US3133638A
Expired / Lapsed
US
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Inspection apparatus
Assignee: Industrial Dynamics Co Ltd
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Filing: 1960-06-20
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Granted: 1964-05-19
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Expires: 1980-06-20
Abstract
No abstract record available.
Inventors
- 👤 Fredrick L Calhoun
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:27
CPC Classifications
B; B07; B07C; B07C5/00; B07C5/34; B07C5/3404; G; G01; G01F; G01F23/00; G01F23/22; G01F23/28; G01F23/284; G01F23/292; G01F23/2921; Y; Y10; Y10S; Y10S209/00; Y10S209/907
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
158 words
APPARATUS FOR INSPECTING THE LEVEL OF LIQUID IN A CONTAINER WHEREIN THE LIQUID HAS PROPERTIES OF DIFFUSING ENERGY PASSING INTO THE LIQUID, INCLUDING, A SOURCE OF ENERGY DISPOSED TO DIRECT ENERGY TOWARD THE CONTAINER FOR PASSAGE OF THE ENERGY INTO THE CONTAINER AND INTO THE LIQUID IN THE CONTAINER, FIRST MEANS DISPOSED RELATIVE TO THE CONTAINER FOR RECEIVING ONLY THE DIFFUSED ENERGY PASSING FROM THE CONTAINER AT A FIRST PARTICULAR LEVEL OF THE LIQUID IN THE CONTAINER, SECOND MEANS DISPOSED RELATIVE TO THE CONTAINER FOR RECEIVING ONLY THE DIFFUSED ENERGY PASSING FROM THE CONTAINER AT A SECOND PARTICULAR LEVEL OF THE LIQUID IN THE CONTAINER WHERE THE SECOND PARTICULAR LEVEL IS DIFFERENT FROM THE FIRST PARTICULAR LEVEL, AND MEANS OPERATIVELY COUPLED TO THE FIRST AND SECOND RECEIVING MEANS FOR PROVIDING AN INDICATION OF THE LEVEL OF THE LIQUID IN THE RECEIVING MEANS IN ACCORDANCE WITH THE RECEPTION OF THE DIFFUSED ENERGY BY THE FIRST AND SECOND RECEIVING MEANS.
Claim 2
Dependent Claim
158 words
APPARATUS FOR INSPECTING THE LEVEL OF LIQUID IN A CONTAINER WHEREIN THE LIQUID HAS PROPERTIES OF DIFFUSING ENERGY PASSING INTO THE LIQUID, INCLUDING, A SOURCE OF ENERGY DISPOSED TO DIRECT ENERGY TOWARD THE CONTAINER FOR PASSAGE OF THE ENERGY INTO THE CONTAINER AND INTO THE LIQUID IN THE CONTAINER, FIRST MEANS DISPOSED RELATIVE TO THE CONTAINER FOR RECEIVING ONLY THE DIFFUSED ENERGY PASSING FROM THE CONTAINER AT A FIRST PARTICULAR LEVEL OF THE LIQUID IN THE CONTAINER, SECOND MEANS DISPOSED RELATIVE TO THE CONTAINER FOR RECEIVING ONLY THE DIFFUSED ENERGY PASSING FROM THE CONTAINER AT A SECOND PARTICULAR LEVEL OF THE LIQUID IN THE CONTAINER WHERE THE SECOND PARTICULAR LEVEL IS DIFFERENT FROM THE FIRST PARTICULAR LEVEL, AND MEANS OPERATIVELY COUPLED TO THE FIRST AND SECOND RECEIVING MEANS FOR PROVIDING AN INDICATION OF THE LEVEL OF THE LIQUID IN THE RECEIVING MEANS IN ACCORDANCE WITH THE RECEPTION OF THE DIFFUSED ENERGY BY THE FIRST AND SECOND RECEIVING MEANS.
References Cited (Backward Citations)
US1737126A
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US2085671A
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US2415174A
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US2884783A
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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) | 1967-05-19 | 1967-11-18 | 1968-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-19 | 1971-11-18 | 1972-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-19 | 1975-11-18 | 1976-05-19 | $7700.00 | Window Closed / Lapsed |