US3662846A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Batch weighing with non-cumulative digital cutoff
Assignee: Reliance Electric and Engineering Co
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Filing: 1968-12-23
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Granted: 1972-05-16
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Expires: 1988-12-23
Abstract
Abstract A digital cutoff system comprising a weighing scale for producing analog signals in accordance with the desired weights of a plurality of materials successively placed upon the scale, analog-to-digital converter means for changing the analog signals to digital signals, means operable while one or more of the materials are upon the scale for resetting the converter means to cancel the digital signals corresponding to said one or more materials, and circuit means for producing a cutoff signal in response to digital signals corresponding to the desired weight of each of said plurality of materials. By resetting the converter means after each material is weighed and while the load is upon the scale, noncumulative weighing of multiple materials is accomplished with digital control of each material.
Inventors
- 👤 Charles F Sandusky
- 👤 William C Susor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:01
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
114 words
A digital cutoff system comprising, in combination, a weighing scale, means for producing voltage in accordance with load upon the scale, means for so producing digital signals in accordance with said voltage that said digital signals represent load upon the scale, means for selecting the desired weights of several materials, means for detecting coincidence between the digital signals and the desired weights and for producing cutoff signals to control the weight of each material upon the scale, means for storing cumulative information corresponding to the digital signals, and means for canceling the digital signals in accordance with the cumulative information, whereby noncumulative weighing of multiple materials is accomplished with digital control of each material.
Claim 2
Dependent Claim
114 words
A digital cutoff system comprising, in combination, a weighing scale, means for producing voltage in accordance with load upon the scale, means for so producing digital signals in accordance with said voltage that said digital signals represent load upon the scale, means for selecting the desired weights of several materials, means for detecting coincidence between the digital signals and the desired weights and for producing cutoff signals to control the weight of each material upon the scale, means for storing cumulative information corresponding to the digital signals, and means for canceling the digital signals in accordance with the cumulative information, whereby noncumulative weighing of multiple materials is accomplished with digital control of each material.
Claim 3
Dependent Claim
164 words
A digital cutoff system comprising, in combination, a weighing scale, means for producing voltage in accordance with load upon the scale, means for so producing digital signals in accordance with said voltage that said digital signals represent load upon the scale, means for selecting the desired weights of several materials, means for detecting coincidence between the digital signals and the desired weights and for producing cutoff signals to control the weight of each material upon the scale, the means for producing digital signals producing a first set of digital signals in accordance with the weight of a first material upon the scale, and means for canceling the first set of digital signals while the first material remains upon the scale, the means for producing digital signals producing a second set of digital signals in accordance with the weight of a second material added to the first material upon the scale, whereby noncumulative weighing of two materials is accomplished with digital control of each material.
Claim 4
Dependent Claim
164 words
A digital cutoff system comprising, in combination, a weighing scale, means for producing voltage in accordance with load upon the scale, means for so producing digital signals in accordance with said voltage that said digital signals represent load upon the scale, means for selecting the desired weights of several materials, means for detecting coincidence between the digital signals and the desired weights and for producing cutoff signals to control the weight of each material upon the scale, the means for producing digital signals producing a first set of digital signals in accordance with the weight of a first material upon the scale, and means for canceling the first set of digital signals while the first material remains upon the scale, the means for producing digital signals producing a second set of digital signals in accordance with the weight of a second material added to the first material upon the scale, whereby noncumulative weighing of two materials is accomplished with digital control of each material.
Claim 5
Dependent Claim
23 words
A digital cutoff system according to claim 2 wherein means are provided for storing cumulative information corresponding to both sets of digital signals.
Claim 6
Dependent Claim
107 words
A digital cutoff system comprising, in combination, weighing scale means for producing analog signals in accordance with the desired weights of a plurality of materials successively placed upon the scale means, analog to digital converter means for changing the analog signals to digital signals, means operable while one or more of the materials are upon the scale for resetting the converter means to cancel the digital signals corresponding to said one or more materials, and circuit means for producing a cutoff signal in response to digital signals corresponding to the desired weight of each of said plurality of materials, whereby noncumulative weighing of multiple materials is accomplished.
Claim 7
Dependent Claim
107 words
A digital cutoff system comprising, in combination, weighing scale means for producing analog signals in accordance with the desired weights of a plurality of materials successively placed upon the scale means, analog to digital converter means for changing the analog signals to digital signals, means operable while one or more of the materials are upon the scale for resetting the converter means to cancel the digital signals corresponding to said one or more materials, and circuit means for producing a cutoff signal in response to digital signals corresponding to the desired weight of each of said plurality of materials, whereby noncumulative weighing of multiple materials is accomplished.
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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) | 1975-05-16 | 1975-11-15 | 1976-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-16 | 1979-11-15 | 1980-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-16 | 1983-11-15 | 1984-05-16 | $7700.00 | Window Closed / Lapsed |