATERIAL TO RADIATION OF SUFFICIENT INTENSITY TO EXCITE THE CHARACTERISTIC FLUORESCENT X-RAY SPECTRUM OF AT LEAST ONE OF SAID ELEMENTS, DIRECTLY DETECTING SAID FLUORESCENT X-RADIATION WITH A PROPORTIONAL COUNTER PRODUCING THEREFROM A SUCCESSION OF ELECTRICAL PULSES HAVING VARYING AMPLITUDES PROPORTIONAL TO THE WAVELENGTHS IN SAID SPECTRUM AND AT DIFFERENT RATES, MEASURING THE NUMBERS OF PULSES IN ADJACENT NARROW AMPLITUDE RANGES TO DETERMINE THE DISTRIBUTION OF SAID PULSES IN TERMS OF NUMBERS PER GIVEN AMPLITUDE RANGE, AND COMPARING SAID PULSE AMPLITUDE DISTRIBUTION WITH THAT OBTAINED IN LIKE MANNER FROM A MATERIAL OF KNOWN COMPOSITION, THEREBY TO OBTAIN AN INDICATION OF THE COMPOSITION OF THE SPECIMEN.
Claim 2
Independent Claim
123 words
A METHOD OF ANALYZING A MATERIAL FOR CONSTITUENT ELEMENTS THEREOF, COMPRISING THE STEPS OF EXPOSING A SPECIMEN OF SAID MATERIAL TO RADIATION OF SUFFICIENT INTENSITY TO EXCITE THE CHARACTERISTIC FLUORESCENT X-RAY SPECTRUM OF AT LEAST ONE OF SAID ELEMENTS, DIRECTLY DETECTING SAID FLUORESCENT X-RADIATION WITH A PROPORTIONAL COUNTER PRODUCING THEREFROM A SUCCESSION OF ELECTRICAL PULSES HAVING VARYING AMPLITUDES PROPORTIONAL TO THE WAVELENGTHS IN SAID SPECTRUM AND AT DIFFERENT RATES, MEASURING THE NUMBERS OF PULSES IN ADJACENT NARROW AMPLITUDE RANGES TO DETERMINE THE DISTRIBUTION OF SAID PULSES IN TERMS OF NUMBERS PER GIVEN AMPLITUDE RANGE, AND COMPARING SAID PULSE AMPLITUDE DISTRIBUTION WITH THAT OBTAINED IN LIKE MANNER FROM A MATERIAL OF KNOWN COMPOSITION, THEREBY TO OBTAIN AN INDICATION OF THE COMPOSITION OF THE SPECIMEN.
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) | 1966-09-02 | 1967-03-04 | 1967-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-02 | 1971-03-04 | 1971-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-02 | 1975-03-04 | 1975-09-03 | $7700.00 | Window Closed / Lapsed |