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US3851160A
Expired / Lapsed
US
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Measure value method and apparatus
Assignee: Gebr Hofmann GmbH and Co KG Maschinenfabrik
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Filing: 1973-09-20
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Granted: 1974-11-26
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Expires: 1993-09-20
Abstract
Abstract A method and apparatus for evaluating electrical measurement values derived from a test stand in which upper and lower tolerance values, stored for example on a punched card, are coverted into analog signals with the upper and lower value signals being applied to one difference forming circuit while the measurement value and one of the tolerance signals is applied to a second difference forming circuit. The resulting difference signals are divided, one into the other, and applied to an analog display.
Inventors
- 👤 U Heimprecht
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:13
CPC Classifications
G; G01; G01M; G01M15/00; G01M15/04; G01M15/05
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
137 words
Apparatus for evaluating a measurement value in a testing stand, comprising storage means for storing upper and lower tolerance values in respect to a part to be tested, digital-analog converter means for converting the stored tolerance values into analog signals, first difference-forming means for forming a difference between the signals corresponding to the lower and the upper tolerance values, second difference-forming means for forming a difference between the signals corresponding to the measurement value and one of the tolerance values, the first and second difference-forming means being connected to receive the output signals of the digital-analog converter means, dividing means connected to the outputs of the first and second difference-forming means, and display means connected to the dividing means for displaying the result of the comparison between the measurement value and the upper and lower tolerance values.
Claim 2
Dependent Claim
137 words
Apparatus for evaluating a measurement value in a testing stand, comprising storage means for storing upper and lower tolerance values in respect to a part to be tested, digital-analog converter means for converting the stored tolerance values into analog signals, first difference-forming means for forming a difference between the signals corresponding to the lower and the upper tolerance values, second difference-forming means for forming a difference between the signals corresponding to the measurement value and one of the tolerance values, the first and second difference-forming means being connected to receive the output signals of the digital-analog converter means, dividing means connected to the outputs of the first and second difference-forming means, and display means connected to the dividing means for displaying the result of the comparison between the measurement value and the upper and lower tolerance values.
Claim 3
Dependent Claim
45 words
Apparatus according to claim 1 wherein the display means is an analog display, the arrangement being such that the analog nought value is brought into coincidence with the lower tolerance value and the analog one value is brought into coincidence with the upper tolerance value.
Claim 4
Dependent Claim
33 words
Apparatus according to Claim 2 wherein the analog display has a scale division of 0% . . . 100% . . . 0% between the analog nought value and the analog one value.
Claim 5
Dependent Claim
31 words
Apparatus according to claim 1 also including two display lamps operable to indicate if the measurement value goes outside the range of values between the lower and the upper tolerance values.
Claim 6
Dependent Claim
22 words
Apparatus according to claim 1 in which said second means forms a difference between the lower tolerance value and the measurement value.
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) | 1977-11-25 | 1978-05-27 | 1978-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-25 | 1982-05-27 | 1982-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-25 | 1986-05-27 | 1986-11-26 | $7700.00 | Window Closed / Lapsed |