US3576224A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Weighing system with analog input signals and digital cutoff signals
Assignee: Reliance Electric and Engineering Co
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Filing: 1968-12-16
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Granted: 1971-04-27
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Expires: 1988-12-16
Abstract
Abstract A digital cutoff system comprising a weighing scale, means for electing a desired weight, signal means for producing preset digital signals and additional digital signals in accordance with load upon the scale, and means for detecting coincidence between the combined digital signals and the desired weight. Desired preset weight in accordance with dribble cutoff, final cutoff and over and under tolerance detection is accomplished by varying the signal means.
Inventors
- 👤 William C Susor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:12
CPC Classifications
G; G01; G01G; G01G13/00; G01G13/24; G01G13/28; G01G23/00; G01G23/18; G01G23/36; G01G23/365
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
154 words
A digital-weighing system compriSing, in combination, weighing scale means for producing analog signals in accordance with load upon the scale, preset means for producing analog signals in accordance with desired preset weight, means for presetting a desired weight, analog to digital converter means for combining the weighing analog signal and the preset analog signal and changing the combined analog signals to digital signals, means for indicating the combined digital signals in terms of the weight of load upon the scale, the converter means including said means for presetting a desired weight, means for detecting coincidence between the combined digital signals and the desired weight and for producing an output signal for each digit in the desired weight, and gate means for receiving the output signals and for producing a cutoff signal, whereby presetting of the converter means is accomplished by varying the preset means until the desired presetting is indicated by the indicating means.
Claim 2
Dependent Claim
154 words
A digital-weighing system compriSing, in combination, weighing scale means for producing analog signals in accordance with load upon the scale, preset means for producing analog signals in accordance with desired preset weight, means for presetting a desired weight, analog to digital converter means for combining the weighing analog signal and the preset analog signal and changing the combined analog signals to digital signals, means for indicating the combined digital signals in terms of the weight of load upon the scale, the converter means including said means for presetting a desired weight, means for detecting coincidence between the combined digital signals and the desired weight and for producing an output signal for each digit in the desired weight, and gate means for receiving the output signals and for producing a cutoff signal, whereby presetting of the converter means is accomplished by varying the preset means until the desired presetting is indicated by the indicating means.
Claim 3
Dependent Claim
31 words
A digital weighing system according to claim 1 wherein the preset means includes a variable source of analog signals and switch means for applying the analog signals to the converter means.
Claim 4
Dependent Claim
72 words
A digital-weighing system comprising, in combination, a weighing scale, means for selecting a desired weight, signal means for producing preset digital signals and additional digital signals in accordance with load upon the scale and for combining said digital signals, and means for detecting coincidence between the combined signals and the desired weight, wherein the signal means includes variable analog means for producing analog signals which are converted to said preset digital signals.
Claim 5
Dependent Claim
72 words
A digital-weighing system comprising, in combination, a weighing scale, means for selecting a desired weight, signal means for producing preset digital signals and additional digital signals in accordance with load upon the scale and for combining said digital signals, and means for detecting coincidence between the combined signals and the desired weight, wherein the signal means includes variable analog means for producing analog signals which are converted to said preset digital signals.
Claim 6
Dependent Claim
83 words
A digital-weighing system comprising, in combination, weighing scale means for producing analog signals in accordance with load upon the scale, potentiometer means for producing analog signals in accordance with desired preset weight, analog to digital converter means for combining said analog signals and changing the combined analog signals to digital signals, means for selecting a desired weight, and means for detecting coincidence between the digital signals and the desired weight and for producing an output signal for each digit in the desired weight.
Claim 7
Dependent Claim
83 words
A digital-weighing system comprising, in combination, weighing scale means for producing analog signals in accordance with load upon the scale, potentiometer means for producing analog signals in accordance with desired preset weight, analog to digital converter means for combining said analog signals and changing the combined analog signals to digital signals, means for selecting a desired weight, and means for detecting coincidence between the digital signals and the desired weight and for producing an output signal for each digit in the desired weight.
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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) | 1974-04-26 | 1974-10-26 | 1975-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-26 | 1978-10-26 | 1979-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-26 | 1982-10-26 | 1983-04-27 | $7700.00 | Window Closed / Lapsed |