US3130868A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metering system
Assignee: Bristol Siddeley Engines Ltd
•
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
2026-10-23 01:31
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
135 words
A METERING 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 AN ELECTRICAL VARIABLE PULSE RATE SIGNAL TRANSMITTER WHEREBY THERE IS PROVIDED A SIGNAL TRAIN, THE TRAIN DURING A GIVEN PERIOD BEING CHARACTERISTIC OF THE VALUE OF THE PROPERTY MEASURED BY THE METER; SAID SYSTEM ALSO COMPRISING AN ELECTRICAL SUMMATING UNIT INCLUDING MEANS RESPONSIVE TO PULSE RATE AND ADAPTED TO RECEIVE SIMULTANEOUSLY A SIGNAL TRAIN DERIVED FROM EACH OF THE TRANSMITTERS AND ADAPTED TO PROVIDE AN OUTPUT TRAIN OF ELECTRICAL SIGNALS WHICH IS CHARACTERISTIC OF THE SUM OF THE VALUES OF THE PROPERTY MEASURED BY THE TWO METERS DURING SAID PERIOD.
Claim 2
Dependent Claim
135 words
A METERING 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 AN ELECTRICAL VARIABLE PULSE RATE SIGNAL TRANSMITTER WHEREBY THERE IS PROVIDED A SIGNAL TRAIN, THE TRAIN DURING A GIVEN PERIOD BEING CHARACTERISTIC OF THE VALUE OF THE PROPERTY MEASURED BY THE METER; SAID SYSTEM ALSO COMPRISING AN ELECTRICAL SUMMATING UNIT INCLUDING MEANS RESPONSIVE TO PULSE RATE AND ADAPTED TO RECEIVE SIMULTANEOUSLY A SIGNAL TRAIN DERIVED FROM EACH OF THE TRANSMITTERS AND ADAPTED TO PROVIDE AN OUTPUT TRAIN OF ELECTRICAL SIGNALS WHICH IS CHARACTERISTIC OF THE SUM OF THE VALUES OF THE PROPERTY MEASURED BY THE TWO METERS DURING SAID PERIOD.
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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 |