US3223288A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Handling of granular material
Assignee: Individual
•
Filing: 1964-06-16
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Granted: 1965-12-14
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Expires: 1984-06-16
Abstract
No abstract record available.
Inventors
- 👤 Stern Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:41
CPC Classifications
B; B65; B65G; B65G53/00; B65G53/34; B65G53/40; B65G53/46; B65G53/4608; B65G53/4625; B65G53/4633
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
APPARATUS FOR HANDLING GRANULAR MATERIAL COMPRISING A CASING; A MATERIAL INLET INTO THE CASING; A MATERIAL OUTLET FROM THE CASING SPACED FROM THE INLET; A ROTOR ROTATABLY LOCATED WITHIN THE CASING, THE ROTOR COMPRISING A HOLLOW RESERVOIR FOR FLUID UNDER PRESSURE, A FLUID INLET INTO THE RESERVOIR, A PLURALITY OF CIRCUMFERENTIALLY SPACED VANES EXTENDING RADIALLY FROM THE RESERVOIR TOWARDS SAID CASING WITH EACH PAIR OF ADJACENT VANES FORMING A POCKET FOR TRANSFERRING MATERIAL FROM THE INLET TO THE OUTLET, EACH VANES PRESENTING A TIP SURFACE DISPOSED IN OPPOSED SPACED RELATIONSHIP TO AN INNER SURFACE OF THE CASING, A FLUID PASSAGE IN EACH VANE IN PERMANENT COMMUNICATION WITH THE INTERIOR OF THE RESERVOIR AND WITH AN OUTLET LOCATED SUB-
Claim 2
Dependent Claim
118 words
APPARATUS FOR HANDLING GRANULAR MATERIAL COMPRISING A CASING; A MATERIAL INLET INTO THE CASING; A MATERIAL OUTLET FROM THE CASING SPACED FROM THE INLET; A ROTOR ROTATABLY LOCATED WITHIN THE CASING, THE ROTOR COMPRISING A HOLLOW RESERVOIR FOR FLUID UNDER PRESSURE, A FLUID INLET INTO THE RESERVOIR, A PLURALITY OF CIRCUMFERENTIALLY SPACED VANES EXTENDING RADIALLY FROM THE RESERVOIR TOWARDS SAID CASING WITH EACH PAIR OF ADJACENT VANES FORMING A POCKET FOR TRANSFERRING MATERIAL FROM THE INLET TO THE OUTLET, EACH VANES PRESENTING A TIP SURFACE DISPOSED IN OPPOSED SPACED RELATIONSHIP TO AN INNER SURFACE OF THE CASING, A FLUID PASSAGE IN EACH VANE IN PERMANENT COMMUNICATION WITH THE INTERIOR OF THE RESERVOIR AND WITH AN OUTLET LOCATED SUB-
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-13 | 1969-06-14 | 1969-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-13 | 1973-06-14 | 1973-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-13 | 1977-06-14 | 1977-12-14 | $7700.00 | Window Closed / Lapsed |