Patent US3074596A successfully refreshed from Google Patents.
US3074596A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pumping method and apparatus
Assignee: American Radiator and Standard Sanitary Corp
•
Filing: 1958-11-07
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Granted: 1963-01-22
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Expires: 1978-11-07
Abstract
No abstract record available.
Inventors
- 👤 Vito V Marchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:15
CPC Classifications
G; G01; G01F; G01F11/00; G01F11/02; G01F11/08; A; A47; A47L; A47L15/00; A47L15/42; A47L15/44; A47L15/4418; D; D06; D06F; D06F39/00; D06F39/02; D06F39/022
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
THE METHOD OF DISPENSING A DESIRED VOLUME OF LIQUID FROM A BODY OF SUCH LIQUID CONFINED IN A CONTAINER, CHARACTERIZED BY CONFINING A BODY OF AIR IN A CHAMBER OF FIXED VOLUME, PROVIDING A MOVABLE WALL IN SAID CHAMBER DIVIDING THE BODY OF AIR INTO FIRST AND SECOND BODIES OF AIR IN AIR PRESSURE RELATIONSHIP, LOCATING HEATING MEANS IN SAID FIRST BODY OF AIR, ESTABLISHING COMMUNICATION BETWEEN THE SECOND BODY OF CONFINED AIR AND SAID LIQUID CONTAINER, THERMALLY EXPANDING SAID FIRST BODY OF AIR BY SAID HEATING MEANS TO AN ADJUSTABLE PREDETERMINED VOLUME CAUSING DISPLACEMENT OF SAID SECOND BODY OF AIR WITH RESULTANT DISPLACEMENT OF A VOLUME OF LIQUID FROM THE CONTAINER PROPORTIONATE TO THE VOLUME INCREASE IN THE FIRST BODY OF AIR.
Claim 2
Independent Claim
123 words
THE METHOD OF DISPENSING A DESIRED VOLUME OF LIQUID FROM A BODY OF SUCH LIQUID CONFINED IN A CONTAINER, CHARACTERIZED BY CONFINING A BODY OF AIR IN A CHAMBER OF FIXED VOLUME, PROVIDING A MOVABLE WALL IN SAID CHAMBER DIVIDING THE BODY OF AIR INTO FIRST AND SECOND BODIES OF AIR IN AIR PRESSURE RELATIONSHIP, LOCATING HEATING MEANS IN SAID FIRST BODY OF AIR, ESTABLISHING COMMUNICATION BETWEEN THE SECOND BODY OF CONFINED AIR AND SAID LIQUID CONTAINER, THERMALLY EXPANDING SAID FIRST BODY OF AIR BY SAID HEATING MEANS TO AN ADJUSTABLE PREDETERMINED VOLUME CAUSING DISPLACEMENT OF SAID SECOND BODY OF AIR WITH RESULTANT DISPLACEMENT OF A VOLUME OF LIQUID FROM THE CONTAINER PROPORTIONATE TO THE VOLUME INCREASE IN THE FIRST BODY OF AIR.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-21 | 1966-07-23 | 1967-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-21 | 1970-07-23 | 1971-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-21 | 1974-07-23 | 1975-01-22 | $7700.00 | Window Closed / Lapsed |