US4245329A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Elongated seismic receiver of continuous structure
Assignee: IFP Energies nouvelles
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Filing: 1977-09-02
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Granted: 1981-01-13
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Expires: 1997-09-02
Abstract
Abstract Elongated receiver of continuous structure for seismic prospecting comprising at least one sensitive assembly having two electrically conducting electrodes on both sides of a deformable element subjected to a permanent electric polarization and an electrically insulating compressible element between the deformable element and one of the electrodes. When used for prospecting on the earth the receiver further comprises masses of heavy material secured to one face of the sensitive assembly.
Inventors
- 👤 Jean-Claude Dubois
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:31
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/16; G01V1/20; G01V1/201; G01V1/208; B; B06; B06B; B06B1/00; B06B1/02; B06B1/0292
Claims Analysis
Total Claims: 62
Claim 1
Independent Claim
75 words
A receiver of continuous structure for seismic prospecting comprising at least one pair of sensitive elements, each of said sensitive elements including two electrodes, made of a conducting material, placed at opposite sides of a deformable element subjected to a permanent electric polarization and at least one adjacent electrically insulating compressible element, and said pair of sensitive elements being separated by an insulating element, the respective electrodes of the sensitive elements being at opposite polarities.
Claim 2
Dependent Claim
75 words
A receiver of continuous structure for seismic prospecting comprising at least one pair of sensitive elements, each of said sensitive elements including two electrodes, made of a conducting material, placed at opposite sides of a deformable element subjected to a permanent electric polarization and at least one adjacent electrically insulating compressible element, and said pair of sensitive elements being separated by an insulating element, the respective electrodes of the sensitive elements being at opposite polarities.
Claim 3
Dependent Claim
76 words
A receiver of continuous structure for seismic prospecting comprising at least one pair of sensitive elements, each of said sensitive elements including two electrodes, made of a conducting mateial, placed at opposite sides of a deformable element subjected to a permanent electric polarization and at least one adjacent insulating compressible element, and each sensitive element having a cylindrical shape, both elements of one pair being wound in helices of opposite directions around an insulating central core.
Claim 4
Dependent Claim
76 words
A receiver of continuous structure for seismic prospecting comprising at least one pair of sensitive elements, each of said sensitive elements including two electrodes, made of a conducting mateial, placed at opposite sides of a deformable element subjected to a permanent electric polarization and at least one adjacent insulating compressible element, and each sensitive element having a cylindrical shape, both elements of one pair being wound in helices of opposite directions around an insulating central core.
Claim 5
Dependent Claim
60 words
A receiver of continuous structure for seismic prospecting comprising at least one sensitive element including two electrodes, made of a conducting material, placed at opposite sides of a deformable element subjected to a permanent electric polarization and at least one adjacent electrically insulating compressible element, in which the sensitive element is narrower at its end parts than at its center.
Claim 6
Dependent Claim
60 words
A receiver of continuous structure for seismic prospecting comprising at least one sensitive element including two electrodes, made of a conducting material, placed at opposite sides of a deformable element subjected to a permanent electric polarization and at least one adjacent electrically insulating compressible element, in which the sensitive element is narrower at its end parts than at its center.
Claim 7
Dependent Claim
95 words
A receiver of continuous structure for seismic prospecting comprising at least one sensitive element including two electrodes, made of a conducting material, placed at opposite sides of a deformable element subjected to a permanent electric polarization and at least one adjacent electrically insulating compressible element, said sensitive element having a cylindrical shape in which at least one sensitive element is wound helically around a central core of great length, made of a flexible and electrically insulated material, the winding pitch of the assembly being smaller at the center than at the ends of the receiver.
Claim 8
Dependent Claim
95 words
A receiver of continuous structure for seismic prospecting comprising at least one sensitive element including two electrodes, made of a conducting material, placed at opposite sides of a deformable element subjected to a permanent electric polarization and at least one adjacent electrically insulating compressible element, said sensitive element having a cylindrical shape in which at least one sensitive element is wound helically around a central core of great length, made of a flexible and electrically insulated material, the winding pitch of the assembly being smaller at the center than at the ends of the receiver.
Claim 9
Dependent Claim
54 words
A pressure transducer for underwater seismic prospecting comprising at least one sensitive element including two electrodes of a conducting material disposed at opposite sides of a deformable member having a permanent electric polarization which is adjacent to at least one electrically insulating member capable of undergoing substantial volume reduction in response to pressure stresses.
Claim 10
Dependent Claim
54 words
A pressure transducer for underwater seismic prospecting comprising at least one sensitive element including two electrodes of a conducting material disposed at opposite sides of a deformable member having a permanent electric polarization which is adjacent to at least one electrically insulating member capable of undergoing substantial volume reduction in response to pressure stresses.
Claim 11
Dependent Claim
48 words
A pressure transducer comprising several sensitive elements, each including two electrodes of a conducting material disposed at opposite sides of a deformable member having a permanent electric polarization which is adjacent to at least one electrically insulating compressible member, wherein said sensitive elements are superimposed and electrically interconnected.
Claim 12
Dependent Claim
48 words
A pressure transducer comprising several sensitive elements, each including two electrodes of a conducting material disposed at opposite sides of a deformable member having a permanent electric polarization which is adjacent to at least one electrically insulating compressible member, wherein said sensitive elements are superimposed and electrically interconnected.
Claim 13
Dependent Claim
66 words
A pressure transducer comprising at least one sensitive element including two electrodes of a conducting material disposed at opposite sides of a deformable member having a permanent electric polarization which is adjacent to at least one electrically insulating compressible member, further comprising at least one pair of said sensitive elements, rigidly connected to a flexible support, the respective electrodes of both elements having the same polarities.
Claim 14
Dependent Claim
66 words
A pressure transducer comprising at least one sensitive element including two electrodes of a conducting material disposed at opposite sides of a deformable member having a permanent electric polarization which is adjacent to at least one electrically insulating compressible member, further comprising at least one pair of said sensitive elements, rigidly connected to a flexible support, the respective electrodes of both elements having the same polarities.
Claim 15
Dependent Claim
15 words
A pressure transducer according to claim 6, wherein the sensitive elements have a cylindrical shape.
Claim 16
Dependent Claim
55 words
A pressure transducer comprising at least one sensitive element including two electrodes of a conducting material disposed at opposite sides of a deformable member having a permanent electric polarization which is adjacent to at least one electrically insulating compressible member, wherein the sensitive element is covered with a sheet of flexible and electrically insulating material.
Claim 17
Dependent Claim
55 words
A pressure transducer comprising at least one sensitive element including two electrodes of a conducting material disposed at opposite sides of a deformable member having a permanent electric polarization which is adjacent to at least one electrically insulating compressible member, wherein the sensitive element is covered with a sheet of flexible and electrically insulating material.
Claim 18
Dependent Claim
57 words
A pressure transducer comprising at least two sensitive elements having a great length as compared with the larger size of the cross-section thereof, each sensitive element including two electrodes of a conducting material disposed at opposite sides of a deformable member having a permanent electric polarization which is adjacent to at least one electrically insulating compressible member.
Claim 19
Dependent Claim
57 words
A pressure transducer comprising at least two sensitive elements having a great length as compared with the larger size of the cross-section thereof, each sensitive element including two electrodes of a conducting material disposed at opposite sides of a deformable member having a permanent electric polarization which is adjacent to at least one electrically insulating compressible member.
Claim 20
Dependent Claim
22 words
A transducer according to claim 10, wherein the sensitive elements are associated to masses of heavy material, secured to one face thereof.
Claim 21
Dependent Claim
42 words
A pressure transducer comprising at least one sensitive element including two electrodes of a conducting material disposed at opposite sides of a deformable member having a permanent electric polarization which is adjacent to a flexible sheet of elastic material provided with recesses.
Claim 22
Dependent Claim
42 words
A pressure transducer comprising at least one sensitive element including two electrodes of a conducting material disposed at opposite sides of a deformable member having a permanent electric polarization which is adjacent to a flexible sheet of elastic material provided with recesses.
Claim 23
Dependent Claim
17 words
A pressure transducer according to claim 12, wherein said recesses are perforations extending through said flexible sheet.
Claim 24
Dependent Claim
40 words
A pressure transducer comprising at least one sensitive element including two electrodes of a conducting material disposed at opposite sides of a deformable member having a permanent electric polarization which is adjacent to a flexible sheet made of woven material.
Claim 25
Dependent Claim
40 words
A pressure transducer comprising at least one sensitive element including two electrodes of a conducting material disposed at opposite sides of a deformable member having a permanent electric polarization which is adjacent to a flexible sheet made of woven material.
Claim 26
Dependent Claim
64 words
A pressure transducer comprising at least one pair of sensitive elements, each provided with two electrodes of a conducting material disposed at opposite sides of a deformable member having a permanent electric polarization which is adjacent to at least one electrically insulating compressible member, the sensitive elements being separated by an insulating member, the respective electrodes of said sensitive elements being at opposite polarities.
Claim 27
Dependent Claim
64 words
A pressure transducer comprising at least one pair of sensitive elements, each provided with two electrodes of a conducting material disposed at opposite sides of a deformable member having a permanent electric polarization which is adjacent to at least one electrically insulating compressible member, the sensitive elements being separated by an insulating member, the respective electrodes of said sensitive elements being at opposite polarities.
Claim 28
Dependent Claim
61 words
A pressure transducer comprising at least one sensitive element including two electrodes of a conducting material disposed at opposite sides of a deformable member having a permanent electric polarization which is adjacent to at least one electrically insulating compressible member, said sensitive element being helically wound around a central core of great length, made of a flexible and electrically insulating material.
Claim 29
Dependent Claim
61 words
A pressure transducer comprising at least one sensitive element including two electrodes of a conducting material disposed at opposite sides of a deformable member having a permanent electric polarization which is adjacent to at least one electrically insulating compressible member, said sensitive element being helically wound around a central core of great length, made of a flexible and electrically insulating material.
Claim 30
Dependent Claim
58 words
A pressure transducer comprising at least one sensitive element including a first electrode which is a cylindrical core of conducting material, a deformable member having a permanent electric polarization which is adjacent to at least one electrically insulating compressible member, and a second electrode, both electrodes sandwiching the assembly of the deformable member and of the compressible member.
Claim 31
Dependent Claim
58 words
A pressure transducer comprising at least one sensitive element including a first electrode which is a cylindrical core of conducting material, a deformable member having a permanent electric polarization which is adjacent to at least one electrically insulating compressible member, and a second electrode, both electrodes sandwiching the assembly of the deformable member and of the compressible member.
Claim 32
Dependent Claim
61 words
A pressure transducer comprising at least one pair of sensitive elements including two electrodes of a conducting material disposed at opposite sides of a deformable member having a permanent electric polarization which is adjacent to at least one electrically insulating compressible member, both elements of the pair being helically wound in helices of opposite directions around an electrically insulating central core.
Claim 33
Dependent Claim
61 words
A pressure transducer comprising at least one pair of sensitive elements including two electrodes of a conducting material disposed at opposite sides of a deformable member having a permanent electric polarization which is adjacent to at least one electrically insulating compressible member, both elements of the pair being helically wound in helices of opposite directions around an electrically insulating central core.
Claim 34
Dependent Claim
55 words
A pressure transducer comprising at least one sensitive element including two electrodes of a conducting material disposed at opposite sides of a deformable member having a permanent electric polarization which is adjacent to at least one electrically insulating compressible member, the sensitive element being narrower at its end portions than at the central portion thereof.
Claim 35
Dependent Claim
55 words
A pressure transducer comprising at least one sensitive element including two electrodes of a conducting material disposed at opposite sides of a deformable member having a permanent electric polarization which is adjacent to at least one electrically insulating compressible member, the sensitive element being narrower at its end portions than at the central portion thereof.
Claim 36
Dependent Claim
82 words
A pressure transducer comprising at least one sensitive element including two electrodes of a conducting material disposed at opposite sides of a deformable member having a permanent electric polarization which is adjacent to at least one electrically insulating compressible member, said sensitive element being helically wound around a central core of great length, made of a flexible and electrically insulated material, the winding pitch of the sensitive element being smaller at the central portion than at the end portions of the transducer.
Claim 37
Dependent Claim
82 words
A pressure transducer comprising at least one sensitive element including two electrodes of a conducting material disposed at opposite sides of a deformable member having a permanent electric polarization which is adjacent to at least one electrically insulating compressible member, said sensitive element being helically wound around a central core of great length, made of a flexible and electrically insulated material, the winding pitch of the sensitive element being smaller at the central portion than at the end portions of the transducer.
Claim 38
Dependent Claim
79 words
Transducing device comprising at least one sensitive element including a first supporting electrode made of a flexible and locally rigid plate and a second electrode, said first and second electrodes being placed at opposite sides of a deformable element having a permanent electric polarization and an adjacent electrically insulating compressible element, said compressible element being capable of undergoing a substantial volume reduction in response to stresses, and said deformable element being placed in contact with said first supporting electrode.
Claim 39
Dependent Claim
79 words
Transducing device comprising at least one sensitive element including a first supporting electrode made of a flexible and locally rigid plate and a second electrode, said first and second electrodes being placed at opposite sides of a deformable element having a permanent electric polarization and an adjacent electrically insulating compressible element, said compressible element being capable of undergoing a substantial volume reduction in response to stresses, and said deformable element being placed in contact with said first supporting electrode.
Claim 40
Dependent Claim
15 words
A transducing device according to claim 21, in which the second electrode is entirely metallic.
Claim 41
Dependent Claim
32 words
A transducing device according to claim 21, in which the second electrode consists of a metal deposit on one of the faces of a strip of small thickness made of plastic material.
Claim 42
Dependent Claim
23 words
A transducing device according to claim 21, in which the compressible element consists of a strip made of rigid and regularly punched material.
Claim 43
Dependent Claim
20 words
A transducing device according to claim 21, in which the compressible element consists of a strip having a lattice structure.
Claim 44
Dependent Claim
15 words
A transducing device according to claim 21, in which several sensitive elements are electrically interconnected.
Claim 45
Dependent Claim
21 words
A transducing device according to claim 21, in which at least one sensitive element is helically wound around a central core.
Claim 46
Dependent Claim
20 words
A transducing device according to claim 21, wherein said sensitive element is enclosed by a flexible and electrically insulating material.
Claim 47
Dependent Claim
16 words
A transducing device according to claim 21, wherein several sensitive elements are superimposed and electrically interconnected.
Claim 48
Dependent Claim
31 words
A tranducing device according to claim 21, wherein a pair of said sensitive elements are separated by an insulating element, and respective electrodes of said sensitive elements are at opposite polarities.
Claim 49
Dependent Claim
31 words
A transducing device according to claim 21, wherein a pair of said sensitive elements are connected by a flexible support, and respective electrodes of said sensitive elements have the same polarity.
Claim 50
Dependent Claim
15 words
A transducing device according to claim 31, wherein said sensitive elements have a curved shape.
Claim 51
Dependent Claim
15 words
A transducing device according to claim 31, wherein said sensitive elements are connected in series.
Claim 52
Dependent Claim
15 words
A transducing device according to claim 31, wherein said sensitive elements are connected in parallel.
Claim 53
Dependent Claim
25 words
A transducing device according to claim 21, wherein said sensitive element is cylindrical, and is disposed on a central core of a flexible insulating material.
Claim 54
Dependent Claim
37 words
A tranducing device according to claim 21, wherein said first supporting electrode is a cylindrical core of conducting material, and said deformable element, said compressible element and said second electrode are helically wound around said cylindrical core.
Claim 55
Dependent Claim
28 words
A transducing device according to claim 21, wherein a pair of said sensitive elements are helically wound in helices of opposite directions around an electrically insulating central core.
Claim 56
Dependent Claim
21 words
A transducing device according to claim 21, wherein masses of heavy material are secured to one surface of said sensitive element.
Claim 57
Dependent Claim
21 words
A transducing device according to claim 21, wherein said sensitive element is narrower at end portions than at the central portion.
Claim 58
Dependent Claim
38 words
A transducing device according to claim 21, wherein said sensitive element is helically wound aroud a flexible and insulating central core of great length at a winding pitch smaller at the center than the ends of said core.
Claim 59
Dependent Claim
51 words
A transducing device comprising at least one sensitive element including two electrodes placed at opposite sides of a deformable element having a permanent electric polarization, one of said two electrodes being an incompressible and imperforate supporting metal plate provided with inequalities regularly distributed on the surface thereof facing the deformable element.
Claim 60
Dependent Claim
51 words
A transducing device comprising at least one sensitive element including two electrodes placed at opposite sides of a deformable element having a permanent electric polarization, one of said two electrodes being an incompressible and imperforate supporting metal plate provided with inequalities regularly distributed on the surface thereof facing the deformable element.
Claim 61
Dependent Claim
28 words
A transducing device according to claim 28, in which the inequalities on the surface are formed by a material deposited on a flat strip of the metal plate.
Claim 62
Dependent Claim
33 words
A transducing device according to claim 28, in which the electrode having inequalities on the surface consists of a flat strip of the metal plate whose surface facing the deformable element is engraved.
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) | 1984-01-13 | 1984-07-14 | 1985-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-01-13 | 1988-07-14 | 1989-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-01-13 | 1992-07-14 | 1993-01-13 | $7700.00 | Window Closed / Lapsed |