US3124882A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Black
Assignee: —
•
Filing: —
•
Granted: 1964-03-17
•
Expires: 1981-03-17
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:12
CPC Classifications
E; E21; E21B; E21B47/00; E21B47/02; E21B47/022
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
A BORE HOLE INCLINATION RECORDER FOR USE IN A DRILL STRING, SAID RECORDER COMPRISING: A SEALED CAPSULE WITHIN SAID DRILL STRING, AN INCLINATION RESPONSIVE SWITCH WITHIN SAID CAPSULE, SAID SWITCH HAVING MULTIPLE CONTACTS AND MEANS CLOSING ONE OR MORE OF SAID CONTACTS ACCORDING TO THE INCLINATION THEREOF, A PRINTING BAR WITHIN SAID CAPSULE, SAID PRINTING BAR HAVING MULTIPLE SPACED CONTACTS ON ITS SURFACE, AN ELECTRICAL CIRCUIT INDIVIDUALLY CONNECTING THE CONTACTS OF SAID SWITCH WITH THE CONTACTS OF SAID PRINTING BAR AND WITH A POWER SOURCE, A NORMALLY OPEN SWITCH IN SAID ELECTRICAL CIRCUIT, A MOVABLE SHEET OF ELECTRO-SENSITIVE MATERIAL ADJACENT THE CONTACTS OF SAID PRINTING BAR, PISTON MEANS EXPOSED ON ONE END TO PRESSURE FROM DRILLING FLUID, PRESSURE MEANS APPLIED TO SAID PISTON IN A DIRECTION OPPOSITE THAT APPLIED BY SAID DRILLING FLUID, MEANS OPERATED BY SAID PISTON OPENING AND CLOSING SAID NORMALLY OPEN SWITCH, AND
Claim 2
Dependent Claim
146 words
A BORE HOLE INCLINATION RECORDER FOR USE IN A DRILL STRING, SAID RECORDER COMPRISING: A SEALED CAPSULE WITHIN SAID DRILL STRING, AN INCLINATION RESPONSIVE SWITCH WITHIN SAID CAPSULE, SAID SWITCH HAVING MULTIPLE CONTACTS AND MEANS CLOSING ONE OR MORE OF SAID CONTACTS ACCORDING TO THE INCLINATION THEREOF, A PRINTING BAR WITHIN SAID CAPSULE, SAID PRINTING BAR HAVING MULTIPLE SPACED CONTACTS ON ITS SURFACE, AN ELECTRICAL CIRCUIT INDIVIDUALLY CONNECTING THE CONTACTS OF SAID SWITCH WITH THE CONTACTS OF SAID PRINTING BAR AND WITH A POWER SOURCE, A NORMALLY OPEN SWITCH IN SAID ELECTRICAL CIRCUIT, A MOVABLE SHEET OF ELECTRO-SENSITIVE MATERIAL ADJACENT THE CONTACTS OF SAID PRINTING BAR, PISTON MEANS EXPOSED ON ONE END TO PRESSURE FROM DRILLING FLUID, PRESSURE MEANS APPLIED TO SAID PISTON IN A DIRECTION OPPOSITE THAT APPLIED BY SAID DRILLING FLUID, MEANS OPERATED BY SAID PISTON OPENING AND CLOSING SAID NORMALLY OPEN SWITCH, AND
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-03-17 | 1967-09-16 | 1968-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-17 | 1971-09-16 | 1972-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-17 | 1975-09-16 | 1976-03-17 | $7700.00 | Window Closed / Lapsed |