US4236590A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Balance with compensated loading and reference systems
Assignee: Sartorius AG
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Filing: 1979-01-23
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Granted: 1980-12-02
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Expires: 1999-01-23
Abstract
Abstract A balance having an electromagnetically compensated loading system and an electromagnetically compensated reference system includes respective signal pathways provided for feeding signals which arise in or are derived from the two systems. These signals are to be compared for measurement. The signals from the two pathways are processed coincidentally with one another for digitization, beginning simultaneously and ending simultaneously.
Inventors
- 👤 Erich Knothe
- 👤 Franz-Josef Melcher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:19
CPC Classifications
G; G01; G01G; G01G7/00; G01G7/02; G01G7/04
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
92 words
In a balance with an electromagnetically compensated loading system and an electromagnetically compensated reference system, wherein signals which arise or are derived in a load pathway are compared for measurement with signals which appear or are derived in a reference pathway, the improvement comprising means for coincidentally processing the signals from said pathways for digitization, beginning simultaneously and ending simultaneously, and including a respective analog-to-digital converter connected in said load pathway and in said reference pathway, and a reference voltage source, each of said converters being connected to said reference voltage source.
Claim 2
Dependent Claim
92 words
In a balance with an electromagnetically compensated loading system and an electromagnetically compensated reference system, wherein signals which arise or are derived in a load pathway are compared for measurement with signals which appear or are derived in a reference pathway, the improvement comprising means for coincidentally processing the signals from said pathways for digitization, beginning simultaneously and ending simultaneously, and including a respective analog-to-digital converter connected in said load pathway and in said reference pathway, and a reference voltage source, each of said converters being connected to said reference voltage source.
Claim 3
Dependent Claim
46 words
An improved balance according to claim 1, including a computer connected in series with respective counters which are connected to respective ones of said analog-to-digital converters, said computer forming one or more quotients from count values in said counters, said quotients being displayable on readout means.
Claim 4
Dependent Claim
36 words
An improved balance according to claim 1, wherein said reference voltage source is a switched source, switching times of said reference voltage source being short in comparison with resonance time of the load and reference systems.
Claim 5
Dependent Claim
32 words
An improved balance according to claim 3, including an analog-to-digital control circuit and a computer, evaluation of the reference voltage source being effected by said computer under control of said control circuit.
Claim 6
Dependent Claim
34 words
An improved balance according to claim 1, including a readout means and a respective counter connected in series with each said analog-to-digital converter, the counting positions of said counters being transmittable to said readout.
Claim 7
Dependent Claim
28 words
An improved balance according to claim 5, including a computer, said computer being operatively arranged to process the counting positions, the processed positions being transmittable to said readout.
Claim 8
Dependent Claim
36 words
An improved balance according to claim 1, including data output means, and a respective counter connected in series with each said analog-to-ditital converter, the counting position of said counters being transmittable to said data output means.
Claim 9
Dependent Claim
30 words
An improved balance according to claim 7, including a computer, said computer being operatively arranged to process the counting positions, the processed positions being transmittable to said data output means.
Claim 10
Dependent Claim
27 words
An improved balance according to either claim 6 or claim 8, wherein said computer processes said counting positions to provide a quotient formation from the values thereof.
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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) | 1983-12-02 | 1984-06-02 | 1984-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-12-02 | 1988-06-02 | 1988-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-12-02 | 1992-06-02 | 1992-12-02 | $7700.00 | Window Closed / Lapsed |