US3244972A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Test-coil positioning mechanism
Assignee: United States Steel Corp
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Filing: 1964-03-25
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Granted: 1966-04-05
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Expires: 1984-03-25
Abstract
No abstract record available.
Inventors
- 👤 Delbert H Fisher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:19
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/72; G01N27/82; G01N27/90; G01N27/9093
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
PIPE-TESTING APPARATUS COMPRISING A CAR ADAPTED TO TRAVEL LONGITUDINALLY OF A LENGTH OF PIPE SUPPORTED FOR ROTATION, A VERTICALLY-RECIPROCABLE FRAME DEPENDING FROM SAID CAR, MEANS ON THE CAR FOR RAISING AND LOWERING SAID FRAME, A BELL CRANK PIVOTED ON SAID FRAME HAVING A MAGNETIC-FIELD EXPLORING COIL THEREON, A CAM PIVOTED ON SAID FRAME ADAPTED TO TILT SAID CRANK TOWARD AND AWAY FROM AN OPERATIVE TESTING POSITION RELATIVE TO SAID PIPE, A PIPE-MAGNETIZING MEANS MOUNTED ADJACENT SAID PIPE AND MEANS ACTUATED BY MOVEMENT OF SAID FRAME RELATIVE TO SAID CAR, EFFECTIVE TO TURN SAID CAM.
Claim 2
Dependent Claim
94 words
PIPE-TESTING APPARATUS COMPRISING A CAR ADAPTED TO TRAVEL LONGITUDINALLY OF A LENGTH OF PIPE SUPPORTED FOR ROTATION, A VERTICALLY-RECIPROCABLE FRAME DEPENDING FROM SAID CAR, MEANS ON THE CAR FOR RAISING AND LOWERING SAID FRAME, A BELL CRANK PIVOTED ON SAID FRAME HAVING A MAGNETIC-FIELD EXPLORING COIL THEREON, A CAM PIVOTED ON SAID FRAME ADAPTED TO TILT SAID CRANK TOWARD AND AWAY FROM AN OPERATIVE TESTING POSITION RELATIVE TO SAID PIPE, A PIPE-MAGNETIZING MEANS MOUNTED ADJACENT SAID PIPE AND MEANS ACTUATED BY MOVEMENT OF SAID FRAME RELATIVE TO SAID CAR, EFFECTIVE TO TURN SAID CAM.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-04 | 1969-10-04 | 1970-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-04 | 1973-10-04 | 1974-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-04 | 1977-10-04 | 1978-04-05 | $7700.00 | Window Closed / Lapsed |