US3144104A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coilable tube device
Assignee: De Havilland Aircraft of Canada Ltd
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Filing: 1961-08-03
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Granted: 1964-08-11
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Expires: 1981-08-03
Abstract
No abstract record available.
Inventors
- 👤 Weir Edward Arthur
- 👤 Mee Francis Herbert Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:33
CPC Classifications
F; F16; F16L; F16L9/00; F16L9/17; E; E04; E04C; E04C3/00; E04C3/005; H; H01; H01Q; H01Q1/00; H01Q1/08; H01Q1/085; H01Q1/087
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
A SELF-SUPPORTING TUBE DEVICE COMPRISING: AN ELONGATE RESILIENT STRIP PERMANENTLY DEFORMED INTO A HOLLOW TUBE ABOUT THE LONGITUDINAL AXIS; A TUBE GUIDE SUPPORTED IN A FRAME; A ROTATABLY MOUNTED REEL IN SAID FRAME; SAID REEL CONSISTING OF A COIL STORAGE DRUM AND A PAIR OF INWARDLY DEPENDING CONICAL DISCS SECURED TO EACH END AND CONCENTRIC THEREWITH; SAID TUBE BEING INSERTED IN SAID GUIDE AND COILED ABOUT SAID DRUM WITH THE SEAM FACING OUTWARDLY, WHEREBY SAID TUBE IS TEMPORARILY OPENED FLAT WHILE COILED; AND THE FLATTENED WIDTH OF SAID TUBE BEING GREATER THAN THE DISTANCE BETWEEN THE RIMS OF SAID DISCS, WHEREBY UPON RELEASE OF SAID REEL, SAID TUBE WILL UNCOIL FROM SAID DRUM AND PROJECT THROUGH SAID GUIDE IN A STRAIGHT LINE, REFORMING INTO A TUBULAR SHAPE.
Claim 2
Dependent Claim
127 words
A SELF-SUPPORTING TUBE DEVICE COMPRISING: AN ELONGATE RESILIENT STRIP PERMANENTLY DEFORMED INTO A HOLLOW TUBE ABOUT THE LONGITUDINAL AXIS; A TUBE GUIDE SUPPORTED IN A FRAME; A ROTATABLY MOUNTED REEL IN SAID FRAME; SAID REEL CONSISTING OF A COIL STORAGE DRUM AND A PAIR OF INWARDLY DEPENDING CONICAL DISCS SECURED TO EACH END AND CONCENTRIC THEREWITH; SAID TUBE BEING INSERTED IN SAID GUIDE AND COILED ABOUT SAID DRUM WITH THE SEAM FACING OUTWARDLY, WHEREBY SAID TUBE IS TEMPORARILY OPENED FLAT WHILE COILED; AND THE FLATTENED WIDTH OF SAID TUBE BEING GREATER THAN THE DISTANCE BETWEEN THE RIMS OF SAID DISCS, WHEREBY UPON RELEASE OF SAID REEL, SAID TUBE WILL UNCOIL FROM SAID DRUM AND PROJECT THROUGH SAID GUIDE IN A STRAIGHT LINE, REFORMING INTO A TUBULAR SHAPE.
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) | 1967-08-11 | 1968-02-10 | 1968-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-11 | 1972-02-10 | 1972-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-11 | 1976-02-10 | 1976-08-11 | $7700.00 | Window Closed / Lapsed |