Patent US3634663A successfully refreshed from Google Patents.
US3634663A
Expired / Lapsed
US
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Remote reading measuring system
Assignee: Westinghouse Electric Corp
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Filing: 1969-02-25
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Granted: 1972-01-11
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Expires: 1989-02-25
Abstract
Abstract From each of a large number of remote stations an alternating current having a frequency dependent on a quantity to be measured is generated for the purpose of being transmitted to a central station at which measurements are to be computed or recorded. Each quantity is sampled at intervals. At the central station the samples are computed to determine the desired quantities and suitable records are prepared.
Inventors
- 👤 Wallace L Williams
- 👤 David F Wright
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:52
CPC Classifications
G; G01; G01R; G01R21/00; G01R21/08
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
132 words
An arrangement for determining the usage by consumers of the product of a distribution system, comprising: a central station, a plurality of remote stations each associated with a separate user of the product being determined, a common transmission channel extending substantially from the central station towards the remote station for successively coupling each of the remote stations to said central station in repetitive cycles, signal means effective at each of said remote stations at the time of coupling to the central station for transmitting to the central station a sample signal representing the rate of usage of said product, means at the central station for recording rates of usage dependent on said signals, and means responsive to the recorded rates for estimating the total usage of said product at each remote station.
Claim 2
Dependent Claim
132 words
An arrangement for determining the usage by consumers of the product of a distribution system, comprising: a central station, a plurality of remote stations each associated with a separate user of the product being determined, a common transmission channel extending substantially from the central station towards the remote station for successively coupling each of the remote stations to said central station in repetitive cycles, signal means effective at each of said remote stations at the time of coupling to the central station for transmitting to the central station a sample signal representing the rate of usage of said product, means at the central station for recording rates of usage dependent on said signals, and means responsive to the recorded rates for estimating the total usage of said product at each remote station.
Claim 3
Dependent Claim
23 words
An arrangement as claimed in claim 1 wherein said distribution system comprises an electrical distribution system and said sample signals represent electric current.
Claim 4
Dependent Claim
23 words
An arrangement as claimed in claim 1 wherein said distribution system comprises an electrical distribution system and said sample signals represent electric power.
Claim 5
Dependent Claim
53 words
An arrangement as claimed in claim 1 wherein signal means includes means for producing a quantity having a signal magnitude dependent on the magnitude of the product to be determined, and means for producing an alternating current sample signal having a frequency dependent on said signal magnitude for transmission to the central station.
Claim 6
Dependent Claim
48 words
An arrangement as claimed in claim 4 wherein said central station comprises means responsive to said sample signal for producing pulses dependent in number to the frequency of the sample signal, and means for counting said pulses to indicate the instantaneous magnitude of the product to be determined.
Claim 7
Dependent Claim
44 words
An arrangement as claimed in claim 5 wherein said distribution system is an electrical distribution system and said sample signals represent electric power, and means responsive to the instantaneous magnitudes occurring over a period of time for determining the energy consumption during such period.
Claim 8
Dependent Claim
44 words
An arrangement as claimed in claim 5 wherein said distribution system is an electrical distribution system and said sample signals represent electric current, and means responsive to the instantaneous magnitudes occurring over a period of time for determining the ampere-hour consumption during such period.
Claim 9
Dependent Claim
122 words
An arrangement as claimed in claim 1 wherein said signal mEans at each of the remote stations comprises means for transmitting to the central station when each of the remote stations is coupled to the central station a sample signal in the form of signal units having a number dependent on the rate of usage of said product during a period which is a fraction of the cycle time required for the successive coupling of all of said remote stations to the central station, whereby time-spaced sample signals are sequentially transmitted from the remote stations to the central station, said central station comprising translating means responsive to said signal units for producing a record representative of the number of said signal units.
Claim 10
Independent Claim
102 words
The method of determining at a central station the usage of an electric quantity over a period of time at a plurality of remote stations which comprises during each of a plurality of cycles successively transmitting from each of the remote stations a sample signal representing the magnitude of the electric quantity at the time of transmission, associating the sample signals for each of the remote stations occurring over a period of time, and computing the area of the curve of the magnitudes represented by said sample signals plotted against time over said period of time for each of the remote stations.
Claim 11
Independent Claim
102 words
The method of determining at a central station the usage of an electric quantity over a period of time at a plurality of remote stations which comprises during each of a plurality of cycles successively transmitting from each of the remote stations a sample signal representing the magnitude of the electric quantity at the time of transmission, associating the sample signals for each of the remote stations occurring over a period of time, and computing the area of the curve of the magnitudes represented by said sample signals plotted against time over said period of time for each of the remote stations.
Claim 12
Dependent Claim
64 words
A method as claimed in claim 9 wherein each of said cycles comprises the step of transmitting successively from each of said remote stations a sample signal in the form of a number of signal units representative of the magnitude of the electric quantity at the time of transmission, and determining from each of said sample signals the magnitude represented by such sample signal.
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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) | 1975-01-10 | 1975-07-12 | 1976-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-10 | 1979-07-12 | 1980-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-10 | 1983-07-12 | 1984-01-11 | $7700.00 | Window Closed / Lapsed |