US3235910A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods and apparatus for improving the quality of carded fibrous materials
Assignee: Johnson and Johnson
•
Filing: 1963-04-04
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Granted: 1966-02-22
•
Expires: 1983-04-04
Abstract
No abstract record available.
Inventors
- 👤 Kalwaites Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:00
CPC Classifications
D; D01; D01G; D01G15/00; D01G15/02; D01G15/12; D01G15/40
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
IN APPARATUS FOR IMPROVING THE QUALITY OF CARDED FIBROUS MATERIALS WHICH COMPRISES A ROTATABLE FEEDING SURFACE FOR ADVANCING FIBROUS MATERIALS, A ROTATABLE CLEANING SURFACE FOR RECEIVING FIBROUS MATERIALS FROM SAID ROTATABLE FEEDING SURFACE TO OPEN UP THE SAME AND INDIVIDUALIZE THE FIBERS THEREOF, AND A ROTATABLE CARDING SURFACE FOR RECEIVING SAID FIBROUS MATERIALS FROM SAID ROTATABLE CLEANING SURFACE TO CARD THE SAME, THE IMPROVEMENT WHICH COMPRISES: A ROTATABLE SURFACE IMMEDIATELY ADJACENT SAID ROTATABLE CARDING SURFACE AND TRAVELING AT A PERIPHERAL SURFACE LINEAR SPEED LESS THAN THAT OF SAID ROTATABLE CARDING SURFACE FOR WITHDRAWING A PORTION OF SAID FIBROUS MATERIAL FROM SAID ROTATABLE CARDING SURFACE; A SECOND ROTATABLE SURFACE IMMEDIATELY ADJACENT SAID FIRST-MENTIONED ROTATABLE SURFACE AND TRAVELING AT A PERIPHERAL SURFACE LINERAR SPEED LESS THAN THAT OF SAID FIRST-MENTIONED ROTATABLE SURFACE FOR WITHDRAWING SAID PORTION OF SAID FIBROUS MATERIALS FROM SAID ROTATABLE SURFACE; AND
Claim 2
Dependent Claim
143 words
IN APPARATUS FOR IMPROVING THE QUALITY OF CARDED FIBROUS MATERIALS WHICH COMPRISES A ROTATABLE FEEDING SURFACE FOR ADVANCING FIBROUS MATERIALS, A ROTATABLE CLEANING SURFACE FOR RECEIVING FIBROUS MATERIALS FROM SAID ROTATABLE FEEDING SURFACE TO OPEN UP THE SAME AND INDIVIDUALIZE THE FIBERS THEREOF, AND A ROTATABLE CARDING SURFACE FOR RECEIVING SAID FIBROUS MATERIALS FROM SAID ROTATABLE CLEANING SURFACE TO CARD THE SAME, THE IMPROVEMENT WHICH COMPRISES: A ROTATABLE SURFACE IMMEDIATELY ADJACENT SAID ROTATABLE CARDING SURFACE AND TRAVELING AT A PERIPHERAL SURFACE LINEAR SPEED LESS THAN THAT OF SAID ROTATABLE CARDING SURFACE FOR WITHDRAWING A PORTION OF SAID FIBROUS MATERIAL FROM SAID ROTATABLE CARDING SURFACE; A SECOND ROTATABLE SURFACE IMMEDIATELY ADJACENT SAID FIRST-MENTIONED ROTATABLE SURFACE AND TRAVELING AT A PERIPHERAL SURFACE LINERAR SPEED LESS THAN THAT OF SAID FIRST-MENTIONED ROTATABLE SURFACE FOR WITHDRAWING SAID PORTION OF SAID FIBROUS MATERIALS FROM SAID ROTATABLE SURFACE; AND
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US2627631A
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US2949645A
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US2987779A
Cited
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Cited
US3077641A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-21 | 1969-08-23 | 1970-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-21 | 1973-08-23 | 1974-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-21 | 1977-08-23 | 1978-02-22 | $7700.00 | Window Closed / Lapsed |