Patent US3146349A successfully refreshed from Google Patents.
US3146349A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Detecting hidden explosives using neutron beams
Assignee: Individual
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Filing: 1961-12-01
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Granted: 1964-08-25
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Expires: 1981-12-01
Abstract
No abstract record available.
Inventors
- 👤 Edward D Jordan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:41
CPC Classifications
H; H02; H02B; H02B1/00; H02B1/015; H02B1/04; H02B1/056; G; G01; G01N; G01N23/00; G01N23/22; G01N23/221; G01N23/222; G01V; G01V5/00; G01V5/20; G01V5/22; G01V5/234; G01N2223/00; G01N2223/07; G01N2223/074; G01N2223/0745; G01N33/00; G01N33/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
A METHOD FOR DETECTING EXPLOSIVES IN LUGGAGE IN WHICH THE EXPLOSIVES HAVE BEEN SEEDED WITH A HIGH CROSS SECTION NEUTRON ABSORBER COMPRISING PLACING A LOW LEVEL THERMAL NEUTRON SOURCE ALONG ONE SIDE OF SAID LUGGAGE, SAID SOURCE HAVING A SUFFICIENTLY LOW FLUX DENSITY AS TO BE NON-DESTRUCTIVE TO THE CONTENTS OF ORDINARY LUGGAGE INCLUDING PHOTOGRAPHIC FILM, IRRADIATING SAID LUGGAGE WITH SAID THERMAL NEUTRON SOURCE, PLACING A GAMMA RAY DETECTOR ON THE OTHER SIDE OF SAID LUGGAGE, AND COMPARING THE AMOUNT OF GAMMA RAYS EMITTED DIRECTLY BY SAID ABSORBER WITH BACKGROUND GAMMA RAYS AS AN INDICATION OF THE PRESENCE OF AN EXPLOSIVE.
Claim 2
Independent Claim
101 words
A METHOD FOR DETECTING EXPLOSIVES IN LUGGAGE IN WHICH THE EXPLOSIVES HAVE BEEN SEEDED WITH A HIGH CROSS SECTION NEUTRON ABSORBER COMPRISING PLACING A LOW LEVEL THERMAL NEUTRON SOURCE ALONG ONE SIDE OF SAID LUGGAGE, SAID SOURCE HAVING A SUFFICIENTLY LOW FLUX DENSITY AS TO BE NON-DESTRUCTIVE TO THE CONTENTS OF ORDINARY LUGGAGE INCLUDING PHOTOGRAPHIC FILM, IRRADIATING SAID LUGGAGE WITH SAID THERMAL NEUTRON SOURCE, PLACING A GAMMA RAY DETECTOR ON THE OTHER SIDE OF SAID LUGGAGE, AND COMPARING THE AMOUNT OF GAMMA RAYS EMITTED DIRECTLY BY SAID ABSORBER WITH BACKGROUND GAMMA RAYS AS AN INDICATION OF THE PRESENCE OF AN EXPLOSIVE.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-25 | 1968-02-24 | 1968-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-25 | 1972-02-24 | 1972-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-25 | 1976-02-24 | 1976-08-25 | $7700.00 | Window Closed / Lapsed |