US2746284A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pycnometer for volatile liquids
Assignee: Phillips Petroleum Co
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Filing: 1953-05-11
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Granted: 1956-05-22
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Expires: 1973-05-11
Abstract
No abstract record available.
Inventors
- 👤 Robert L Posey
- 👤 Herbert E Reese
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:14
CPC Classifications
G; G01; G01N; G01N9/00; G01N9/02; G01N9/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
IN A PYCNOMETER FOR MEASURING A PREDETERMINED VOLUME OF A VOLATILE LIQUID, A HEAD CHAMBER, A BODY CHAMBER, A FLEXIBLE AND TRANSPARENT BUSHING DISPOSED BETWEEN SAID HEAD CHAMBER AND SAID BODY CHAMBER, MEANS FOR ATTACHING SAID HEAD CHAMBER TO SAID BODY CHAMBER, SAIDS MEANS FOR ATTACHING THE HEAD CHAMBER AND THE BODY CHAMBER BEING PROVIDED WITH OPENINGS FOR VIEWING THE INTERIOR OF SAID CHAMBERS THROUGH SAID TRANSPARENT BUSHING, MEANS FOR COMPRESSING SAID BUSHING THEREBY FORMING COMPRESSION SEALS ON THE TOP AND BOTTOM SURFACES OF SAID BUSHING, SAID HEAD CHAMBER COMMUNICATING THROUGH SAID BUSHING WITH SAID BODY CHAMBER, MEANS FOR WITHDRAWING LIQUID MATERIAL FROM SAID HEAD CHAMBER, MEANS FOR PURGING VAPOR FROM SAID HEAD CHAMBER, AND AUTOMATIC MEANS FOR RELEASING PRESSURE FROM SAID HEAD CHAMBER WHEN SAID PRESSURE EXCEEDS A PREDETERMINED VALUE.
Claim 2
Dependent Claim
131 words
IN A PYCNOMETER FOR MEASURING A PREDETERMINED VOLUME OF A VOLATILE LIQUID, A HEAD CHAMBER, A BODY CHAMBER, A FLEXIBLE AND TRANSPARENT BUSHING DISPOSED BETWEEN SAID HEAD CHAMBER AND SAID BODY CHAMBER, MEANS FOR ATTACHING SAID HEAD CHAMBER TO SAID BODY CHAMBER, SAIDS MEANS FOR ATTACHING THE HEAD CHAMBER AND THE BODY CHAMBER BEING PROVIDED WITH OPENINGS FOR VIEWING THE INTERIOR OF SAID CHAMBERS THROUGH SAID TRANSPARENT BUSHING, MEANS FOR COMPRESSING SAID BUSHING THEREBY FORMING COMPRESSION SEALS ON THE TOP AND BOTTOM SURFACES OF SAID BUSHING, SAID HEAD CHAMBER COMMUNICATING THROUGH SAID BUSHING WITH SAID BODY CHAMBER, MEANS FOR WITHDRAWING LIQUID MATERIAL FROM SAID HEAD CHAMBER, MEANS FOR PURGING VAPOR FROM SAID HEAD CHAMBER, AND AUTOMATIC MEANS FOR RELEASING PRESSURE FROM SAID HEAD CHAMBER WHEN SAID PRESSURE EXCEEDS A PREDETERMINED VALUE.
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) | 1959-05-22 | 1959-11-21 | 1960-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-22 | 1963-11-21 | 1964-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-22 | 1967-11-21 | 1968-05-22 | $7700.00 | Window Closed / Lapsed |