US3344017A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of controlling drainage time of beater saturated slurries
Assignee: Armstrong World Industries Inc
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Filing: 1965-03-24
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Granted: 1967-09-26
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Expires: 1985-03-24
Abstract
No abstract record available.
Inventors
- 👤 John M Lesniak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:08
CPC Classifications
D; D21; D21H; D21H13/00; D21H13/36; D21H13/38; D21H13/42; D21H17/00; D21H17/20; D21H17/33; D21H17/34; D21H17/35; D21H17/63; D21H17/66; D21H23/00; D21H23/02; D21H23/04; D21H23/06; D21H23/08; D21H23/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
IN THE METHOD OF MAKING BEATER SATURATED PRODUCTS BY FORMING A SLURRY OF FIBES IN WATER, PRECIPITATING A RUBBER BINDER ON SAID FIBERS TO FORM COATED FIBERS, AND FORMING A PRODUCT FROM THE COATED FIBERS, THE IMPROVED METHOD OF CONTROLLING TH DRAINAGE TIME OF THE SLURRY OF COATED FIBERS WHICH COMPRISES ADDING TO SAID SLURRY OF COATED FIBERS A WATER-SOLUBLE SALT SELECTED FROM THE GROUP CONSISTING OF METALS IN GROUSP I, II, IV, VII, AND VIII OF THE PERIODIC TABLE, ADDING SUFFICIENT ALKALI TO THE SALTTREATED SLURRY TO ACHIEVE A PH IN THE RANGE OF 8.5-11.5 TO FORM AN INSOLUBLE HYDROXIDE WITH THE METAL ION FROM THE SALT, AND FORMING A PRODUCT FROM THE RESULTING SLURRY.
Claim 2
Dependent Claim
116 words
IN THE METHOD OF MAKING BEATER SATURATED PRODUCTS BY FORMING A SLURRY OF FIBES IN WATER, PRECIPITATING A RUBBER BINDER ON SAID FIBERS TO FORM COATED FIBERS, AND FORMING A PRODUCT FROM THE COATED FIBERS, THE IMPROVED METHOD OF CONTROLLING TH DRAINAGE TIME OF THE SLURRY OF COATED FIBERS WHICH COMPRISES ADDING TO SAID SLURRY OF COATED FIBERS A WATER-SOLUBLE SALT SELECTED FROM THE GROUP CONSISTING OF METALS IN GROUSP I, II, IV, VII, AND VIII OF THE PERIODIC TABLE, ADDING SUFFICIENT ALKALI TO THE SALTTREATED SLURRY TO ACHIEVE A PH IN THE RANGE OF 8.5-11.5 TO FORM AN INSOLUBLE HYDROXIDE WITH THE METAL ION FROM THE SALT, AND FORMING A PRODUCT FROM THE RESULTING SLURRY.
References Cited (Backward Citations)
US2375245A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-25 | 1971-03-27 | 1971-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-25 | 1975-03-27 | 1975-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-25 | 1979-03-27 | 1979-09-26 | $7700.00 | Window Closed / Lapsed |