Patent US3255507A successfully refreshed from Google Patents.
US3255507A
Expired / Lapsed
US
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Crimping apparatus
Assignee: EIDP Inc
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Filing: 1964-01-28
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Granted: 1966-06-14
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Expires: 1984-01-28
Abstract
No abstract record available.
Inventors
- 👤 Mccaskill William Brand
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:00
CPC Classifications
D; D02; D02G; D02G1/00; D02G1/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
A CRIMPER FOR SYNTHETIC TEXTILE TOW, COMPRISING IN COMBINATION A STUFFING BOX AND A PAIR OF OPPOSITLY REVOLVING CYLINDRICAL FEED ROLLS IN PARALLEL ALIGNMENT AND IN NEAR CONTACT WITH EACH OTHER, WHEREBY TO SQUEEZE INTO THE STUFFING BOX, A CONTINUOUS TEXTILE TOW WHEN ONE IS PASSED THROUGH THE NIP THEREBETWEEN, AT LEAST ONE OF SAID ROLLS BEING SHAPED ALONG ITS OUTER, CYLINDRICAL SURFACE TO BE SLIGHTLY THINNER IN THE MIDPORTIONS THEREOF COMPARED TO ITS EXTREME EDGES, WHEREBY TO PROVIDE A GAP BETWEEN THE ROLLS WHOSE WIDTH IS NARROWER AT ITS ENDS THAN IN THE MIDREGIONS THEREOF.
Claim 2
Dependent Claim
96 words
A CRIMPER FOR SYNTHETIC TEXTILE TOW, COMPRISING IN COMBINATION A STUFFING BOX AND A PAIR OF OPPOSITLY REVOLVING CYLINDRICAL FEED ROLLS IN PARALLEL ALIGNMENT AND IN NEAR CONTACT WITH EACH OTHER, WHEREBY TO SQUEEZE INTO THE STUFFING BOX, A CONTINUOUS TEXTILE TOW WHEN ONE IS PASSED THROUGH THE NIP THEREBETWEEN, AT LEAST ONE OF SAID ROLLS BEING SHAPED ALONG ITS OUTER, CYLINDRICAL SURFACE TO BE SLIGHTLY THINNER IN THE MIDPORTIONS THEREOF COMPARED TO ITS EXTREME EDGES, WHEREBY TO PROVIDE A GAP BETWEEN THE ROLLS WHOSE WIDTH IS NARROWER AT ITS ENDS THAN IN THE MIDREGIONS THEREOF.
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) | 1969-06-13 | 1969-12-13 | 1970-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-13 | 1973-12-13 | 1974-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-13 | 1977-12-13 | 1978-06-14 | $7700.00 | Window Closed / Lapsed |