Patent CA485444A successfully refreshed from Google Patents.
US3276263A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sampler
Assignee: Mobil Oil AS
•
Filing: 1964-01-23
•
Granted: 1966-10-04
•
Expires: 1984-01-23
Abstract
No abstract record available.
Inventors
- 👤 Jr William G Keeney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:21
CPC Classifications
G; G01; G01N; G01N1/00; G01N1/02; G01N1/10; G01N1/20; G01N1/2035
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
A SAMPLING APPARATUS COMPRISING MEANS FORMING A FLOW PASSAGE ADAPTED TO BE INTERCONNECTED IN A FLOW LINE, MEANS FORMING A PISTON CHAMBER OPENING INTO SAID FLOW PASSAGE, A CHARGING PISTON SLIDABLY DISPOSED IN SAID CHAMBER, MEANS FORMING A SECOND PASSAGE OPENING INTO SAID FLOW PASSAGE AT A POINT OPPOSITE SAID CHAMBER AND ADAPTED TO RECEIVE SAID PISTON IN A SUBSTANTIALLY FLUID-TIGHT RELATIONSHIP, SAID PISTON BEING NORMALLY DISPOSED IN A POSITION IN WHICH IT DOES NOT TRAVERSE SAID FLOW PASSAGE AND EXTEND INTO SAID SECOND PASSAGE, NORMALLY CLOSED VALVE MEANS DISPOSED IN SAID SECOND PASSAGE, AND ADAPTED TO BE OPENED UPON THE PROJECTION OF SAID PISTON INTO SAID SECOND PASSAGE, AND MEANS OPERATIVELY CONNECTED WITH SAID PISTON FOR PROJECTING SAID PISTON THROUGH SAID FLOW PASSAGE INTO SAID SECOND PASSAGE WHEREBY A SAMPLE OF FLUID IS DISPLACED PAST SAID VALVE MEANS.
Claim 2
Dependent Claim
139 words
A SAMPLING APPARATUS COMPRISING MEANS FORMING A FLOW PASSAGE ADAPTED TO BE INTERCONNECTED IN A FLOW LINE, MEANS FORMING A PISTON CHAMBER OPENING INTO SAID FLOW PASSAGE, A CHARGING PISTON SLIDABLY DISPOSED IN SAID CHAMBER, MEANS FORMING A SECOND PASSAGE OPENING INTO SAID FLOW PASSAGE AT A POINT OPPOSITE SAID CHAMBER AND ADAPTED TO RECEIVE SAID PISTON IN A SUBSTANTIALLY FLUID-TIGHT RELATIONSHIP, SAID PISTON BEING NORMALLY DISPOSED IN A POSITION IN WHICH IT DOES NOT TRAVERSE SAID FLOW PASSAGE AND EXTEND INTO SAID SECOND PASSAGE, NORMALLY CLOSED VALVE MEANS DISPOSED IN SAID SECOND PASSAGE, AND ADAPTED TO BE OPENED UPON THE PROJECTION OF SAID PISTON INTO SAID SECOND PASSAGE, AND MEANS OPERATIVELY CONNECTED WITH SAID PISTON FOR PROJECTING SAID PISTON THROUGH SAID FLOW PASSAGE INTO SAID SECOND PASSAGE WHEREBY A SAMPLE OF FLUID IS DISPLACED PAST SAID VALVE MEANS.
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) | 1969-10-03 | 1970-04-04 | 1970-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-03 | 1974-04-04 | 1974-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-03 | 1978-04-04 | 1978-10-04 | $7700.00 | Window Closed / Lapsed |