US3318154A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sampling apparatus
Assignee: HP Inc
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Filing: 1965-02-26
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Granted: 1967-05-09
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Expires: 1985-02-26
Abstract
No abstract record available.
Inventors
- 👤 John F Rendina
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:57
CPC Classifications
G; G01; G01N; G01N30/00; G01N30/02; G01N30/04; G01N30/24; G01N30/16; G01N30/20; G01N2030/204
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
A FLUID SAMPLING DEVICE COMPRISING: A HOUSING HAVING AN AXIALLY EXTENDING BORE, A PISTON IN SAID BORE, A SAMPLE CHAMBER OF PREDETERMINED VOLUME IN SAID PISTON, MEANS FORMING A PLURALITY OF ANNULAR CONDUITS BETWEEN THE PERIPHERY OF SAID PISTON AND SAID HOUSING, MEANS FOR DISPLACING SAID PISTON AXIALLY BETWEEN FIRST AND SECOND POSITIONS WITHIN SAID BORE, MEANS FOR APPLYING A FLUID UNDER PRESSURE TO THE OUTERMOST ONES OF SAID CONDUITS THEREBY TO REDUCE LEAKAGE INTO SAID SAMPLING DEVICE, AND MEANS INCLUDING RADIAL CONDUITS IN SAID HOUSING THAT ARE CONNECTABLE WITH AT LEAST TWO FLUID STREAMS AND RADIAL CONDUITS IN SAID PISTON FOR INTERCONNECTING SAID SAMPLE CHAMBER ALTERNATIVELY IN FIRST AND SECOND FLUID STREAMS CORRESPONDING TO SAID FIRST AND SECOND PISTON POSITIONS.
Claim 2
Dependent Claim
121 words
A FLUID SAMPLING DEVICE COMPRISING: A HOUSING HAVING AN AXIALLY EXTENDING BORE, A PISTON IN SAID BORE, A SAMPLE CHAMBER OF PREDETERMINED VOLUME IN SAID PISTON, MEANS FORMING A PLURALITY OF ANNULAR CONDUITS BETWEEN THE PERIPHERY OF SAID PISTON AND SAID HOUSING, MEANS FOR DISPLACING SAID PISTON AXIALLY BETWEEN FIRST AND SECOND POSITIONS WITHIN SAID BORE, MEANS FOR APPLYING A FLUID UNDER PRESSURE TO THE OUTERMOST ONES OF SAID CONDUITS THEREBY TO REDUCE LEAKAGE INTO SAID SAMPLING DEVICE, AND MEANS INCLUDING RADIAL CONDUITS IN SAID HOUSING THAT ARE CONNECTABLE WITH AT LEAST TWO FLUID STREAMS AND RADIAL CONDUITS IN SAID PISTON FOR INTERCONNECTING SAID SAMPLE CHAMBER ALTERNATIVELY IN FIRST AND SECOND FLUID STREAMS CORRESPONDING TO SAID FIRST AND SECOND PISTON POSITIONS.
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) | 1970-05-08 | 1970-11-07 | 1971-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-08 | 1974-11-07 | 1975-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-08 | 1978-11-07 | 1979-05-09 | $7700.00 | Window Closed / Lapsed |