US3921207A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Outage indicating apparatus for meter telemetry systems including data recorders
Assignee: ABB Inc USA
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Filing: 1974-09-26
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Granted: 1975-11-18
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Expires: 1994-09-26
Abstract
Abstract An outage condition in a quantity measured by a meter is detected in a data recorder that is connected in a telemetry system to record the meter data information. Data pulses and time interval pulses are recorded in separate data and time tracks of a recording medium. An outage indicating pulse is recorded in the time track preferably in a predetermined relationship to an interval pulse. The outage pulse is detected in a translator upon translation of the recorded data and interval pulses so as to indicate the time of the outage condition.
Inventors
- 👤 William P Doby
- 👤 Jr Albert H Maxwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:35
CPC Classifications
G; G07; G07C; G07C1/00; G07C1/10; G01; G01R; G01R13/00; G01R13/04
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
198 words
A data recorder for recording metering information of a measured quantity subject to an interruption during an outage condition, comprising: a data input for receiving pulses responsive to predetermined amounts of a measured quantity; a time impulse control means actuated at regular time intervals; a switching control means having one conductive condition in response to presence of said measured quantity and an opposite conductive condition in response to the absence of said measured quantity; a data recording circuit means connected to said data input to generate data recording pulses; a time recording circuit means including said time impulse control means to generate time interval recording pulses in response to each actuation of said time impulse control means; an outage indicating circuit means including said switching control means, said outage indicating circuit means being connected to said time recording circuit means to generate a separate outage recording pulse in said time recording circuit in response to said switching control means being operated between said one and said opposite conductive conditions such that said outage recording pulse is produced in a predetermined relationship with respect to a time interval pulse generated immediately after an outage condition in said measured quantity.
Claim 2
Dependent Claim
198 words
A data recorder for recording metering information of a measured quantity subject to an interruption during an outage condition, comprising: a data input for receiving pulses responsive to predetermined amounts of a measured quantity; a time impulse control means actuated at regular time intervals; a switching control means having one conductive condition in response to presence of said measured quantity and an opposite conductive condition in response to the absence of said measured quantity; a data recording circuit means connected to said data input to generate data recording pulses; a time recording circuit means including said time impulse control means to generate time interval recording pulses in response to each actuation of said time impulse control means; an outage indicating circuit means including said switching control means, said outage indicating circuit means being connected to said time recording circuit means to generate a separate outage recording pulse in said time recording circuit in response to said switching control means being operated between said one and said opposite conductive conditions such that said outage recording pulse is produced in a predetermined relationship with respect to a time interval pulse generated immediately after an outage condition in said measured quantity.
Claim 3
Dependent Claim
92 words
The data recorder as claimed in claim 1 including an outage impulse control means connected in said outage indicating circuit means, said outage impulse control means being actuated at the same regular time intervals as said time impulse control means with a predetermined time period occurring between the times that said time impulse control means and said outage impulse control means are actuated, said outage impulse control means being effective to initiate said outage recording pulse only upon said switching control means being operated between said one and said opposite conductive conditions.
Claim 4
Dependent Claim
66 words
The data recorder as claimed in claim 2 including a magnetic tape recording medium; a first magnetic recording means connected in said data recording circuit for producing recorded data pulses in one track of said recording medium; a second magnetic recording means connected to said time recording circuit means for producing recorded time interval pulses and outage pulses in a second track of said recording medium.
Claim 5
Dependent Claim
46 words
The data recorder as claimed in claim 3 including a timing mechanism having a timing motor and a cam rotated by said motor with said time impulse control means and said outage impulse control means both being actuated at different predetermined rotated positions of said cam.
Claim 6
Dependent Claim
67 words
The data recorder as claimed in claim 4 wherein said pulses received at said data input are responsive to predetermined amounts of electric power being measured by a watthour metering device initiating said data pulses, and wherein said switching control is energized and deenergized indirectly by the electric power being measured to establish operation between said first and second conductive states in response to an outage condition.
Claim 7
Dependent Claim
82 words
The data recorder as claimed in claim 5 wherein said time impulSe control means includes a first switch operated by a cam follower engaging said cam for actuation at said regular time intervals, and wherein said outage impulse control means includes a second switch operated by a switch actuating means disposed arcuately from said cam follower and engaging said cam such that said second switch is actuated at a predetermined short time period from the time that said first switch is actuated.
Claim 8
Dependent Claim
64 words
The data recorder as claimed in claim 6 wherein the actuating means of said second switch is displaced arcuately from the cam follower means of said first switch in the direction of rotation of said cam such that the second switch is actuated at said predetermined short time period following the instant that said first switch is actuated during each rotation of said cam.
Claim 9
Dependent Claim
73 words
The data recorder as claimed in claim 6 including a first capacitor means connected in said time recording circuit means and further including a second capacitor connected in said outage indicating circuit means such that said first capacitor is discharged through said second magnetic recording means when said first switch is actuated and said second capacitor is discharged through said second recording means upon said second switch being actuated following said outage condition.
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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) | 1978-11-17 | 1979-05-19 | 1979-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-17 | 1983-05-19 | 1983-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-17 | 1987-05-19 | 1987-11-18 | $7700.00 | Window Closed / Lapsed |