US4409551A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Telluric survey electrode
Assignee: Mobil Oil AS
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Filing: 1980-08-11
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Granted: 1983-10-11
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Expires: 2000-08-11
Abstract
Abstract An electrode for use in telluric electrical energy measurements is disclosed which has the property of easy, rapid installation and retrieval while maintaining electrical stability. The electrode is durable and much more easily stored than prior art telluric electrical survey electrodes.
Inventors
- 👤 Lonnie J. Norton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:25
CPC Classifications
G; G01; G01V; G01V3/00; G01V3/08; G01V3/082
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
84 words
A telluric survey electrode for temporary ground insertion comprising: elongated-housing constructed of an electrically conductive metal; insulating means within said housing for fortifying said housing; connector means soldered to one end of said elongated housing for removal of said survey electrode from the ground and for providing an electrical path to and from said electrode; and sealing means at each end of said housing having at least one end soldered for providing a generally smooth airtight barrier between said connector means and outside ambiance.
Claim 2
Dependent Claim
84 words
A telluric survey electrode for temporary ground insertion comprising: elongated-housing constructed of an electrically conductive metal; insulating means within said housing for fortifying said housing; connector means soldered to one end of said elongated housing for removal of said survey electrode from the ground and for providing an electrical path to and from said electrode; and sealing means at each end of said housing having at least one end soldered for providing a generally smooth airtight barrier between said connector means and outside ambiance.
Claim 3
Dependent Claim
18 words
The telluric survey electrode according to claim 1 wherein said connector means comprises a heavy gauge electrical wire.
Claim 4
Dependent Claim
15 words
The telluric survey electrode according to claim 2 when said sealing means comprises metallic solder.
Claim 5
Dependent Claim
23 words
The telluric survey electrode according to claim 2 when said sealing means comprises molten lead cooled to form a seal with said housing.
Claim 6
Dependent Claim
28 words
The telluric survey electrode according to claim 1 where said sealing means comprises molten lead added to folded over ends of said housing to form a smooth surface.
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) | 1986-10-10 | 1987-04-11 | 1987-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-10-10 | 1991-04-11 | 1991-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-10-10 | 1995-04-11 | 1995-10-11 | $7700.00 | Window Closed / Lapsed |