Patent US3023141A successfully refreshed from Google Patents.
US3023141A
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US
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Method of forming a mineral wool pad
Assignee: Babcock and Wilcox Co
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Filing: 1955-12-30
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Granted: 1962-02-27
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Expires: 1975-12-30
Abstract
No abstract record available.
Inventors
- 👤 Frederick J Hartwig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:32
CPC Classifications
D; D04; D04H; D04H1/00; D04H1/04; C; C03; C03C; C03C25/00; C03C25/10; C03C25/12; C03C25/14; C03C25/24; C03C25/255; C04; C04B; C04B30/00; C04B30/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
THE METHOD OF FORMING A MINERAL WOOL PAD WHICH COMPRISES COATING MINERAL WOOL FIBERS WITH A LIQUID LUBRICANT CONSISTING OF PETROLEUM OIL AND WATER HELD IN A STABLE EMULSION BY A CATION-ACTIVE AGENT HAVING GOOD OIL DISPERSING PROPERTIES, PRESSURE COMPACTING A MASS OF RANDOM ORIENTED LUBRICATED FIBERS INTO AN INTERLOCKED FIBROUS PAD OF PREDETERMINED CROSS-SECTIONAL SHAPE, HEATING THE FIBERS WHILE HELD SO COMPACTED TO A TEMPERATURE SUFFICIENT TO BURN OFF SUBSTANTIALLY ALL OF THE OIL AND CATION-ACTIVE AGENT FROM THE FIBERS, AND THEREAFTER RELEASING THE COMPACTING PRESSURE FROM THE FIBERS TO PERMIT THE PAD TO RETAIN SUBSTANTIALLY ITS COMPACTED SHAPE SUBSTANTIALLY SOLELY BY THE PHYSICAL INTERLOCKING OF THE FIBERS.
Claim 2
Independent Claim
109 words
THE METHOD OF FORMING A MINERAL WOOL PAD WHICH COMPRISES COATING MINERAL WOOL FIBERS WITH A LIQUID LUBRICANT CONSISTING OF PETROLEUM OIL AND WATER HELD IN A STABLE EMULSION BY A CATION-ACTIVE AGENT HAVING GOOD OIL DISPERSING PROPERTIES, PRESSURE COMPACTING A MASS OF RANDOM ORIENTED LUBRICATED FIBERS INTO AN INTERLOCKED FIBROUS PAD OF PREDETERMINED CROSS-SECTIONAL SHAPE, HEATING THE FIBERS WHILE HELD SO COMPACTED TO A TEMPERATURE SUFFICIENT TO BURN OFF SUBSTANTIALLY ALL OF THE OIL AND CATION-ACTIVE AGENT FROM THE FIBERS, AND THEREAFTER RELEASING THE COMPACTING PRESSURE FROM THE FIBERS TO PERMIT THE PAD TO RETAIN SUBSTANTIALLY ITS COMPACTED SHAPE SUBSTANTIALLY SOLELY BY THE PHYSICAL INTERLOCKING OF THE FIBERS.
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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) | 1965-02-26 | 1965-08-28 | 1966-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-26 | 1969-08-28 | 1970-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-26 | 1973-08-28 | 1974-02-27 | $7700.00 | Window Closed / Lapsed |