Patent US3197259A successfully refreshed from Google Patents.
US3197259A
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US
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Pneumatic conveyor apparatus having a pressure container for pulverulent or granularmaterial
Assignee: Individual
•
Filing: 1962-12-14
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Granted: 1965-07-27
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Expires: 1982-12-14
Abstract
No abstract record available.
Inventors
- 👤 Braun-Angott Heinrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 04:53
CPC Classifications
B; B65; B65G; B65G53/00; B65G53/04; B65G53/06; B65G53/10; B65G53/12; B65D; B65D88/00; B65D88/54; B65D88/64; B65D88/70; B65D88/72
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
PNEUMATIC COVEYOR APPARATUS COMPRISING, IN COMBINATION, A PRESSURE CONTAINER FOR PULVERULENT GRANULAR MATERIAL, SAID CONTAINER HAVING A DOWNWARDLY TAPERING CONICAL PART; A CONICAL ELASTIC LINING IN SAID CONICAL PART OF SAID PRESSURE CONTAINKER AND ATTACHED AT ITS UPPER EDGE THEREOF TO THE END OF SAID CONICAL PART AND BEING SLIGHTLY SPACED OVER A MAJOR PORTION THEREOF FROM THE INNER SURFACE AND THE INNER SURFACE OF SAID CONICAL A SPACE BETWEEN ITSELF AND THE INNER SURFACE OF SAID CONICAL PART; PARTITION MEANS SUBDIVIDING SAID SPACE INTO A PUL-
Claim 2
Dependent Claim
87 words
PNEUMATIC COVEYOR APPARATUS COMPRISING, IN COMBINATION, A PRESSURE CONTAINER FOR PULVERULENT GRANULAR MATERIAL, SAID CONTAINER HAVING A DOWNWARDLY TAPERING CONICAL PART; A CONICAL ELASTIC LINING IN SAID CONICAL PART OF SAID PRESSURE CONTAINKER AND ATTACHED AT ITS UPPER EDGE THEREOF TO THE END OF SAID CONICAL PART AND BEING SLIGHTLY SPACED OVER A MAJOR PORTION THEREOF FROM THE INNER SURFACE AND THE INNER SURFACE OF SAID CONICAL A SPACE BETWEEN ITSELF AND THE INNER SURFACE OF SAID CONICAL PART; PARTITION MEANS SUBDIVIDING SAID SPACE INTO A PUL-
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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) | 1968-07-26 | 1969-01-25 | 1969-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-26 | 1973-01-25 | 1973-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-26 | 1977-01-25 | 1977-07-27 | $7700.00 | Window Closed / Lapsed |