US3120118A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid meter calibrator
Assignee: Service Pipe Line Co
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Filing: 1961-01-23
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Granted: 1964-02-04
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Expires: 1981-01-23
Abstract
No abstract record available.
Inventors
- 👤 Robert E Boyle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:55
CPC Classifications
G; G01; G01F; G01F25/00; G01F25/10; G01F25/11
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
APPARATUS FOR CALIBRATING A FLOW METER IN A PIPELINE INCLUDING SIGNAL MEANS FOR PRODUCING A SIGNAL DIRECTLY PROPORTIONAL TO THE OUTPUT OF SAID FLOW METER, A CALIBRATION BARREL CONNECTED IN SERIES WITH SAID FLOW METER, A MOVABLE PISTON IN SAID BARREL, FLEXIBLE MEANS ON SAID PISTON SEALING OFF FLOW BETWEEN SAID BARREL AND SAID PISTON, TWO PROXIMITY SWITCHES SPACED APART ON SAID BARREL, THE INSIDE SURFACE OF SAID BARREL BEING CONTINUOUS AND SMOOTH THROUGHOUT A ZONE EXTENDING COMPLETELY BETWEEN AND AT LEAST SLIGHTLY BEYOND EACH OF SAID PROXIMITY SWITCHES, AND A COUNTER CONNECTED TO SAID SIGNAL MEANS ADAPTED TO MEASURE SAID SIGNAL AND PRODUCE AN INDICATION OF SAID MEASUREMENT, SAID COUNTER BEING CONNECTED TO SAID PROXIMITY SWITCHES SUCH THAT ACTUATION OF ONE INITIATES SAID COUNTER WHILE ACTUATION OF THE OTHER TERMINATES OPERATION OF SAID COUNTER.
Claim 2
Dependent Claim
135 words
APPARATUS FOR CALIBRATING A FLOW METER IN A PIPELINE INCLUDING SIGNAL MEANS FOR PRODUCING A SIGNAL DIRECTLY PROPORTIONAL TO THE OUTPUT OF SAID FLOW METER, A CALIBRATION BARREL CONNECTED IN SERIES WITH SAID FLOW METER, A MOVABLE PISTON IN SAID BARREL, FLEXIBLE MEANS ON SAID PISTON SEALING OFF FLOW BETWEEN SAID BARREL AND SAID PISTON, TWO PROXIMITY SWITCHES SPACED APART ON SAID BARREL, THE INSIDE SURFACE OF SAID BARREL BEING CONTINUOUS AND SMOOTH THROUGHOUT A ZONE EXTENDING COMPLETELY BETWEEN AND AT LEAST SLIGHTLY BEYOND EACH OF SAID PROXIMITY SWITCHES, AND A COUNTER CONNECTED TO SAID SIGNAL MEANS ADAPTED TO MEASURE SAID SIGNAL AND PRODUCE AN INDICATION OF SAID MEASUREMENT, SAID COUNTER BEING CONNECTED TO SAID PROXIMITY SWITCHES SUCH THAT ACTUATION OF ONE INITIATES SAID COUNTER WHILE ACTUATION OF THE OTHER TERMINATES OPERATION OF SAID COUNTER.
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) | 1967-02-03 | 1967-08-05 | 1968-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-02-03 | 1971-08-05 | 1972-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-02-03 | 1975-08-05 | 1976-02-04 | $7700.00 | Window Closed / Lapsed |