US3781778A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Marine streamer cable
Assignee: Schlumberger Technology Corp
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Filing: 1972-04-19
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Granted: 1973-12-25
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Expires: 1992-04-19
Abstract
Abstract In accordance with an illustrative embodiment of the present invention, a marine streamer cable of layered solid construction includes a cable core with a stress member and electrical conductors extending eccentrically within a tubular flotation body. Seismic transducer assemblies are provided at spaced points along the cable with each assembly including a rigid case construction that houses a disc-type hydrophone to the side of the core and within the circumferential outline of the flotation body.
Inventors
- 👤 F Sawin
- 👤 W Whitfill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:57
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/16; G01V1/20; G01V1/201
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
31 words
The marine streamer cable of claim 1 wherein said case means further includes a saddle portion underneath said housing portiOn, said saddle portion being arranged to fit against said cable core.
Claim 2
Dependent Claim
50 words
The marine streamer cable of claim 2 wherein said housing portion has a curved outer periphery formed on substantially the same diameter as the diameter of said flotation body, said saddle portion having a curved inner periphery formed on substantially the same diameter as the diameter of said cable core.
Claim 3
Dependent Claim
40 words
The marine streamer cable of claim 3 wherein said housing portion is provided with an aperture opening into said recess and arranged for taking out the leads of an acoustic energy transducer to enable their connection to said electrical conductors.
Claim 4
Dependent Claim
106 words
A marine streamer cable comprising: a flotation body having a longitudinal axis; a cable core including a stress member with electrical conductors therealong, said cable core being disposed within said flotation body eccentrically with respect to said longitudinal axis; and rigid case means for housing an acoustic energy transducer to the side of said cable core and within the circumferential outline of said flotation body, said case means including a first recessed portion and a second recessed portion, said first recessed portion being adapted for receiving said transducer, said second recessed portion being shaped and arranged to fit against an external surface of said cable core.
Claim 5
Dependent Claim
27 words
The marine cable of claim 5 wherein said first recessed portion has a curved outer peripheral surface formed on substantially the same diameter as said flotation body.
Claim 6
Dependent Claim
28 words
The marine streamer cable of claim 6 wherein said second recessed portion has a curved inner peripheral surface formed on substantially the same diameter as said cable core.
Claim 7
Dependent Claim
40 words
The marine streamer cable of claim 7 wherein said inner peripheral surface is formed in part within end sections of said second recessed portion, said end sections extending along said cable core to either side of said first recessed portion.
Claim 8
Dependent Claim
39 words
The marine streamer cable of claim 5 further including means in said first recessed portion for encapsulating said transducer, said encapsulating means having an impedance to the transmission of acoustic wave energy substantially matched to that of sea water.
Claim 9
Dependent Claim
17 words
The marine streamer cable of claim 9 further including an outer protective sheath around said flotation body.
Claim 10
Dependent Claim
33 words
The marine streamer cable of claim 9 further including a relatively thin-walled, flexible sheath applied to said outer peripheral surface of said first recessed portion to enclose said encapsulating means and said transducer.
Claim 11
Dependent Claim
17 words
The marine streamer cable of claim 9 wherein said encapsulating means is a dielectric gel potting material.
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) | 1976-12-24 | 1977-06-25 | 1977-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-24 | 1981-06-25 | 1981-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-24 | 1985-06-25 | 1985-12-25 | $7700.00 | Window Closed / Lapsed |