US2951007A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and device for regulating the moisture content of endless moving webs of fibrous material
Assignee: Individual
•
Filing: 1957-06-06
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Granted: 1960-08-30
•
Expires: 1977-06-06
Abstract
No abstract record available.
Inventors
- 👤 Paul R Lippke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:06
CPC Classifications
D; D21; D21F; D21F9/00; D21F9/02; Y; Y10; Y10S; Y10S162/00; Y10S162/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
171 words
THE METHOD OF MAKING A WEB OF MATERIAL AND REGULATING THE LIQUID CONTENT AND BASIS WEIGHT THEREOF WHICH COMPRISES FORMING A LIQUID SLURRY OF THE MATERIAL INTO A SHEET BY PASSING SLURRY THEREOF THROUGH AN ELONGATED SLIT, PASSING THE SHEET ALONG AN ELONGATED COURSE, EVAPORATING LIQUID FROM THE SHEET AS IT TRAVERSES SAID COURSE, SUCCESSIVELY SENSING LIQUID CONTENT OF THE WEB AT POINTS DISPOSED ALONG A PATH EXTENDING ACROSS SAID COURSE AND DEPENDING UPON THE AMOUNT OF LIQUID SENSED AT SAID POINTS SIMULTANEOUSLY APPLYING LIQUID IN VARYING AMOUNTS ACROSS THE WIDTH OF THE WEB AND VARYING OPENING SIZE ALONG SAID SLIT TO IMPROVE UNIFORMITY OF THE WEB WITH RESPECT TO LIQUID CONTENT AND BASIS WEIGHT, THE SLIT OPENING AND AMOUNT OF LIQUID APPLIED WHEN A LIQUID DEFICIENCY IS SENSED, EACH SIMULTANEOUSLY BEING INCREASED AT CORRESPONDING POINTS ALONG THE SLIT AND ACROSS THE WEB, RESPECTIVELY AND WHEN A LIQUID EXCESS IS SENSED EACH SIMULTANEOUSLY BEING DECREASED AT CORRESPONDING POINTS ALONG THE SLIT AND ACROSS THE WEB, RESPECTIVELY, TO REALIZE SAID IMPROVED UNIFORMITY.
Claim 2
Independent Claim
171 words
THE METHOD OF MAKING A WEB OF MATERIAL AND REGULATING THE LIQUID CONTENT AND BASIS WEIGHT THEREOF WHICH COMPRISES FORMING A LIQUID SLURRY OF THE MATERIAL INTO A SHEET BY PASSING SLURRY THEREOF THROUGH AN ELONGATED SLIT, PASSING THE SHEET ALONG AN ELONGATED COURSE, EVAPORATING LIQUID FROM THE SHEET AS IT TRAVERSES SAID COURSE, SUCCESSIVELY SENSING LIQUID CONTENT OF THE WEB AT POINTS DISPOSED ALONG A PATH EXTENDING ACROSS SAID COURSE AND DEPENDING UPON THE AMOUNT OF LIQUID SENSED AT SAID POINTS SIMULTANEOUSLY APPLYING LIQUID IN VARYING AMOUNTS ACROSS THE WIDTH OF THE WEB AND VARYING OPENING SIZE ALONG SAID SLIT TO IMPROVE UNIFORMITY OF THE WEB WITH RESPECT TO LIQUID CONTENT AND BASIS WEIGHT, THE SLIT OPENING AND AMOUNT OF LIQUID APPLIED WHEN A LIQUID DEFICIENCY IS SENSED, EACH SIMULTANEOUSLY BEING INCREASED AT CORRESPONDING POINTS ALONG THE SLIT AND ACROSS THE WEB, RESPECTIVELY AND WHEN A LIQUID EXCESS IS SENSED EACH SIMULTANEOUSLY BEING DECREASED AT CORRESPONDING POINTS ALONG THE SLIT AND ACROSS THE WEB, RESPECTIVELY, TO REALIZE SAID IMPROVED UNIFORMITY.
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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) | 1963-08-30 | 1964-02-29 | 1964-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-30 | 1968-02-29 | 1968-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-30 | 1972-02-29 | 1972-08-30 | $7700.00 | Window Closed / Lapsed |