US3120752A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for handling volatile liquids and determining volatile contaminants
Assignee: Pure Oil Co
•
Filing: 1960-11-25
•
Granted: 1964-02-11
•
Expires: 1980-11-25
Abstract
No abstract record available.
Inventors
- 👤 Le Roi E Hutchings
- 👤 William A Krewer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:58
CPC Classifications
G; G01; G01N; G01N7/00; G01N7/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
AN APPARATUS FOR CHARGING MEASURED SAMPLES INTO A CLOSED SYSTEM COMPRISING A CLOSED VESSEL, A MEASURING CHAMBER HAVING A LESSER VOLUME THAN SAID CLOSED VESSEL, A FIRST, GRAVITY-FLOW DISCHARGE CONDUIT COMMUNICATING THE LOWEST EXTREMITY OF SAID MEASURING CHAMBER AND SAID VESSEL, FIRST VALVE MEANS CONTROLLING SAID FIRST CONDUIT, SECOND VALVE MEANS, A SECOND CONDUIT COMMUNICATING THE HIGHEST EXTREMITY OF SAID MEASURING CHAMBER AND SECOND VALVE MEANS, A THIRD CONDUIT CONNECTING SAID SECOND VALVE MEANS AND SAID VESSEL, AN OVERFLOW TUBE CONNECTED TO SAID SECOND VALVE MEANS, SAID SECOND VALVE MEANS BEING ADAPTED TO ALTERNATELY CONNECT SAID SECOND CONDUIT TO SAID THIRD CONDUIT OR TO SAID OVERFLOW TUBE, SAID FIRST AND SECOND VALVE MEANS AND MEASURING CHAMBER COOPERATING TO DEFINE A FIXED VOLUME WITH SAID SECOND VALVE MEANS AT THE UPPER EXTREMITY OF SAID FIXED VOLUME, AND MEANS FOR FILLING SAID MEASURING CHAMBER.
Claim 2
Independent Claim
142 words
AN APPARATUS FOR CHARGING MEASURED SAMPLES INTO A CLOSED SYSTEM COMPRISING A CLOSED VESSEL, A MEASURING CHAMBER HAVING A LESSER VOLUME THAN SAID CLOSED VESSEL, A FIRST, GRAVITY-FLOW DISCHARGE CONDUIT COMMUNICATING THE LOWEST EXTREMITY OF SAID MEASURING CHAMBER AND SAID VESSEL, FIRST VALVE MEANS CONTROLLING SAID FIRST CONDUIT, SECOND VALVE MEANS, A SECOND CONDUIT COMMUNICATING THE HIGHEST EXTREMITY OF SAID MEASURING CHAMBER AND SECOND VALVE MEANS, A THIRD CONDUIT CONNECTING SAID SECOND VALVE MEANS AND SAID VESSEL, AN OVERFLOW TUBE CONNECTED TO SAID SECOND VALVE MEANS, SAID SECOND VALVE MEANS BEING ADAPTED TO ALTERNATELY CONNECT SAID SECOND CONDUIT TO SAID THIRD CONDUIT OR TO SAID OVERFLOW TUBE, SAID FIRST AND SECOND VALVE MEANS AND MEASURING CHAMBER COOPERATING TO DEFINE A FIXED VOLUME WITH SAID SECOND VALVE MEANS AT THE UPPER EXTREMITY OF SAID FIXED VOLUME, AND MEANS FOR FILLING SAID MEASURING CHAMBER.
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) | 1967-02-10 | 1967-08-12 | 1968-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-02-10 | 1971-08-12 | 1972-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-02-10 | 1975-08-12 | 1976-02-11 | $7700.00 | Window Closed / Lapsed |