US3882907A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Twisted conductor fabrication
Assignee: Telent Technologies Services Ltd
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Filing: 1973-06-18
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Granted: 1975-05-13
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Expires: 1993-06-18
Abstract
Abstract Apparatus for twisting a pair of wires together in such a manner that a plurality of continuous randomly disposed non-repetitive and non-duplicating twists are distributed over the entire length of the twisted pair and each twist length is other than an odd multiple of the adjacent twist lengths.
Inventors
- 👤 Donald S Degen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:25
CPC Classifications
H; H01; H01B; H01B13/00; H01B13/02; H01B13/0214; B; B21; B21F; B21F7/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
167 words
In a method of forming a pair of twisted conductors comprising the steps of: drawing the conductors through a twisting mechanism under the control of a drawing mechanism operating at a first speed, which is dependent upon the magnitudes of signals applied to an input of the drawing mechanism and being arranged to draw the wires at the first speed; operating the twisting mechanism at a second speed, which is substantially constant, to twist the conductors around each other; successively providing individual values of drawing speed selected at random from a set of unique and permissible drawing speeds; converting the selected individual values of drawing speed to signals which are representative of the selected individual values, and applying the signals representative of the successively provided values to the input, the improvement comprising the step of: providing the individual values of drawing speed so that each value of drawing speed is other than an odd multiple of the immediately preceding and the immediately succeeding values of drawing speed.
Claim 2
Dependent Claim
167 words
In a method of forming a pair of twisted conductors comprising the steps of: drawing the conductors through a twisting mechanism under the control of a drawing mechanism operating at a first speed, which is dependent upon the magnitudes of signals applied to an input of the drawing mechanism and being arranged to draw the wires at the first speed; operating the twisting mechanism at a second speed, which is substantially constant, to twist the conductors around each other; successively providing individual values of drawing speed selected at random from a set of unique and permissible drawing speeds; converting the selected individual values of drawing speed to signals which are representative of the selected individual values, and applying the signals representative of the successively provided values to the input, the improvement comprising the step of: providing the individual values of drawing speed so that each value of drawing speed is other than an odd multiple of the immediately preceding and the immediately succeeding values of drawing speed.
Claim 3
Dependent Claim
56 words
A method as claimed in claim 1 wherein the drawing mechanism comprises a capstan around which twisted conductor portions are wound and a variable speed motor which is arranged to rotate the capstan and to be energized by electrical signals applied to the input, and the signals representative of the successively provided values comprise electrical signals.
Claim 4
Dependent Claim
118 words
A method as claimed in claim 1 further comprising the steps of: successively detecting the speeds of rotation of the variable speed motor and generating electrical signals representative thereof; successively comparing the electrical signals which are representative of the successively provided values with the electrical signals representative of the speeds of rotation; generating a difference signal representative of the actual difference between the electrical signals which are representative of the successively provided values and the electrical signals representative of the actual speeds of rotation, and applying the difference signal to the input of the variable speed motor to adjust the speed of rotation of the variable speed motor from one selected value to the next successively selected value.
References Cited (Backward Citations)
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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) | 1978-05-12 | 1978-11-11 | 1979-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-12 | 1982-11-11 | 1983-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-12 | 1986-11-11 | 1987-05-13 | $7700.00 | Window Closed / Lapsed |