US3739330A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Geophone assembly
Assignee: Shawcor Ltd
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Filing: 1970-07-08
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Granted: 1973-06-12
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Expires: 1990-07-08
Abstract
Abstract A geophone is enclosed by a case of nonconductive material to provide a geophone assembly for connecting into an external electrical circuit. An opening is provided in the case in which an electrical contact or probe can be located to make electrical contact with the internal circuit of the geophone by engaging a component of the circuit, such as a terminal external of the geophone housing or the housing itself, which may become part of the internal circuit when the geophone is lying on its side. This allows the internal circuit of an individual geophone to be tested without removing the case from the geophone. Means are provided for closing the opening.
Inventors
- 👤 G Hazelhurst
- 👤 D Fussell
- 👤 H Guyton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:18
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/16; G01V1/18; G01V1/181
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
154 words
A geophone assembly comprising a geophone including electrical circuit means and a housing for the electrical circuit means, said circuit means including terminal means exposed externally of the housing for connecting the electrical circuit means of the geophone into an external electrical circuit, a case of non-conductive material for enclosing the geophone, said case having an opening in which an electrical contact can be positioned to make electrical contact with the electrical circuit means of the geophone, and means sealing said opening, comprising a member of electrically conductive material extending through the opening, and positioned for movement into electrical contact with the electrical circuit of the geophone, spring means urging the member out of the opening, stop means limiting the distance the spring means can urge the member out of the opening, and seal means for closing the opening when the stop means are limiting the travel of the member out of the opening.
Claim 2
Dependent Claim
154 words
A geophone assembly comprising a geophone including electrical circuit means and a housing for the electrical circuit means, said circuit means including terminal means exposed externally of the housing for connecting the electrical circuit means of the geophone into an external electrical circuit, a case of non-conductive material for enclosing the geophone, said case having an opening in which an electrical contact can be positioned to make electrical contact with the electrical circuit means of the geophone, and means sealing said opening, comprising a member of electrically conductive material extending through the opening, and positioned for movement into electrical contact with the electrical circuit of the geophone, spring means urging the member out of the opening, stop means limiting the distance the spring means can urge the member out of the opening, and seal means for closing the opening when the stop means are limiting the travel of the member out of the opening.
Claim 3
Dependent Claim
108 words
A geophone assembly comprising a geophone including electrical circuit means and a housing for the electrical circuit means that is made of electrically conductive material and is in the electric circuit means of the geophone when the geophone is placed in a given position, said circuit means including terminal means exposed externally of the housing for connecting the electrical circuit means of the geophone into an external electrical circuit, a case of non-conductive material for enclosing the geophone, said case having an opening in which an electrical contact can be positioned to make electrical contact with the electrical circuit means of the geophone, and means sealing said opening.
Claim 4
Dependent Claim
108 words
A geophone assembly comprising a geophone including electrical circuit means and a housing for the electrical circuit means that is made of electrically conductive material and is in the electric circuit means of the geophone when the geophone is placed in a given position, said circuit means including terminal means exposed externally of the housing for connecting the electrical circuit means of the geophone into an external electrical circuit, a case of non-conductive material for enclosing the geophone, said case having an opening in which an electrical contact can be positioned to make electrical contact with the electrical circuit means of the geophone, and means sealing said opening.
Claim 5
Dependent Claim
27 words
The geophone of claim 2 in which the means sealing the opening comprises a body of electrically conductive material that is in electrical contact with the housing.
Claim 6
Dependent Claim
100 words
A geophone assembly comprising a geophone including electrical circuit means and a housing for the electric circuit means of electrically conductive material that is in the electric circuit of the geophone when the geophone is placed in a given position, terminal means exposed externally of the housing for connecting the electrical circuit means of the geophone into an external electrical circuit, a case of nonconductive material for enclosing the geophone, said case having an opening in which an electrical contact can be positioned to make electrical contact with the electrical circuit means of the geophone, and means sealing said opening.
Claim 7
Dependent Claim
100 words
A geophone assembly comprising a geophone including electrical circuit means and a housing for the electric circuit means of electrically conductive material that is in the electric circuit of the geophone when the geophone is placed in a given position, terminal means exposed externally of the housing for connecting the electrical circuit means of the geophone into an external electrical circuit, a case of nonconductive material for enclosing the geophone, said case having an opening in which an electrical contact can be positioned to make electrical contact with the electrical circuit means of the geophone, and means sealing said opening.
Claim 8
Dependent Claim
47 words
The geophone assembly of claim 4 in which said means sealing the opening in the case comprises a plug of elastomeric material through which a needle-like probe can be inserted to contact the housing and withdrawn without destroying the ability of the plug to seal the opening.
Claim 9
Dependent Claim
22 words
The geophone of claim 5 in which the opening is positioned for the needle-like probe to contact a terminal of the geophone.
Claim 10
Dependent Claim
28 words
The geophone of claim 4 in which said means sealing the opening comprises a body of elEctrically conductive material that is in electrical contact with the geophone housing.
Claim 11
Dependent Claim
42 words
The geophone assembly of claim 4 in which the means sealing the opening comprises a member that can be removed to allow the insertion of an electrical contact through the opening into electrical contact with the housing or terminal of the geophone.
Claim 12
Dependent Claim
81 words
The geophone assembly of claim 4 in which the means sealing the opening comprises a member of electrically conductive material extending through the opening, and positioned for movement into electrical contact with the housing, spring means urging the member out of the opening, stop means limiting the distance the spring means can urge the member out of the opening, and seal means for closing the opening when the stop means are limiting the travel of the member out of the opening.
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) | 1976-06-11 | 1976-12-11 | 1977-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-11 | 1980-12-11 | 1981-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-11 | 1984-12-11 | 1985-06-12 | $7700.00 | Window Closed / Lapsed |