US3270549A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid meter calibrating device
Assignee: Individual
•
Filing: 1964-08-14
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Granted: 1966-09-06
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Expires: 1984-08-14
Abstract
No abstract record available.
Inventors
- 👤 William R Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:26
CPC Classifications
G; G01; G01F; G01F25/00; G01F25/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
A DEVICE OF THE CHARACTER DESCRIBED, COMPRISING A CLOSED CYLINDER HAVING FIRST AND SECOND ENDS, A PISTON WORKING IN SAID CYLINGER, A PISTON ROD FIXED TO THE PISTON AND WORKING THROUGH SAID FIRST END OF THE CYLINDER, A VENTED OIL RESERVOIR, AN OIL TRANSFER PIPE LEADING FROM THE RESERVOIR THROUGH SAID FIRST END, AND PROVIDING FOR AN OIL CUSHION IN THE TRANSFER PIPE AND IN THE CYLINDER BETWEEN SAID FIRST END AND THE PISTON, AN EXTERNAL OIL DISPLACEMENT GAUGE OPERATIVELY CONNECTED TO THE PISTON ROD, AND A GAS INPUT PIPE LEADING INTO THE CYLINDER THROUGH SAID SECOND END OF THE CYLINDER BETWEEN THE SAID SECOND END OF THE CYLINDER AND THE PISTON, SAID INPUT PIPE BEING ADAPTED TO BE CONNECTED TO A METER-EQUIPPED SOURCE OF GAS UNDER PRESSURE.
Claim 2
Independent Claim
128 words
A DEVICE OF THE CHARACTER DESCRIBED, COMPRISING A CLOSED CYLINDER HAVING FIRST AND SECOND ENDS, A PISTON WORKING IN SAID CYLINGER, A PISTON ROD FIXED TO THE PISTON AND WORKING THROUGH SAID FIRST END OF THE CYLINDER, A VENTED OIL RESERVOIR, AN OIL TRANSFER PIPE LEADING FROM THE RESERVOIR THROUGH SAID FIRST END, AND PROVIDING FOR AN OIL CUSHION IN THE TRANSFER PIPE AND IN THE CYLINDER BETWEEN SAID FIRST END AND THE PISTON, AN EXTERNAL OIL DISPLACEMENT GAUGE OPERATIVELY CONNECTED TO THE PISTON ROD, AND A GAS INPUT PIPE LEADING INTO THE CYLINDER THROUGH SAID SECOND END OF THE CYLINDER BETWEEN THE SAID SECOND END OF THE CYLINDER AND THE PISTON, SAID INPUT PIPE BEING ADAPTED TO BE CONNECTED TO A METER-EQUIPPED SOURCE OF GAS UNDER PRESSURE.
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) | 1969-09-05 | 1970-03-07 | 1970-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-05 | 1974-03-07 | 1974-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-05 | 1978-03-07 | 1978-09-06 | $7700.00 | Window Closed / Lapsed |