US3247566A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Weft straightener
Assignee: BURKLUND LAB Inc
•
Filing: 1963-11-06
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Granted: 1966-04-26
•
Expires: 1983-11-06
Abstract
No abstract record available.
Inventors
- 👤 Glenn A Burklund
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:06
CPC Classifications
D; D06; D06H; D06H3/00; D06H3/12
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
135 words
IN APPARATUS FOR STRAIGHTENING THE WEFT OF A WOVEN MATERIAL AND SAID APPARATUS HAVING A COMPOSITE ROLLER DIVIDED INTO PLURAL SIDE-BY-SIDE ROTATABLE ROLLS SUPPORTED ON A COMMON SHAFT, AND HAVING MEANS FOR HOLDING THE MATERIAL IN SNUG ENGAGEMENT WITH SAID ROLLS AND HAVING A SOURCE OF POWER, THE IMPROVEMENT COMPRISING: (A) PLURAL REVERSIBLE TORQUE MOTOR MEANS SUPPORTED ON SAID SHAFT AND EACH MOTOR MEANS BEING COUPLED TO APPLY TORQUE TO ONE OF SAID ROLLS EITHER WITH OR AGAINST THE DIRECTION OF MOVEMENT OF SAID MATERIAL THROUGH THE APPARATUS; AND (B) PLURAL CONTROL MEANS EACH CONNECTED BETWEEN SAID SOURCE AND A DIFFERENT REVERSIBLE MOTOR MEANS AND OPERATIVE TO DELIVER POWER TO THE MOTOR MEANS TO CONTROL BOTH THE INSTANTANEOUS MAGNITUDE AND DIRECTION OF ITS TORQUE SEPARATELY FROM THE TORQUE OF ANY OTHER OF THE MOTOR MEANS.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-25 | 1969-10-25 | 1970-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-25 | 1973-10-25 | 1974-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-25 | 1977-10-25 | 1978-04-26 | $7700.00 | Window Closed / Lapsed |