US3070993A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tube leakage testing apparatus
Assignee: Atlantic Richfield Co
•
Filing: 1959-02-16
•
Granted: 1963-01-01
•
Expires: 1979-02-16
Abstract
No abstract record available.
Inventors
- 👤 Douglas C Rowell
- 👤 Alex C Klaczynski
- 👤 Flinn Willard Ray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:51
CPC Classifications
G; G01; G01M; G01M3/00; G01M3/02; G01M3/04; G01M3/06; G01M3/08; G01M3/083; G01M3/022; G01M3/26; G01M3/28; G01M3/2846
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
120 words
TUBE LEAKAGE TESTING APPARATUS COMPRISING A CONTAINER FOR HOLDING A LIQUID, VERTICALLY MOVABLE TUBE-RECEIVING MEANS IN SAID CONTAINER FOR RECEIVING OPPOSITE ENDS OF A TUBE IN SEALED ENGAGEMENT THEREWITH, SAID TUBE-RE CEIVING MEANS PERMITTING SAID TUBE TO BE SELECTIVELY SUBMERGED OR EMERGED RELATIVE TO THE LIQUID IN SAID CONTAINER, AND SEPARATE PNEUMATIC AND HYDROSTATIC PRESSURE SOURCES, SAID TUBE-RECEIVING MEANS AT ONE END OF SAID TUBE INCLUDING FIRST PASSAGE MEANS LEADING TO BOTH OF SAID PRESSURE SOURCES AND FIRST VALVE MEANS FOR EFFECTING ALTERNATIVE COMMUNICATION BETWEEN SAID TUBE AND SAID SOURCES, SAID TUBERECEIVING MEANS AT THE OTHER END OF SAID TUBE INCLUDING SECOND PASSAGE MEANS LEADING TO ATMOSPHERE AND INCLUDING SECOND VALVE MEANS FOR OPENING AND CLOSING SAID TUBE TO ATMOSPHERE.
References Cited (Backward Citations)
US1592298A
Cited
US2394875A
Cited
US2398328A
Cited
US2396380A
Cited
US2532954A
Cited
US2449556A
Cited
US2633739A
Cited
US2578728A
Cited
US2673462A
Cited
US2697935A
Cited
US2766613A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-31 | 1966-07-02 | 1967-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-31 | 1970-07-02 | 1971-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-31 | 1974-07-02 | 1975-01-01 | $7700.00 | Window Closed / Lapsed |