US3300830A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for uniformly crimping filaments
Assignee: Celanese Corp
•
Filing: 1965-06-29
•
Granted: 1967-01-31
•
Expires: 1985-06-29
Abstract
No abstract record available.
Inventors
- 👤 Jr Elisha Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:20
CPC Classifications
D; D02; D02G; D02G1/00; D02G1/12; D02G1/125
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
150 words
AN APPARATUS FOR UNIFORMLY CRIMPING FILAMENTS WHICH COMPRISES: A CRIMPING CHAMBER, A PAIR OF FEED ROLLS AT ONE END OF SAID CRIMPING CHAMBER TO INITIATE THE FOLDING OF SAID FILAMENTS THROUGH SAID CRIMPING CHAMBER, A FLEXIBLE MOUNTED SETTING CHAMBER VERTICALLY MOVABLE AND SEPARATED FROM SAID CRIMPING CHAMBER, SAID SETTING CHAMBER LOCATED IN SUCH RELATONSHIP TO SAID CRIMPING CHAMBER TO RECEIVE THE PARTIALLY FOLDED FILAMENTS AT ONE END, FIXED COMPRESSION MEANS AT THE OTHER END OF SAID SETTING CHAMBER TO FOLD SAID FILAMENTS TIGHTLY AGAINST ONE ANOTHER, A WEIGHT SENSING DEVICE ATTACHED TO SAID FLEXIBLE MOUNTED SETTING CHAMBER, A POTENTIOMETER, MEANS ATTACHED TO SAID WEIGHT SENSING DEVICE AND SAID POTENTIOMETER TO TRANSFER CHANGES IN WEIGHT TO CHANGES IN ELECTRIC CURRENT, A TAKE-UP MECHANISM FOR WITHDRAWAL OF SAID FILAMENTS FROM SAID SETTING CHAMBER WHEREIN THE SPEED OF SAID TAKE-UP MECHANISM IS INSTANTANEOUSLY CONTROLLED BY SAID POTENTIOMETER THROUGH SAID MEANS ATTACHED TO SAID
Claim 2
Independent Claim
150 words
AN APPARATUS FOR UNIFORMLY CRIMPING FILAMENTS WHICH COMPRISES: A CRIMPING CHAMBER, A PAIR OF FEED ROLLS AT ONE END OF SAID CRIMPING CHAMBER TO INITIATE THE FOLDING OF SAID FILAMENTS THROUGH SAID CRIMPING CHAMBER, A FLEXIBLE MOUNTED SETTING CHAMBER VERTICALLY MOVABLE AND SEPARATED FROM SAID CRIMPING CHAMBER, SAID SETTING CHAMBER LOCATED IN SUCH RELATONSHIP TO SAID CRIMPING CHAMBER TO RECEIVE THE PARTIALLY FOLDED FILAMENTS AT ONE END, FIXED COMPRESSION MEANS AT THE OTHER END OF SAID SETTING CHAMBER TO FOLD SAID FILAMENTS TIGHTLY AGAINST ONE ANOTHER, A WEIGHT SENSING DEVICE ATTACHED TO SAID FLEXIBLE MOUNTED SETTING CHAMBER, A POTENTIOMETER, MEANS ATTACHED TO SAID WEIGHT SENSING DEVICE AND SAID POTENTIOMETER TO TRANSFER CHANGES IN WEIGHT TO CHANGES IN ELECTRIC CURRENT, A TAKE-UP MECHANISM FOR WITHDRAWAL OF SAID FILAMENTS FROM SAID SETTING CHAMBER WHEREIN THE SPEED OF SAID TAKE-UP MECHANISM IS INSTANTANEOUSLY CONTROLLED BY SAID POTENTIOMETER THROUGH SAID MEANS ATTACHED TO SAID
References Cited (Backward Citations)
US2805449A
Cited
US2914262A
Cited
US2740992A
Cited
US3153837A
Cited
US3151820A
Cited
GB964908A
Cited
US3174206A
Cited
US3205554A
Cited
US3166821A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-30 | 1970-08-01 | 1971-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-30 | 1974-08-01 | 1975-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-30 | 1978-08-01 | 1979-01-31 | $7700.00 | Window Closed / Lapsed |