Patent US3087538A successfully refreshed from Google Patents.
US3087538A
Expired / Lapsed
US
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Apparatus for extracting liquid from a fiber formation
Assignee: Individual
•
Filing: 1960-04-15
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Granted: 1963-04-30
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Expires: 1980-04-15
Abstract
No abstract record available.
Inventors
- 👤 Jr Ralph M Newman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:52
CPC Classifications
D; D21; D21F; D21F3/00; D21F3/02; D21F3/0272
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
APPARATUS FOR EXTRACTING LIQUID FROM A FIBER FORMATION ON A FOURDRINIER WIRE COMPRISING A PAIR OF SPACED ROLLS; AN ENDLESS, POROUS, FLEXIBLE BELT EXTENDING ACROSS THE WIDTH OF THE WIRE AND SUPPORTING THE WIRE FROM ONE SIDE THEREOF, SAID BELT BEING TRAINED ABOUT SAID ROLLS; MEANS FOR TENSIONING SAID BELT; A PERVIOUS PRESSURE ROLL INTERMEDIATE SAID SPACED ROLLS ENGAGING THE FORMATION ON THE OTHER SIDE OF THE WIRE; AND MEANS FOR DEVELOPING A PRESSURE DIFFERENTIAL ACROSS THE FORMATION.
Claim 2
Dependent Claim
78 words
APPARATUS FOR EXTRACTING LIQUID FROM A FIBER FORMATION ON A FOURDRINIER WIRE COMPRISING A PAIR OF SPACED ROLLS; AN ENDLESS, POROUS, FLEXIBLE BELT EXTENDING ACROSS THE WIDTH OF THE WIRE AND SUPPORTING THE WIRE FROM ONE SIDE THEREOF, SAID BELT BEING TRAINED ABOUT SAID ROLLS; MEANS FOR TENSIONING SAID BELT; A PERVIOUS PRESSURE ROLL INTERMEDIATE SAID SPACED ROLLS ENGAGING THE FORMATION ON THE OTHER SIDE OF THE WIRE; AND MEANS FOR DEVELOPING A PRESSURE DIFFERENTIAL ACROSS THE FORMATION.
References Cited (Backward Citations)
US747029A
Cited
US1718573A
Cited
US1959520A
Cited
US2601378A
Cited
US2780968A
Cited
US2717540A
Cited
FR1121417A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-29 | 1966-10-29 | 1967-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-29 | 1970-10-29 | 1971-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-29 | 1974-10-29 | 1975-04-30 | $7700.00 | Window Closed / Lapsed |