Patent US3245268A successfully refreshed from Google Patents.
US3245268A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water sampler
Assignee: Individual
•
Filing: 1964-05-08
•
Granted: 1966-04-12
•
Expires: 1984-05-08
Abstract
No abstract record available.
Inventors
- 👤 Paul B Archibald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:29
CPC Classifications
G; G01; G01N; G01N1/00; G01N1/02; G01N1/10; G01N1/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
166 words
A DEEP WATER SAMPLER COMPRISING, (A) A BUOYANT OUTER CASE HAVING A COMPARTMENT FOR RECEIVING WATER SAMPLES THEREIN, (B) A VALVE BLOCK AFFIXED TO SAID OUTER CASE THE COMBINATION OF SAID VALVE BLOCK AND SAID OUTER CASE HAVING POSITIVE BUOYANCY, (C) FIRST PORTING MEANS THROUGH SAID VALVE BLOCK FOR UNIDIRECTIONAL WATER FLOW INTO SAID COMPARTMENT, (D) A RUPTURE DISC LOCATED IN SAID VALVE BLOCK IN PRESSURE COMMUNICATION WITH THE WATER OUTSIDE SAID CASE, (E) A WEIGHT DISENGAGEABLY MATED TO SAID OUTER CASE ADJACENT SAID VALVE BLOCK AND COVERING AN EXTERIOR OPENING OF SAID FIRST PORTING MEANS, THE COMBINATION OF SAID OUTER CASE, SAID VALVE BLOCK AND SAID WEIGHT HAVING NEGATIVE BUOYANCY. (F) A SECOND PORTING MEANS THROUGH SAID VALVE BLOCK COMMUNICATING WITH SAID RUPTURE DISK SAID COMPARTMENT AND SAID WEIGHT, (G) CHECK VALVE MEANS ASSOCIATED EITH SAID SECOND PORTING MEANS TO PREVENT BACKFLOW OF WATER OUT OF SAID COMPARTMENT, AND (H) MEANS FOR ESTABLISHING AND RETAINING A VACUUM WITHIN SAID SECOND PORTING MEANS AND SAID COMPARTMENT.
Claim 2
Dependent Claim
166 words
A DEEP WATER SAMPLER COMPRISING, (A) A BUOYANT OUTER CASE HAVING A COMPARTMENT FOR RECEIVING WATER SAMPLES THEREIN, (B) A VALVE BLOCK AFFIXED TO SAID OUTER CASE THE COMBINATION OF SAID VALVE BLOCK AND SAID OUTER CASE HAVING POSITIVE BUOYANCY, (C) FIRST PORTING MEANS THROUGH SAID VALVE BLOCK FOR UNIDIRECTIONAL WATER FLOW INTO SAID COMPARTMENT, (D) A RUPTURE DISC LOCATED IN SAID VALVE BLOCK IN PRESSURE COMMUNICATION WITH THE WATER OUTSIDE SAID CASE, (E) A WEIGHT DISENGAGEABLY MATED TO SAID OUTER CASE ADJACENT SAID VALVE BLOCK AND COVERING AN EXTERIOR OPENING OF SAID FIRST PORTING MEANS, THE COMBINATION OF SAID OUTER CASE, SAID VALVE BLOCK AND SAID WEIGHT HAVING NEGATIVE BUOYANCY. (F) A SECOND PORTING MEANS THROUGH SAID VALVE BLOCK COMMUNICATING WITH SAID RUPTURE DISK SAID COMPARTMENT AND SAID WEIGHT, (G) CHECK VALVE MEANS ASSOCIATED EITH SAID SECOND PORTING MEANS TO PREVENT BACKFLOW OF WATER OUT OF SAID COMPARTMENT, AND (H) MEANS FOR ESTABLISHING AND RETAINING A VACUUM WITHIN SAID SECOND PORTING MEANS AND SAID COMPARTMENT.
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) | 1969-04-11 | 1969-10-11 | 1970-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-11 | 1973-10-11 | 1974-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-11 | 1977-10-11 | 1978-04-12 | $7700.00 | Window Closed / Lapsed |