Patent US3763899A successfully refreshed from Google Patents.
US3763899A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wire twisting device
Assignee: Cooper Industries LLC
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Filing: 1972-01-26
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Granted: 1973-10-09
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Expires: 1992-01-26
Abstract
Abstract A device for forming a twisted pair of wires comprises a rotatable supply spool mounted above a stationary supply spool with the rotatable spool having an axial opening for permitting the passage therethrough of the wire from the stationary spool to a take-up reel or cabling device. The rotatable supply spool is driven at a predetermined angular velocity relative to the rate of the take-up device to provide the desired degree of twist. Coaxially mounted above the upper flange of each spool is a round disk which is slightly larger than the flange and is rotatable to provide unwinding of the wire from the spool and around the flange in a substantially constant-tension manner. Each spool is also provided with a hub coaxially mounted above the disk and having resilient spokes extending radially therefrom to provide a substantially uniform tension.
Inventors
- 👤 J Orlandi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:27
CPC Classifications
D; D07; D07B; D07B7/00; D07B7/02; B; B21; B21F; B21F7/00; D07B3/00; D07B3/02; D07B3/04; D07B3/045
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
269 words
A device for forming a uniformly twisted pair of wires, comprising: a stationary supply spool for carrying a first one of said wires and having its central axis orientated in a substantially vertical position and also having a first upper wire-confining flange of a given diameter; a first round disc having a diameter greater than that of said first flange and rotatably mounted coaxially with said spool above said first flange, said first disc being engageable with said first wire to provide sole guidance there for to maintain said first wire in substantially constant tension as said first wire is drawn off of said stationary spool; a rotatable supply spool for carrying the second one of said wires and coaxially mounted above said stationary spool and having a second upper wire-confining flange of a given diameter, said rotatable spool further having an axial opening therethrough; a second round disc having an axial opening therethrough and being rotatably mounted coaxially with said rotatable spool above said second flange, said second disc having a diameter greater than that of said second flange and being engageable with said second wire to provide the sole guidance therefor to maintain said second wire in substantially constant tension as said second wire is drawn off of said rotatable supply spool; take-up means for receiving both said first wire from said stationary spool through said axial openings and said second wire from said rotatable spool at a predetermined rate; and means for driving said rotatable supply spool at a predetermined angular velocity relative to the rate of said take-up means to obtain a desired wire twist.
Claim 2
Independent Claim
269 words
A device for forming a uniformly twisted pair of wires, comprising: a stationary supply spool for carrying a first one of said wires and having its central axis orientated in a substantially vertical position and also having a first upper wire-confining flange of a given diameter; a first round disc having a diameter greater than that of said first flange and rotatably mounted coaxially with said spool above said first flange, said first disc being engageable with said first wire to provide sole guidance there for to maintain said first wire in substantially constant tension as said first wire is drawn off of said stationary spool; a rotatable supply spool for carrying the second one of said wires and coaxially mounted above said stationary spool and having a second upper wire-confining flange of a given diameter, said rotatable spool further having an axial opening therethrough; a second round disc having an axial opening therethrough and being rotatably mounted coaxially with said rotatable spool above said second flange, said second disc having a diameter greater than that of said second flange and being engageable with said second wire to provide the sole guidance therefor to maintain said second wire in substantially constant tension as said second wire is drawn off of said rotatable supply spool; take-up means for receiving both said first wire from said stationary spool through said axial openings and said second wire from said rotatable spool at a predetermined rate; and means for driving said rotatable supply spool at a predetermined angular velocity relative to the rate of said take-up means to obtain a desired wire twist.
Claim 3
Dependent Claim
90 words
A device according to claim 1, which further comprises a first hub having at least one resilient spoke extending radially therefrom and fixedly mounted coaxially with said stationary spool near said first round disk for adding a relatively uniform amount of tension to said first wire; and a second hub having an axial opening therethrough and at least one resilient spoke extending radially therefrom, said second hub fixedly mounted coaxially with said rotatable spool near said second disk for adding a relatively uniform amount of tension to said second wire.
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) | 1976-10-08 | 1977-04-09 | 1977-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-08 | 1981-04-09 | 1981-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-08 | 1985-04-09 | 1985-10-09 | $7700.00 | Window Closed / Lapsed |