US3304593A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Yarn bulking method and apparatus
Assignee: BURKLUND LAB Inc
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Filing: 1965-01-21
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Granted: 1967-02-21
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Expires: 1985-01-21
Abstract
No abstract record available.
Inventors
- 👤 Glenn A Burklund
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:23
CPC Classifications
D; D02; D02G; D02G1/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
APPARATUS FOR BULKING A YARN OF SYNTHETIC FIBERS, COMPRISING (A) A YARN CRIMPING HEAD; (B) MEANS FOR CONTINUOUSLY PASSING YARN OVER SAID HEAD AND FOR TENSIONING THE YARN THEREAGAINST; AND (C) MEANS FOR VIBRATING SAID HEAD AT A RATE WHICH IS AT LEAST SONIC AND IN A DIRECTION ALTERNATELY INCREASING AND DECREASING THE TENSION OF THE YARN PASSING THEREACROSS.
Claim 2
Dependent Claim
59 words
APPARATUS FOR BULKING A YARN OF SYNTHETIC FIBERS, COMPRISING (A) A YARN CRIMPING HEAD; (B) MEANS FOR CONTINUOUSLY PASSING YARN OVER SAID HEAD AND FOR TENSIONING THE YARN THEREAGAINST; AND (C) MEANS FOR VIBRATING SAID HEAD AT A RATE WHICH IS AT LEAST SONIC AND IN A DIRECTION ALTERNATELY INCREASING AND DECREASING THE TENSION OF THE YARN PASSING THEREACROSS.
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) | 1970-02-20 | 1970-08-22 | 1971-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-20 | 1974-08-22 | 1975-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-20 | 1978-08-22 | 1979-02-21 | $7700.00 | Window Closed / Lapsed |