US3214331A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Double fabric paper press
Assignee: Huyck Corp
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Filing: 1963-03-14
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Granted: 1965-10-26
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Expires: 1983-03-14
Abstract
No abstract record available.
Inventors
- 👤 Dan B Wicker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:13
CPC Classifications
D; D21; D21F; D21F1/00; D21F1/0027; D21F1/0036; D21F3/00; D21F3/02; D21F3/029; D21F7/00; D21F7/08; D21F7/083
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
105 words
PAPERMAKERS WET FELT MEANS OR USE IN THE PRESS ROLL SECTION OF A PAPERMAKING MACHINE WHICH COMPRISES THE COMBINATION OF FIRST AND SECOND FELTS, SAID FIRST FELT RUNNING INSIDE SAID SECOND FELT AND BEING A DUPLEX FELT FORMED OF A FELTED FIRST FIRST LAYER WHICH HAS A RELATIVELY LOW VOID VOLUME AND IS COMPRESSIBLE AND A SECOND LAYER HAVING A RELATIVELY HIGH VOID VOLUME AND BEING LESS FELTED AND LESS COMPRESSIBLE THAN SAID FIRST LAYER, SAID SECOND LAYER OF SAID FIRST FELT RUNNING IN CONTACT WITH SAID SECOND FELT, SAID VOID VOLUMES OF FIRST AND SECOND LAYERS BEING HIGH OR LOW RELATIVE TO EACH OTHER
Claim 2
Dependent Claim
105 words
PAPERMAKERS WET FELT MEANS OR USE IN THE PRESS ROLL SECTION OF A PAPERMAKING MACHINE WHICH COMPRISES THE COMBINATION OF FIRST AND SECOND FELTS, SAID FIRST FELT RUNNING INSIDE SAID SECOND FELT AND BEING A DUPLEX FELT FORMED OF A FELTED FIRST FIRST LAYER WHICH HAS A RELATIVELY LOW VOID VOLUME AND IS COMPRESSIBLE AND A SECOND LAYER HAVING A RELATIVELY HIGH VOID VOLUME AND BEING LESS FELTED AND LESS COMPRESSIBLE THAN SAID FIRST LAYER, SAID SECOND LAYER OF SAID FIRST FELT RUNNING IN CONTACT WITH SAID SECOND FELT, SAID VOID VOLUMES OF FIRST AND SECOND LAYERS BEING HIGH OR LOW RELATIVE TO EACH OTHER
Claim 3
Dependent Claim
27 words
A DOUBLE FELT PRESS FOR REMOVING INCREASED AMOUNTS OF WATER FROM A WET WEB OF PAPER AND SIMILAR ABSORBENT STRUCTURES IN THE PAPERMAKING AND RELATED INDUSTRIES COM-
Claim 4
Dependent Claim
27 words
A DOUBLE FELT PRESS FOR REMOVING INCREASED AMOUNTS OF WATER FROM A WET WEB OF PAPER AND SIMILAR ABSORBENT STRUCTURES IN THE PAPERMAKING AND RELATED INDUSTRIES COM-
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-25 | 1969-04-26 | 1969-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-25 | 1973-04-26 | 1973-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-25 | 1977-04-26 | 1977-10-26 | $7700.00 | Window Closed / Lapsed |