Patent US4056166A successfully refreshed from Google Patents.
Patent US3103643A successfully refreshed from Google Patents.
US3103643A
Expired / Lapsed
US
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Drill pipe module transmitter transducer
Assignee: Individual
•
Filing: 1960-06-29
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Granted: 1963-09-10
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Expires: 1980-06-29
Abstract
No abstract record available.
Inventors
- 👤 David C Kalbfell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:53
CPC Classifications
E; E21; E21B; E21B47/00; E21B47/12; E21B47/14; E21B47/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
A DRILL PIPE MODULE TRANSMITTER TRANSDUCER COMPRISING, IN COMBINATION, TWO SECTIONS OF DRILL PIPE DISPOSED END TO END, A MECHANICALLY STRONG AND ELASTIC COMPLIANT GAP CONNECTION BETWEEN SAID SECTIONS WHICH AFFORDS STRUCTURAL INTEGRITY TO THE CONNECTED SECTIONS WHILE ALSO RENDERING THE SAME ACOUSTICALLY COMPLIANT AT THE TRANSMISSION FREQUENCIES OF INTEREST, AND AN ELECTROVIBRATORY MEMBER WHICH BRIDGES THE COMPLIANT GAP CONNECTION BETWEEN SAID PIPE SECTIONS AND CONNECTS RIGIDLY ACOUSTICALLY TO SAID SECTIONS ON EACH SIDE OF SAID GAP CONNECTIONS.
Claim 2
Dependent Claim
78 words
A DRILL PIPE MODULE TRANSMITTER TRANSDUCER COMPRISING, IN COMBINATION, TWO SECTIONS OF DRILL PIPE DISPOSED END TO END, A MECHANICALLY STRONG AND ELASTIC COMPLIANT GAP CONNECTION BETWEEN SAID SECTIONS WHICH AFFORDS STRUCTURAL INTEGRITY TO THE CONNECTED SECTIONS WHILE ALSO RENDERING THE SAME ACOUSTICALLY COMPLIANT AT THE TRANSMISSION FREQUENCIES OF INTEREST, AND AN ELECTROVIBRATORY MEMBER WHICH BRIDGES THE COMPLIANT GAP CONNECTION BETWEEN SAID PIPE SECTIONS AND CONNECTS RIGIDLY ACOUSTICALLY TO SAID SECTIONS ON EACH SIDE OF SAID GAP CONNECTIONS.
References Cited (Backward Citations)
US2810546A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-09-09 | 1967-03-11 | 1967-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-09 | 1971-03-11 | 1971-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-09 | 1975-03-11 | 1975-09-10 | $7700.00 | Window Closed / Lapsed |