Patent US5293387A successfully refreshed from Google Patents.
Patent US3835707A successfully refreshed from Google Patents.
US3835707A
Expired / Lapsed
US
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Device for surveying the configuration of an immersed pipe during its laying
Assignee: Saipem SpA
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Filing: 1972-11-10
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Granted: 1974-09-17
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Expires: 1992-11-10
Abstract
Abstract An apparatus for surveying the configuration of a submarine pipeline during its laying including a carriage carrying depth sensing and distance sensing means and adapted to be rolled along the pipe between the pipe laying ship and the bottom of the body of water. Depth and distance are simultaneously recorded.
Inventors
- 👤 G Rosa
- 👤 A Canepa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:33
CPC Classifications
F; F16; F16L; F16L1/00; F16L1/12; F16L1/20; F16L1/235
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
137 words
Device for surveying the configuration of a pipe during its laying, comprising: a structure surrounding the pipe and sliding along said pipe with a controlled speed; an instrument fixed to said structure for measuring the depth of said pipe; a friction wheel fixed to said structure and in frictional engagement with said pipe, signal means connected to said friction wheel for transmitting a signal proportional to the distance traveled by said friction wheel along said pipe; means for recording the depth measured by said instrument and the signals transmitted by said friction wheel; means for transmitting the depth measurement from said instrument and the signals from said friction wheel to said recording means; means for automatically stopping said structure; and, means for recovering said structure and for adjusting the sliding speed of said structure along said pipe.
Claim 2
Dependent Claim
137 words
Device for surveying the configuration of a pipe during its laying, comprising: a structure surrounding the pipe and sliding along said pipe with a controlled speed; an instrument fixed to said structure for measuring the depth of said pipe; a friction wheel fixed to said structure and in frictional engagement with said pipe, signal means connected to said friction wheel for transmitting a signal proportional to the distance traveled by said friction wheel along said pipe; means for recording the depth measured by said instrument and the signals transmitted by said friction wheel; means for transmitting the depth measurement from said instrument and the signals from said friction wheel to said recording means; means for automatically stopping said structure; and, means for recovering said structure and for adjusting the sliding speed of said structure along said pipe.
Claim 3
Dependent Claim
27 words
Device according to claim 1, wherein the means for recovering said structure and for adjusting the sliding speed is a winch and cable connected to said structure.
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) | 1977-09-16 | 1978-03-18 | 1978-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-16 | 1982-03-18 | 1982-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-16 | 1986-03-18 | 1986-09-17 | $7700.00 | Window Closed / Lapsed |