US4550381A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spectrometer gun
Assignee: ENERGY United States, Department of
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Filing: 1981-11-03
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Granted: 1985-10-29
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Expires: 2001-11-03
Abstract
Abstract A hand-holdable, battery-operated, microprocessor-based spectrometer gun includes a low-power matrix display and sufficient memory to permit both real-time observation and extended analysis of detected radiation pulses. Universality of the incorporated signal processing circuitry permits operation with various detectors having differing pulse detection and sensitivity parameters.
Inventors
- 👤 David A. Waechter
- 👤 Michael A. Wolf
- 👤 C. John Umbarger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:25
CPC Classifications
G; G01; G01J; G01J3/00; G01J3/02; G01J3/0264; G01J3/0272; G01J3/0283; G01J3/0291; G01R; G01R23/00; G01R23/16; G01R23/18; G01T; G01T1/00; G01T1/02; G01T1/026; G01T1/16; G01T1/167
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
207 words
A hand-holdable battery-operated spectrometer gun comprising: a barrel portion; a main body portion; a handle portion; detection means housed in said barrel portion for detecting a signal from a source and for generating an electrical output signal representative thereof; signal processing means housed in said main body portion for amplifying and shaping said electrical output signal of said detection means and for generating a digitized signal representative of said amplified and shaped electrical output signal; control means housed in said main body portion for digitally processing and storing said digitized signal generated by said signal processing means and for controlling a display thereof; display means housed in said main body portion for displaying said digitally processed and stored digitized signal of said control means, said display thereof being controlled by said control means; and battery means for powering said detection means, said signal processing means, said control means, and said display means, said battery means including a battery source housed in said handle portion, a high voltage converter housed in said barrel portion powered by said battery source for powering said detection means, and a low voltage converter housed in said main body portion for powering said signal processing means, said control means, and said display means.
Claim 2
Dependent Claim
207 words
A hand-holdable battery-operated spectrometer gun comprising: a barrel portion; a main body portion; a handle portion; detection means housed in said barrel portion for detecting a signal from a source and for generating an electrical output signal representative thereof; signal processing means housed in said main body portion for amplifying and shaping said electrical output signal of said detection means and for generating a digitized signal representative of said amplified and shaped electrical output signal; control means housed in said main body portion for digitally processing and storing said digitized signal generated by said signal processing means and for controlling a display thereof; display means housed in said main body portion for displaying said digitally processed and stored digitized signal of said control means, said display thereof being controlled by said control means; and battery means for powering said detection means, said signal processing means, said control means, and said display means, said battery means including a battery source housed in said handle portion, a high voltage converter housed in said barrel portion powered by said battery source for powering said detection means, and a low voltage converter housed in said main body portion for powering said signal processing means, said control means, and said display means.
Claim 3
Dependent Claim
22 words
The invention according to claim 1 wherein said battery source is a rechargeable Ni-Cd battery source comprising four AA size Ni-Cd batteries.
Claim 4
Dependent Claim
20 words
The invention according to claim 1 wherein said detector means includes in combination a gamma ray detector driving a phototube.
Claim 5
Dependent Claim
17 words
The invention according to claim 3 wherein said gamma ray detector is a NaI(T1) crystal type detector.
Claim 6
Dependent Claim
17 words
The invention according to claim 3 wherein said gamma ray detector is a cadmium telluride type detector.
References Cited (Backward Citations)
US4228512A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-10-28 | 1989-04-29 | 1989-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-10-28 | 1993-04-29 | 1993-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-10-28 | 1997-04-29 | 1997-10-29 | $7700.00 | Window Closed / Lapsed |