Patent US3655709A successfully refreshed from Google Patents.
Patent US3256000A successfully refreshed from Google Patents.
US3256000A
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US
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Method of treating powder
Assignee: Union Tank Car Co
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Filing: 1964-04-22
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Granted: 1966-06-14
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Expires: 1984-04-22
Abstract
No abstract record available.
Inventors
- 👤 Jr Thomas W Howlett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:44
CPC Classifications
F; F17; F17C; F17C13/00; F17C13/001; F17C2203/00; F17C2203/03; F17C2203/0304; F17C2203/0337; F17C2203/06; F17C2203/0602; F17C2203/0612; F17C2203/0626; F17C2203/0629
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
A METHOD OF DECOMPACTING POWDERED INSULATION MATERIAL COMPACTED IN AN ENCLOSED SPACE, COMPRISING THE STEPS OF: CHARGING THE SPACE WITH GAS UNDER PRESSURE, HOLDING THE GAS IN SAID SPACE UNDER PRESSURE A SUFFICIENT TIME FOR THE GAS TO COMPLETELY PERMEATE THE POWDERED INSULATION MATERIAL, SUDDENLY RELIEVING THE PRESSURE IN THE SPACED WITHOUT LETTING MATERIAL ESCAPE FROM THE SPACE WHEREBY THE GAS MOLECULES UNIFORMLY FORCE PARTICLES OF POWDERED INSULATION MATERIAL FARTHER APART TO DECREASE THE DENSITY OF THE MATERIAL.
Claim 2
Independent Claim
78 words
A METHOD OF DECOMPACTING POWDERED INSULATION MATERIAL COMPACTED IN AN ENCLOSED SPACE, COMPRISING THE STEPS OF: CHARGING THE SPACE WITH GAS UNDER PRESSURE, HOLDING THE GAS IN SAID SPACE UNDER PRESSURE A SUFFICIENT TIME FOR THE GAS TO COMPLETELY PERMEATE THE POWDERED INSULATION MATERIAL, SUDDENLY RELIEVING THE PRESSURE IN THE SPACED WITHOUT LETTING MATERIAL ESCAPE FROM THE SPACE WHEREBY THE GAS MOLECULES UNIFORMLY FORCE PARTICLES OF POWDERED INSULATION MATERIAL FARTHER APART TO DECREASE THE DENSITY OF THE MATERIAL.
References Cited (Backward Citations)
US1442304A
Cited
US2999366A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-06-13 | 1969-12-13 | 1970-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-13 | 1973-12-13 | 1974-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-13 | 1977-12-13 | 1978-06-14 | $7700.00 | Window Closed / Lapsed |