US3253072A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of textile filaments
Assignee: Ernest Scragg and Sons Ltd
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Filing: 1963-03-11
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Granted: 1966-05-24
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Expires: 1983-03-11
Abstract
No abstract record available.
Inventors
- 👤 Scragg Frederick
- 👤 Alexander A Chubb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:58
CPC Classifications
D; D01; D01D; D01D5/00; D01D5/42; D01D5/423; Y; Y10; Y10S; Y10S264/00; Y10S264/47
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
133 words
A PROCESS FOR MANUFACTURING BRANCHED TEXTILE FILAMENTS, COMPRISING THE STEPS OF PIERCING A THERMOPLASTIC UNDRAWN SHEET ACCORDING TO A PREDETERMINED PATTERN PROVIDING LONGITUDINAL ROWS OF PIERCINGS IN SAID SHEET; DRAWING THE THUS-PIERCED SHEET IN AT LEAST ONE DIRECTION WHICH EXPANDS THE SHEET IN SAID DIRECTION AND WHICH ENLARGES SAID PIERCINGS TO FORM THEREFROM LONGITUDINAL ROWS OF OPENINGS EXTENDING ALONG SAID SHEET WITH CONTINUOUS, UNINTERRUPTED LONGITUDINAL SHEET PORTIONS EXTENDING LONGITUDINALLY OF SAID SHEET ROWS OF OPENINGS; AND THEN CUTTING THE THUS-DRAWN SHEET LONGITUDINALLY BETWEEN SAID CONTINUOUS UNINTERRUPTED SHEET PORTIONS THROUGH EACH OF SAID ROWS OF OPENINGS TO PROVIDE SEPARATE FILAMENTS HAVINGS TRUNKS FORMED BY SAID LONGITUDINAL, UNINTERRUPTED, CONTINUOUS SHEET PORTIONS AND BRANCHES EXTENDING LATERALLY FROM SAID TRUNK AND FORMED FROM THE PORTIONS OF SAID SHEET WHICH ARE LOCATED IN SAID ROWS BETWEEN SAID OPENINGS.
Claim 2
Dependent Claim
133 words
A PROCESS FOR MANUFACTURING BRANCHED TEXTILE FILAMENTS, COMPRISING THE STEPS OF PIERCING A THERMOPLASTIC UNDRAWN SHEET ACCORDING TO A PREDETERMINED PATTERN PROVIDING LONGITUDINAL ROWS OF PIERCINGS IN SAID SHEET; DRAWING THE THUS-PIERCED SHEET IN AT LEAST ONE DIRECTION WHICH EXPANDS THE SHEET IN SAID DIRECTION AND WHICH ENLARGES SAID PIERCINGS TO FORM THEREFROM LONGITUDINAL ROWS OF OPENINGS EXTENDING ALONG SAID SHEET WITH CONTINUOUS, UNINTERRUPTED LONGITUDINAL SHEET PORTIONS EXTENDING LONGITUDINALLY OF SAID SHEET ROWS OF OPENINGS; AND THEN CUTTING THE THUS-DRAWN SHEET LONGITUDINALLY BETWEEN SAID CONTINUOUS UNINTERRUPTED SHEET PORTIONS THROUGH EACH OF SAID ROWS OF OPENINGS TO PROVIDE SEPARATE FILAMENTS HAVINGS TRUNKS FORMED BY SAID LONGITUDINAL, UNINTERRUPTED, CONTINUOUS SHEET PORTIONS AND BRANCHES EXTENDING LATERALLY FROM SAID TRUNK AND FORMED FROM THE PORTIONS OF SAID SHEET WHICH ARE LOCATED IN SAID ROWS BETWEEN SAID OPENINGS.
Claim 3
Dependent Claim
114 words
APPARATUS FOR MANUFACTURING BRANCHED TEXTILE FILAMENTS COMPRISING, IN COMBINATION, PIERCING MEANS FOR PIERCING AN ELONGATED THERMOPLASTIC UNDRAWN SHEET ACCORDING TO A PREDETERMINED PATTERN PROVIDING THE SHEET WITH LONGITUDINAL ROWS OF PIERCINGS; DRAWING MEANS DRAWING THE SHEET FROM SAID PIERCING MEANS TO LONGITUDINALLY DRAW THE SHEET AND TO EXTEND EACH PIERCING; EXPANDING MEANS LATERALLY EXPANDING THE DRAWN SHEET AFTER IT PROGRESSES BEYOND SAID DRAWING MEANS AND LATERALLY EXPANDING EACH PIERCING; AND CUTTING MEANS CUTTING THE SHEET AT A PORTION THEREOF LOCATED BEYOND SAID EXPANDING MEANS, SAID CUTTING MEANS COMPRISING A PLURALITY OF CUTTERS EACH CUTTER BEING LOCATED TO CUT THROUGH ONE OF THE ROWS OF PIERCINGS AFTER THE SHEET HAS PROGRESSED BEYOND SAID EXPANDING MEANS.
Claim 4
Dependent Claim
114 words
APPARATUS FOR MANUFACTURING BRANCHED TEXTILE FILAMENTS COMPRISING, IN COMBINATION, PIERCING MEANS FOR PIERCING AN ELONGATED THERMOPLASTIC UNDRAWN SHEET ACCORDING TO A PREDETERMINED PATTERN PROVIDING THE SHEET WITH LONGITUDINAL ROWS OF PIERCINGS; DRAWING MEANS DRAWING THE SHEET FROM SAID PIERCING MEANS TO LONGITUDINALLY DRAW THE SHEET AND TO EXTEND EACH PIERCING; EXPANDING MEANS LATERALLY EXPANDING THE DRAWN SHEET AFTER IT PROGRESSES BEYOND SAID DRAWING MEANS AND LATERALLY EXPANDING EACH PIERCING; AND CUTTING MEANS CUTTING THE SHEET AT A PORTION THEREOF LOCATED BEYOND SAID EXPANDING MEANS, SAID CUTTING MEANS COMPRISING A PLURALITY OF CUTTERS EACH CUTTER BEING LOCATED TO CUT THROUGH ONE OF THE ROWS OF PIERCINGS AFTER THE SHEET HAS PROGRESSED BEYOND SAID EXPANDING MEANS.
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) | 1969-05-23 | 1969-11-22 | 1970-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-23 | 1973-11-22 | 1974-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-23 | 1977-11-22 | 1978-05-24 | $7700.00 | Window Closed / Lapsed |