Patent US3673785A successfully refreshed from Google Patents.
US3673785A
Expired / Lapsed
US
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Method for wire-wrapping pipe
Assignee: Jones and Laughlin Steel Inc
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Filing: 1969-11-07
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Granted: 1972-07-04
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Expires: 1989-11-07
Abstract
Abstract This patent discloses a method for wrapping a plurality of wires about an elongate member in a planetary lay. In one method the wires are permitted to turn as they are applied to obtain the planetary lay. In the other method the wires are pre-twisted and are held against rotation as they are applied so that they will untwist during application and provide a planetary lay.
Inventors
- 👤 Roy H Cullen
- 👤 Charles H Elliott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:19
CPC Classifications
B; B65; B65H; B65H81/00; B65H81/06; B65H81/08
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
129 words
A methoD of wrapping a plurality of wires on an elongate member comprising, securing one end of each wire in proximity to one end of an elongate member, positioning the wires substantially longitudinally with respect to the elongate member and pre-twisting said wires about their longitudinal axes, applying tension to the other end of each wire while holding the other end of each wire against rotation about its longitudinal axis, relatively rotating the elongate member and wires and helically wrapping the wires on the elongate member; said wires untwisting as they wrap about the elongate member and returning to substantially their axial orientation prior to being pre-twisted; and moving the other ends of the wires toward said secured ends during said wrapping step while continuing to apply said tension.
Claim 2
Independent Claim
129 words
A methoD of wrapping a plurality of wires on an elongate member comprising, securing one end of each wire in proximity to one end of an elongate member, positioning the wires substantially longitudinally with respect to the elongate member and pre-twisting said wires about their longitudinal axes, applying tension to the other end of each wire while holding the other end of each wire against rotation about its longitudinal axis, relatively rotating the elongate member and wires and helically wrapping the wires on the elongate member; said wires untwisting as they wrap about the elongate member and returning to substantially their axial orientation prior to being pre-twisted; and moving the other ends of the wires toward said secured ends during said wrapping step while continuing to apply said tension.
Claim 3
Dependent Claim
27 words
The method of claim 1 wherein each of said wires is pre-twisted approximately 360* for each length of wire corresponding to each pitch of the wrapped wire.
Claim 4
Dependent Claim
29 words
The method of claim 1 wherein each of said wires is pre-twisted more than 360* for each length of the wires corresponding to each pitch of the wrapped wire.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-07-04 | 1976-01-03 | 1976-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-04 | 1980-01-03 | 1980-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-04 | 1984-01-03 | 1984-07-04 | $7700.00 | Window Closed / Lapsed |