US3228067A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for carding fiber by fluid means
Assignee: Individual
•
Filing: 1962-12-20
•
Granted: 1966-01-11
•
Expires: 1982-12-20
Abstract
No abstract record available.
Inventors
- 👤 Peter M Strang
- 👤 Brandon G Rightmire
- 👤 Johnson E Vivian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:00
CPC Classifications
D; D01; D01G; D01G15/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
138 words
THAT METHOD OF CARDING FIBROUS MATERIAL THEREBY TO SEPARATE AND STRAIGHTEN INDIVIDUAL FIBERS AND TO DISPOSE THEM IN PREDOMINANTLY PARALLEL RELATION WHICH COMPRISES AS STEPS; SUSPENDING THE FIBROUS MATERIAL IN A BODY OF LIQUID, DELIVERING THE LIQUID WITH THE SUSPENDED FIBROUS MATERIAL THEREIN INTO THE WIDE ENTRANCE END OF A CONVERGING CHANNEL, DEFINED BY OPPOSED SPACED WALLS, ONE OF SAID WALLS BEING FIXED AND THE OTHER WALL MOVING IN THE DIRECTION OF THE FLOW OF LIQUID IN THE CHANNEL, THEREBY SEPARATING AND STRAIGHTENING THE INDIVIDUAL FIBERS AND PLACING THEM IN PREDOMINANTLY PARALLEL RELATION, AND DISCHARGING FROM THE NARROW DELIVERY END OF THE CHANNEL SUBSTANTIALLY THE SAME QUANTITY OF LIQUID PER UNIT OF TIME AS IS RECEIVED AT THE ENTRANCE END OF THE CHANNEL TOGETHER WITH THE NOW PREDOMINANTLY PARALLEL FIBERS, AND THEREAFTER SEPARATING THE FIBERS FROM THE LIQUID.
Claim 2
Dependent Claim
138 words
THAT METHOD OF CARDING FIBROUS MATERIAL THEREBY TO SEPARATE AND STRAIGHTEN INDIVIDUAL FIBERS AND TO DISPOSE THEM IN PREDOMINANTLY PARALLEL RELATION WHICH COMPRISES AS STEPS; SUSPENDING THE FIBROUS MATERIAL IN A BODY OF LIQUID, DELIVERING THE LIQUID WITH THE SUSPENDED FIBROUS MATERIAL THEREIN INTO THE WIDE ENTRANCE END OF A CONVERGING CHANNEL, DEFINED BY OPPOSED SPACED WALLS, ONE OF SAID WALLS BEING FIXED AND THE OTHER WALL MOVING IN THE DIRECTION OF THE FLOW OF LIQUID IN THE CHANNEL, THEREBY SEPARATING AND STRAIGHTENING THE INDIVIDUAL FIBERS AND PLACING THEM IN PREDOMINANTLY PARALLEL RELATION, AND DISCHARGING FROM THE NARROW DELIVERY END OF THE CHANNEL SUBSTANTIALLY THE SAME QUANTITY OF LIQUID PER UNIT OF TIME AS IS RECEIVED AT THE ENTRANCE END OF THE CHANNEL TOGETHER WITH THE NOW PREDOMINANTLY PARALLEL FIBERS, AND THEREAFTER SEPARATING THE FIBERS FROM THE LIQUID.
References Cited (Backward Citations)
US1708724A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-10 | 1969-07-12 | 1970-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-10 | 1973-07-12 | 1974-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-10 | 1977-07-12 | 1978-01-11 | $7700.00 | Window Closed / Lapsed |