US4051424A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Digital amp-hour monitor
Assignee: United States Department of the Navy
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Filing: 1976-07-13
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Granted: 1977-09-27
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Expires: 1996-07-13
Abstract
Abstract An amp-hour monitor is provided to determine the power expended by a marineattery power supply system. Digital processing circuitry monitors a selected battery system and provides a readout of the power expended using a digital display. Additionally, a display of on-line current being drawn from the individual battery packs is displayed.
Inventors
- 👤 James A. Privee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:15
CPC Classifications
G; G01; G01R; G01R21/00; G01R21/133; G01R31/00; G01R31/36; G01R31/3644; G01R31/3648; G01R31/382
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
176 words
A battery monitor system comprising: input circuit means adapted to make connection with a battery pack for producing an electrical analog of the current therefrom; digital panel meter means connected to said input circuit means for converting the output thereof to a binary code digital signal and displaying the display analog thereof; first signal converter means connected to said digital panel meter means for converting the binary code digital signal output to a binary signal; read-only-memory means connected to said first signal converter means and programmed to serve as a multiplication table storing the product of a time interval and a current corresponding to the binary input signal; accumulator circuit means connected to said read-only-memory for summing the product outputs thereof; second signal converter means connected to said accumulator circuit means for converting the digital output signal therefrom to a binary code signal; panel display means connected to said second signal converter means for providing a visual read out; and timing control means connected to each of the aforerecited means for providing a timing signal therefor.
Claim 2
Dependent Claim
176 words
A battery monitor system comprising: input circuit means adapted to make connection with a battery pack for producing an electrical analog of the current therefrom; digital panel meter means connected to said input circuit means for converting the output thereof to a binary code digital signal and displaying the display analog thereof; first signal converter means connected to said digital panel meter means for converting the binary code digital signal output to a binary signal; read-only-memory means connected to said first signal converter means and programmed to serve as a multiplication table storing the product of a time interval and a current corresponding to the binary input signal; accumulator circuit means connected to said read-only-memory for summing the product outputs thereof; second signal converter means connected to said accumulator circuit means for converting the digital output signal therefrom to a binary code signal; panel display means connected to said second signal converter means for providing a visual read out; and timing control means connected to each of the aforerecited means for providing a timing signal therefor.
Claim 3
Dependent Claim
27 words
A battery monitor system according to claim 1 in which said input circuit means includes a switching arrangement to sample inputs from a plurality of battery packs.
Claim 4
Dependent Claim
101 words
A battery monitor system according to claim 1 in which said timing control means includes: clear and initiate circuit means connected to power mains and to control switches for providing operational power and starting control signals; a master clock connected to said clear and initiate circuit means for providing an uninterrupted chain of timing pulses; a convert command circuit connected to said master clock for receipt of signals therefrom for generation of control pulses therefrom; and analog input circuit connected to said convert command circuit and connected to the battery packs to be monitored for sequentially selecting an individual battery pack.
Claim 5
Dependent Claim
44 words
A battery monitor system according to claim 3 in which said timing control means further includes: accumulator control logic circuit means connected to said master clock to receive timing pulses therefrom for generating control pulses for timely activation of the aforesaid accumulator circuit means.
Claim 6
Dependent Claim
37 words
A battery control monitor according to claim 3 in which said timing control means further includes a PROM enable circuit connected to said master clock for generation of control pulses therefrom to control the aforesaid reach-only-memory means.
Claim 7
Dependent Claim
37 words
A battery control monitor according to claim 4 in which said timing control means further includes a PROM enable circuit connected to said master clock for generation of control pulses therefrom to control the aforesaid read-only-memory means.
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) | 1980-09-26 | 1981-03-28 | 1981-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-09-26 | 1985-03-28 | 1985-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-09-26 | 1989-03-28 | 1989-09-27 | $7700.00 | Window Closed / Lapsed |