US3093535A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of dewatering pulp webs
Assignee: Stiftelsen Pappersbrukens Forskningsinstitut
•
Filing: 1958-07-14
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Granted: 1963-06-11
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Expires: 1978-07-14
Abstract
No abstract record available.
Inventors
- 👤 Otto L J Brauns
- 👤 Lars B Jordansson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:46
CPC Classifications
D; D21; D21F; D21F3/00; D21F3/02; D21F3/029; Y; Y10; Y10S; Y10S162/00; Y10S162/07
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
A METHOD OF DEWATERING A WET OF MOISTE WEB OF PAPER OR A WEB OF OTHER ABSORBENT MATERIAL COMPRISING PASSING THE WEB THROUGH THE NIP OF A PAIR OF COOPERATING PRESS ROLLS TOGETHER WITH A WATER-RECEIVING MAT HAVING CAVITIES AT THE NIP OF THE ROLLS TO RECEIVE AND HOLD WATER SQUEEZED OUT OF THE WEB AT THE NIP OF THE PRESS ROLLS, ENTRAINING WATER PRESSED FROM THE WEB IN THE CAVITIES OF THE WATERRECEIVING MAT AFTER PASSAGE THROUGH THE NIP, MOVING THE WEB AND THE MAT CARRYING ENTRAINED WATER ALONG DIVERGENT
Claim 2
Independent Claim
91 words
A METHOD OF DEWATERING A WET OF MOISTE WEB OF PAPER OR A WEB OF OTHER ABSORBENT MATERIAL COMPRISING PASSING THE WEB THROUGH THE NIP OF A PAIR OF COOPERATING PRESS ROLLS TOGETHER WITH A WATER-RECEIVING MAT HAVING CAVITIES AT THE NIP OF THE ROLLS TO RECEIVE AND HOLD WATER SQUEEZED OUT OF THE WEB AT THE NIP OF THE PRESS ROLLS, ENTRAINING WATER PRESSED FROM THE WEB IN THE CAVITIES OF THE WATERRECEIVING MAT AFTER PASSAGE THROUGH THE NIP, MOVING THE WEB AND THE MAT CARRYING ENTRAINED WATER ALONG DIVERGENT
References Cited (Backward Citations)
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Cited
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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) | 1966-06-10 | 1966-12-10 | 1967-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-10 | 1970-12-10 | 1971-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-10 | 1974-12-10 | 1975-06-11 | $7700.00 | Window Closed / Lapsed |