US3273054A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipe joint locator comprising mobile transformer utilizing the pipe as low reluctance path between primary and secondary
Assignee: C W FUELLING Inc
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Filing: 1961-11-16
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Granted: 1966-09-13
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Expires: 1981-11-16
Abstract
No abstract record available.
Inventors
- 👤 Robert W Cook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:56
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/72; G01N27/82; G01N27/90; G01N27/9093; E; E21; E21B; E21B47/00; E21B47/09; E21B47/092; G01B; G01B7/00; G01B7/02; G01B7/06; G01B7/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
A PIPELINE JOINT-LOCATING DEVICE COMPRISING: PRIMARY AND SECONDARY INDUCTORS, SAID PRIMARY INDUCTOR HAVING A FIRST ELONGATED CORE OF FERROMAGNETIC MATERIAL AND A FIRST COIL MOUNTED THEREON, AND SAID SECONDARY INDUCTOR HAVING A SECOND ELONGATED CORE OF FERROMAGNETIC MATERIAL AND A SECOND COIL MOUNTED THEREON; A MOBILE FRAME SUPPORTING SAID INDUCTORS IN MUTUALLY INDUCTIVE SPACED RELATION, THE SPACING OF SAID INDUCTORS BEING PREDETERMINED TO PROVIDE A HIGH RELUCTANCE FIELD BETWEEN SAID INDUCTORS; FOUR FERROMAGNETIC WHEELS MOUNTED TO SAID CORES, SAID WHEELS BEING DISPOSED WITH THEIR AXES OF ROTATION LYING IN TWO HORIZONTALLY SPACED PLANES, SAID PLANES BEING PARALLEL TO SAID CORES AND SAID WHEELS BEING SPACED FROM EACH OTHER FOR STABLY SUPPORTING SAID DEVICE AND ITS FRAME IN A HORIZONTAL PIPE OF FERROMAGNETIC MATERIAL TO PROVIDE A LOW RELUTANCE PATH BETWEEN SAID INDUCTORS THROUGH THE PIPE.
Claim 2
Dependent Claim
135 words
A PIPELINE JOINT-LOCATING DEVICE COMPRISING: PRIMARY AND SECONDARY INDUCTORS, SAID PRIMARY INDUCTOR HAVING A FIRST ELONGATED CORE OF FERROMAGNETIC MATERIAL AND A FIRST COIL MOUNTED THEREON, AND SAID SECONDARY INDUCTOR HAVING A SECOND ELONGATED CORE OF FERROMAGNETIC MATERIAL AND A SECOND COIL MOUNTED THEREON; A MOBILE FRAME SUPPORTING SAID INDUCTORS IN MUTUALLY INDUCTIVE SPACED RELATION, THE SPACING OF SAID INDUCTORS BEING PREDETERMINED TO PROVIDE A HIGH RELUCTANCE FIELD BETWEEN SAID INDUCTORS; FOUR FERROMAGNETIC WHEELS MOUNTED TO SAID CORES, SAID WHEELS BEING DISPOSED WITH THEIR AXES OF ROTATION LYING IN TWO HORIZONTALLY SPACED PLANES, SAID PLANES BEING PARALLEL TO SAID CORES AND SAID WHEELS BEING SPACED FROM EACH OTHER FOR STABLY SUPPORTING SAID DEVICE AND ITS FRAME IN A HORIZONTAL PIPE OF FERROMAGNETIC MATERIAL TO PROVIDE A LOW RELUTANCE PATH BETWEEN SAID INDUCTORS THROUGH THE PIPE.
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) | 1969-09-12 | 1970-03-14 | 1970-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-12 | 1974-03-14 | 1974-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-12 | 1978-03-14 | 1978-09-13 | $7700.00 | Window Closed / Lapsed |