US3313147A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Non-destructive testing of structures
Assignee: Dow Chemical Co
•
Filing: 1964-04-27
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Granted: 1967-04-11
•
Expires: 1984-04-27
Abstract
No abstract record available.
Inventors
- 👤 James W Rebbeck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 03:32
CPC Classifications
G; G01; G01N; G01N3/00; G01N3/08; G01N3/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
164 words
AN APPARATUS FOR THE NON-DESTRUCTIVE TESTING OF A STRUCTURAL MEMBER WHICH COMPRISES: (A) A PUMP FOR DELIVERY OF FLUID UNDER PRESSURE; (B) A FLUID SUPPLY FOR SAID PUMP; (C) A HYDRAULIC CYLINDER AND PISTON COMBINATION, SAID PISTON SLIDABLY ENGAGING THE INNER WALLS OF SAID HYDRAULIC CYLINDER, SAID CYLINDER AND PISTON COMBINATION BEING OF SUFFICIENT STRENGTH FOR IT TO TAKE THE PRESSURE IMPOSED ON EACH ELEMENT OF SAID COMBINATION WITHOUT REACHING THE ELASTIC LIMIT OF EACH ELEMENT OF THE COMBINATION AND SAID HYDRAULIC CYLINDER BEING IN COMMUNICATION WITH SAID PUMP; (D) MEANS TO APPLY THE FORCE OF THE MOVEMENT OF THE PISTON TO THE STRUCTURAL MEMBER, THEREBY SUBJECTING THE MEMBER TO A STRESSING ACTION; (E) SUPPORT MEANS TO FIRMLY HOLD IN PLACE SAID STRUCTURAL MEMBER TO BE TESTED; (F) A PRESSURE TRANSDUCER; (G) A QUANTITY TRANSDUCER; AND (H) A RECORDER, SAID PRESSURE TRANSDUCER BEING CONNECTED TO SAID HYDRAULIC CYLINDER AND TO SAID RECORDER, SAID QUANTITY TRANSDUCER BEING CONNECTED TO SAID PUMP AND TO SAID RECORDER.
Claim 2
Independent Claim
164 words
AN APPARATUS FOR THE NON-DESTRUCTIVE TESTING OF A STRUCTURAL MEMBER WHICH COMPRISES: (A) A PUMP FOR DELIVERY OF FLUID UNDER PRESSURE; (B) A FLUID SUPPLY FOR SAID PUMP; (C) A HYDRAULIC CYLINDER AND PISTON COMBINATION, SAID PISTON SLIDABLY ENGAGING THE INNER WALLS OF SAID HYDRAULIC CYLINDER, SAID CYLINDER AND PISTON COMBINATION BEING OF SUFFICIENT STRENGTH FOR IT TO TAKE THE PRESSURE IMPOSED ON EACH ELEMENT OF SAID COMBINATION WITHOUT REACHING THE ELASTIC LIMIT OF EACH ELEMENT OF THE COMBINATION AND SAID HYDRAULIC CYLINDER BEING IN COMMUNICATION WITH SAID PUMP; (D) MEANS TO APPLY THE FORCE OF THE MOVEMENT OF THE PISTON TO THE STRUCTURAL MEMBER, THEREBY SUBJECTING THE MEMBER TO A STRESSING ACTION; (E) SUPPORT MEANS TO FIRMLY HOLD IN PLACE SAID STRUCTURAL MEMBER TO BE TESTED; (F) A PRESSURE TRANSDUCER; (G) A QUANTITY TRANSDUCER; AND (H) A RECORDER, SAID PRESSURE TRANSDUCER BEING CONNECTED TO SAID HYDRAULIC CYLINDER AND TO SAID RECORDER, SAID QUANTITY TRANSDUCER BEING CONNECTED TO SAID PUMP AND TO SAID RECORDER.
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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) | 1970-04-10 | 1970-10-10 | 1971-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-10 | 1974-10-10 | 1975-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-10 | 1978-10-10 | 1979-04-11 | $7700.00 | Window Closed / Lapsed |