US3146512A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crimping apparatus
Assignee: Akzona Inc
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Filing: 1961-05-24
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Granted: 1964-09-01
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Expires: 1981-05-24
Abstract
No abstract record available.
Inventors
- 👤 Heijnis James Watt Ijsbrand
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:30
CPC Classifications
D; D02; D02G; D02G1/00; D02G1/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
APPARATUS FOR CRIMPING THERMOPLASTIC YARN COMPRISING A PAIR OF MUTUALLY OPPOSED, COOPERATING STUFFING ROLLERS FOR FEEDING YARN, AN ELONGATED STUFFING BOX FOR RECEIVING YARN FROM SAID STUFFING ROLLERS AND FOR FORMING THE SAME INTO A WAD, MEANS FOR HEATING SAID WAD OF YARN TO SET CRIMPS FORMED THEREIN, AND AT LEAST ONE ROTATABLE YARN TRANSPORT WHEEL HAVING A CIRCUMFERENTIAL GROOVE FORMING AT LEAST ONE WALL OF SAID STUFFING BOX FOR TRANSPORTING SAID WAD THROUGH SAID HEATING DEVICE, SAID CIRCUMFERENTIAL GROOVE IN CROSS SECTION ENLARGING TOWARD THE CENTER OF SAID TRANSPORT WHEEL TO PREVENT RELEASE OF SAID WAD DURING TRANSPORT.
Claim 2
Dependent Claim
99 words
APPARATUS FOR CRIMPING THERMOPLASTIC YARN COMPRISING A PAIR OF MUTUALLY OPPOSED, COOPERATING STUFFING ROLLERS FOR FEEDING YARN, AN ELONGATED STUFFING BOX FOR RECEIVING YARN FROM SAID STUFFING ROLLERS AND FOR FORMING THE SAME INTO A WAD, MEANS FOR HEATING SAID WAD OF YARN TO SET CRIMPS FORMED THEREIN, AND AT LEAST ONE ROTATABLE YARN TRANSPORT WHEEL HAVING A CIRCUMFERENTIAL GROOVE FORMING AT LEAST ONE WALL OF SAID STUFFING BOX FOR TRANSPORTING SAID WAD THROUGH SAID HEATING DEVICE, SAID CIRCUMFERENTIAL GROOVE IN CROSS SECTION ENLARGING TOWARD THE CENTER OF SAID TRANSPORT WHEEL TO PREVENT RELEASE OF SAID WAD DURING TRANSPORT.
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) | 1967-09-01 | 1968-03-02 | 1968-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-01 | 1972-03-02 | 1972-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-01 | 1976-03-02 | 1976-09-01 | $7700.00 | Window Closed / Lapsed |