US3426200A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air gap conditioning system for a radiation gauge
Assignee: Industrial Nucleonics Corp
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Filing: 1967-01-16
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Granted: 1969-02-04
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Expires: 1987-01-16
Abstract
No abstract record available.
Inventors
- 👤 Don F Lehman
- 👤 Donald E Varner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:37
CPC Classifications
G; G01; G01N; G01N23/00; G01N23/02; G01N23/06; G01N23/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
MEASURING APPARATUS COMPRISING A RADIATION SOURCE PROVIDING RADIATION TOWARD A SHEET MATERIAL TO BE MEASURED, A RADIATION DETECTOR FOR DETECTING RADIATION FROM SAID MATERIAL, SAID RADIATION SOURCE AND DETECTOR DEFINING WITH SAID SHEET A MEASURING GAP THROUGH WHICH SAID RADIATION PASSES, A MANIFOLD FIXEDLY POSITIONED ABOUT THE OUTER LIMITS OF SAID MEASURING GAP AND SUBSTANTIALLY SURROUNDING SAID GAP, SAID MANIFOLD HAVING A PLURALITY OF SPACED OPENINGS IN COMMUNICATION WITH SAID MEASURING GAP, MEANS FOR GENERATING HEATED AIR, MANS FOR PASSING SAID HEATED AIR INTO SAID MANIFOLD, AND MEANS FOR DISCHARGING SAID HEATED AIR FROM SAID EXHAUST PORTS TO MAINTAIN SAID MEASURING GAP AT A SUBSTANTIALLY CONSTANT TEMPERATURE.
Claim 2
Dependent Claim
107 words
MEASURING APPARATUS COMPRISING A RADIATION SOURCE PROVIDING RADIATION TOWARD A SHEET MATERIAL TO BE MEASURED, A RADIATION DETECTOR FOR DETECTING RADIATION FROM SAID MATERIAL, SAID RADIATION SOURCE AND DETECTOR DEFINING WITH SAID SHEET A MEASURING GAP THROUGH WHICH SAID RADIATION PASSES, A MANIFOLD FIXEDLY POSITIONED ABOUT THE OUTER LIMITS OF SAID MEASURING GAP AND SUBSTANTIALLY SURROUNDING SAID GAP, SAID MANIFOLD HAVING A PLURALITY OF SPACED OPENINGS IN COMMUNICATION WITH SAID MEASURING GAP, MEANS FOR GENERATING HEATED AIR, MANS FOR PASSING SAID HEATED AIR INTO SAID MANIFOLD, AND MEANS FOR DISCHARGING SAID HEATED AIR FROM SAID EXHAUST PORTS TO MAINTAIN SAID MEASURING GAP AT A SUBSTANTIALLY CONSTANT TEMPERATURE.
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) | 1972-02-04 | 1972-08-05 | 1973-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-04 | 1976-08-05 | 1977-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-04 | 1980-08-05 | 1981-02-04 | $7700.00 | Window Closed / Lapsed |