Patent US2595831A successfully refreshed from Google Patents.
US2595831A
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US
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Process for disintegrating conglomerates of polymer particles
Assignee: Shell Development Co
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Filing: 1948-09-16
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Granted: 1952-05-06
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Expires: 1968-09-16
Abstract
No abstract record available.
Inventors
- 👤 Nie Willem Leendert Johanne De
- 👤 Meijer Rudolf Herman Mettivier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:54
CPC Classifications
B; B29; B29B; B29B13/00; B29B13/10; B29B13/06; B29B13/065; C; C08; C08J; C08J3/00; C08J2327/00; C08J2327/02; C08J2327/04; C08J2327/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
A PROCESS FOR THE DISINTEGRATION OF LIQUIDCONTAINING CONGLOMERATES OF POLYVINYLIDENE CHLORIDE PATICLES WHICH COMPRISED INTRODUCING THE SAID CONGLOMERATES INTO A ROTATING DRUM EQUIPPED WITH A SLIGHTLY INCLINED SHAFT AND HAVING RADIAL VANES ATTACHED TO THE INNER WALL, SIMULTANEOUSLY PASING A CURRENT OF AIR AT 80* C. OVER THE MIXTURE IN THE DRUM, AND WITHDRAWING THE AIR CONTAINING THE SUSPENDED POLYMER PARTICLES TO A SETTLING CHAMBER WHERE THE PARTICLES ARE ALLOWED TO SETTLE TO THE BOTTOM AND ARE COLLECTED AS A FINELY DIVIDIED, DRY POWDER.
Claim 2
Dependent Claim
84 words
A PROCESS FOR THE DISINTEGRATION OF LIQUIDCONTAINING CONGLOMERATES OF POLYVINYLIDENE CHLORIDE PATICLES WHICH COMPRISED INTRODUCING THE SAID CONGLOMERATES INTO A ROTATING DRUM EQUIPPED WITH A SLIGHTLY INCLINED SHAFT AND HAVING RADIAL VANES ATTACHED TO THE INNER WALL, SIMULTANEOUSLY PASING A CURRENT OF AIR AT 80* C. OVER THE MIXTURE IN THE DRUM, AND WITHDRAWING THE AIR CONTAINING THE SUSPENDED POLYMER PARTICLES TO A SETTLING CHAMBER WHERE THE PARTICLES ARE ALLOWED TO SETTLE TO THE BOTTOM AND ARE COLLECTED AS A FINELY DIVIDIED, DRY POWDER.
References Cited (Backward Citations)
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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) | 1955-05-06 | 1955-11-05 | 1956-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-06 | 1959-11-05 | 1960-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-06 | 1963-11-05 | 1964-05-06 | $7700.00 | Window Closed / Lapsed |