US3313115A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for laying flexible pipe with attached risers
Assignee: Individual
•
Filing: 1965-04-23
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Granted: 1967-04-11
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Expires: 1985-04-23
Abstract
No abstract record available.
Inventors
- 👤 Joseph A Kniefel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:33
CPC Classifications
F; F16; F16L; F16L1/00; F16L1/024; F16L1/028; F16L1/032; E; E02; E02F; E02F5/00; E02F5/02; E02F5/10; E02F5/102
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
A MACHINE FOR LAYING FLEXIBLE PIPE WITH ATTACHED RISERS, COMPRISING: A TRENCHING UNIT HAVING MEANS FOR ATTACHMENT TO A TOWING VEHICLE; SAID TRENCHING UNIT HAVING A FRONT GROUP PENETRATING CUTTER WITH SIDE PLATES FIXED TO AND EXTENDING REARWARDLY THEREFROM, SAID SIDE PLATES BEING INTERCONNECTED IN SPACED PARALLEL RELATION; PIPE GUIDING MEANS IN SAID TRENCHING UNIT, INCLUDING FINGERS PIVOTALLY MOUNTED ON SAID SIDE PLATES TO SWING ACROSS THE SPACE BETWEEN THE SIDE PLATES ABOVE A PIPE PASSING THERETHROUGH; SAID FINGERS BEING INTERCONNECTED IN PAIRS OF SWING IN OPPOSITE DIRECTIONS, WHEREBY ONE FINGER OF EACH PAIR IS EXTENDED BETWEEN THE SIDE PLATES WHEN THE OTHER FINGER OF THAT PAIR IS SWUNG BACK BY PASSAGE OF A RISER ON THE PIPE.
Claim 2
Dependent Claim
118 words
A MACHINE FOR LAYING FLEXIBLE PIPE WITH ATTACHED RISERS, COMPRISING: A TRENCHING UNIT HAVING MEANS FOR ATTACHMENT TO A TOWING VEHICLE; SAID TRENCHING UNIT HAVING A FRONT GROUP PENETRATING CUTTER WITH SIDE PLATES FIXED TO AND EXTENDING REARWARDLY THEREFROM, SAID SIDE PLATES BEING INTERCONNECTED IN SPACED PARALLEL RELATION; PIPE GUIDING MEANS IN SAID TRENCHING UNIT, INCLUDING FINGERS PIVOTALLY MOUNTED ON SAID SIDE PLATES TO SWING ACROSS THE SPACE BETWEEN THE SIDE PLATES ABOVE A PIPE PASSING THERETHROUGH; SAID FINGERS BEING INTERCONNECTED IN PAIRS OF SWING IN OPPOSITE DIRECTIONS, WHEREBY ONE FINGER OF EACH PAIR IS EXTENDED BETWEEN THE SIDE PLATES WHEN THE OTHER FINGER OF THAT PAIR IS SWUNG BACK BY PASSAGE OF A RISER ON 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) | 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 |