US3664688A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Irrigation towline assembly
Assignee: Individual
•
Filing: 1970-07-06
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Granted: 1972-05-23
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Expires: 1990-07-06
Abstract
Abstract AN IRRIGATION TOWLINE ASSEMBLY INCLUDING A PAIR OF WATER PIPES RELEASABLY JOINED END TO END BY A SEALED COUPLING HAVING SLIDABLY INTERFITTING PARTS WITH COACTING THRUST SHOULDDERS WHICH PERMIT LIMITED RELATIVE AXIAL MOVEMENT OF THE PARTS, A COUPLER SKID HAVING A CLAMP AT ONE END FIRMLY CLAMPING ONE PIPE TO THE SKID, AND COATING LUGS ON THE OTHER PIPE AND SKID WHICH ENGAGE TO FIRMLY ANCHOR THE PIPE TO THE SKID AS A RESULT OF LIMITED AXIAL SEPARATION MOVEMENT OF THE LATTER PIPE RELATIVE TO THE CLAMPED PIPE WHEN A TOWING FORCE IS APPLIED TO THE TOWLINE. THE LUGS ARE DISENGAGED TO PERMIT UNCOUPLING OF THE PIPES BY RELATIVE AXIAL MOVEMENT OF THE PIPES TOWARD ONE ANOTHER.
Inventors
- 👤 Wells D De Loach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:21
CPC Classifications
F; F16; F16L; F16L37/00; F16L37/50; F16L37/54; F16L1/00; F16L1/024; F16L1/0243
Claims Analysis
Total Claims: 0
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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) | 1975-05-23 | 1975-11-22 | 1976-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-23 | 1979-11-22 | 1980-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-23 | 1983-11-22 | 1984-05-23 | $7700.00 | Window Closed / Lapsed |