Patent US3130869A successfully refreshed from Google Patents.
US3130869A
Expired / Lapsed
US
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Metering system
Assignee: Bristol Siddeley Engines Ltd
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Filing: 1961-03-30
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Granted: 1964-04-28
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Expires: 1981-03-30
Abstract
No abstract record available.
Inventors
- 👤 Phillips Richard Morrison
- 👤 Lindsay-Scott David John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:39
CPC Classifications
B; B67; B67D; B67D7/00; B67D7/06; B67D7/74; B67D7/743; B67D7/744; G; G08; G08C; G08C13/00; G08C13/02; B67D2007/745; B67D2007/746
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
178 words
A FLUID BLENDING SYSTEM COMPRISING TWO METERS, EACH METER (A) BEING ADAPTED FOR USE IN ASSOCIATION WITH A FLUID STREAM TO MEASURE A PROPERTY OF THE STREAM, (B) WHEN IN USE BEING IN ASSOCIATION WITH A DIFFERENT FLUID STREAM AND (C) EACH METER BEING CONNECTED TO A VARIABLE PULSE RATE ELECTRICAL SIGNAL TRANSMITTER WHEREBY THERE IS PROVIDED A DISCRETE SIGNAL TRAIN, THE TRAIN DURING A GIVEN PERIOD BEING CHARACTERISTIC OF THE VALUE OF THE PROPERTY MEASURED BY THE METER; SAID SYSTEM ALSO COMPRISING A PULSE RATE RESPONSIVE ELECTRICAL CIRCUIT ADAPTED TO RECEIVE SIMULTANEOUSLY A SEPARATE DISCRETE SIGNAL TRAIN DERIVED FROM EACH OF THE TRANSMITTERS AND ADAPTED TO PROVIDE AN OUTPUT ELECTRICAL SIGNAL WHEN THE RATIO OF THE VALUES OF THE PROPERTIES MEASURED BY THE METERS DIFFERS FROM A PRE-DETERMINED RATIO; SAID SYSTEM ALSO COMPRISING AN ELECTRO-MECHANICALLY OPERATED FLOW CONTROL UNIT, ADAPTED TO BE CONNECTED INTO THE FLUID STREAMS AND ADAPTED TO RESPOND TO SIGNALS DERIVED FROM SAID ELECTRICAL CIRCUIT TO MAINTAIN THE RATIO OF THE VALUES OF THE PROPERTIES AS MEASURED BY THE METERS AT SAID PRE-DETERMINED RATIO.
Claim 2
Dependent Claim
178 words
A FLUID BLENDING SYSTEM COMPRISING TWO METERS, EACH METER (A) BEING ADAPTED FOR USE IN ASSOCIATION WITH A FLUID STREAM TO MEASURE A PROPERTY OF THE STREAM, (B) WHEN IN USE BEING IN ASSOCIATION WITH A DIFFERENT FLUID STREAM AND (C) EACH METER BEING CONNECTED TO A VARIABLE PULSE RATE ELECTRICAL SIGNAL TRANSMITTER WHEREBY THERE IS PROVIDED A DISCRETE SIGNAL TRAIN, THE TRAIN DURING A GIVEN PERIOD BEING CHARACTERISTIC OF THE VALUE OF THE PROPERTY MEASURED BY THE METER; SAID SYSTEM ALSO COMPRISING A PULSE RATE RESPONSIVE ELECTRICAL CIRCUIT ADAPTED TO RECEIVE SIMULTANEOUSLY A SEPARATE DISCRETE SIGNAL TRAIN DERIVED FROM EACH OF THE TRANSMITTERS AND ADAPTED TO PROVIDE AN OUTPUT ELECTRICAL SIGNAL WHEN THE RATIO OF THE VALUES OF THE PROPERTIES MEASURED BY THE METERS DIFFERS FROM A PRE-DETERMINED RATIO; SAID SYSTEM ALSO COMPRISING AN ELECTRO-MECHANICALLY OPERATED FLOW CONTROL UNIT, ADAPTED TO BE CONNECTED INTO THE FLUID STREAMS AND ADAPTED TO RESPOND TO SIGNALS DERIVED FROM SAID ELECTRICAL CIRCUIT TO MAINTAIN THE RATIO OF THE VALUES OF THE PROPERTIES AS MEASURED BY THE METERS AT SAID PRE-DETERMINED RATIO.
References Cited (Backward Citations)
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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) | 1967-04-28 | 1967-10-28 | 1968-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-28 | 1971-10-28 | 1972-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-28 | 1975-10-28 | 1976-04-28 | $7700.00 | Window Closed / Lapsed |