Patent US3890567A successfully refreshed from Google Patents.
US3890567A
Expired / Lapsed
US
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Temperature compensated resistance measuring of an elongated electrical conductor
Assignee: Individual
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Filing: 1974-01-11
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Granted: 1975-06-17
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Expires: 1994-01-11
Abstract
Abstract The value of the electrical resistance and of the temperature of an elongated electrical conductor is measured at short time intervals while it is continuously advanced in a longitudinal direction during the manufacturing process, and the measured resistance is corrected to the resistance value at a predetermine temperature, particularly 20*C. Slidable contacts are pressed against the conductor to measure the resistance and a thermometer adjacent the conductor measures the temperature. It is desirable to connect the contacts and thermometer to a computer to automate the operation.
Inventors
- 👤 Manfred Knuefelmann
- 👤 Ingo Seidel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:56
CPC Classifications
G; G01; G01R; G01R31/00; G01R31/50; G01R31/58; G01R31/59; G01R27/00; G01R27/02
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
71 words
A method of determining the resistance of an elongated conductor while said conductor moves in the direction of elongation thereof which comprises: a. conductively securing a plurality of contacts to a portion of said conductor in longitudinally spaced relationship; b. moving the secured contacts jointly with said conductor; and c. generating a signal indicative of the resistance between two of said contacts while said two contacts move jointly with said conductor.
Claim 2
Independent Claim
71 words
A method of determining the resistance of an elongated conductor while said conductor moves in the direction of elongation thereof which comprises: a. conductively securing a plurality of contacts to a portion of said conductor in longitudinally spaced relationship; b. moving the secured contacts jointly with said conductor; and c. generating a signal indicative of the resistance between two of said contacts while said two contacts move jointly with said conductor.
Claim 3
Dependent Claim
65 words
A method according to claim 1, wherein said two contacts are released after said generating from said portion of the conductor and thereafter conductively secured to another portion of said conductor in longitudinally spaced relationship for joint movement with said second portion, and another signal indicative of the resistance between said two contacts is generated while said two contacts move jointly with said second portion.
Claim 4
Dependent Claim
42 words
A method according to claim 2, wherein the spacing of said two contacts in said direction is the same during the generating of the respective signals indicative of the resistances between said two contacts while moving with said portions of said conductor.
Claim 5
Dependent Claim
61 words
A method according to claim 2, wherein the temperature of each of said portions of said conductor is sensed during the generating of said two signals, a temperature signal is generated in response to each sensed temperature, and a signal indicative Of the resistance of each of said portions at a reference temperature is produced in response to the generated signals.
Claim 6
Dependent Claim
47 words
A method according to claim 1, wherein a direct current is passed through said portion of said conductor between a third and a fourth one of said contacts, a signal responsive to the voltage drop between said two contacts being generated as an indication of said resistance.
Claim 7
Dependent Claim
124 words
Apparatus for determining the resistance of an elongated conductor while said conductor moves in a path in the direction of elongation thereof comprising: a. a carrier; b. guide means for guiding movement of said carrier in said direction adjacent said path; c. a plurality of contacts mounted on said carrier and spaced in said direction; d. engaging means for releasably engaging said contacts with said conductor in longitudinally spaced relationship, and for thereby maintaining a conductive connection between said contacts while said conductor moves in said path and said carrier moves in said direction jointly with said conductor; and e. resistance measuring means for measuring the resistance between two of said contacts while said two contacts move jointly with said carrier and said conductor.
Claim 8
Dependent Claim
124 words
Apparatus for determining the resistance of an elongated conductor while said conductor moves in a path in the direction of elongation thereof comprising: a. a carrier; b. guide means for guiding movement of said carrier in said direction adjacent said path; c. a plurality of contacts mounted on said carrier and spaced in said direction; d. engaging means for releasably engaging said contacts with said conductor in longitudinally spaced relationship, and for thereby maintaining a conductive connection between said contacts while said conductor moves in said path and said carrier moves in said direction jointly with said conductor; and e. resistance measuring means for measuring the resistance between two of said contacts while said two contacts move jointly with said carrier and said conductor.
Claim 9
Dependent Claim
20 words
Apparatus according to claim 6, further comprising temperature measuring means on said carrier for measuring the temperature of said conductor.
Claim 10
Dependent Claim
49 words
Apparatus according to claim 7, wherein said resistance measuring means and said temperature measuring means include means for generating an electrical resistance signal and an electrical temperature signal, and circuit means responsive to the generated signals to indicate a resistance at a reference temperature corresponding to the measured resistance.
Claim 11
Dependent Claim
47 words
Apparatus according to claim 6, wherein said engaging means include means for releasing the engaged contacts from said conductor, the apparatus further comprising moving means for moving said carrier in a direction opposite to the direction of conductor movement while said contacts are released from said conductor.
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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) | 1978-06-16 | 1978-12-16 | 1979-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-16 | 1982-12-16 | 1983-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-16 | 1986-12-16 | 1987-06-17 | $7700.00 | Window Closed / Lapsed |