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US3224812A
Expired / Lapsed
US
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Conveying system and valve construction therefor
Assignee: Individual
•
Filing: 1965-04-19
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Granted: 1965-12-21
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Expires: 1985-04-19
Abstract
No abstract record available.
Inventors
- 👤 Michael J Bozich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:56
CPC Classifications
B; B65; B65G; B65G53/00; B65G53/34; B65G53/66; A; A01; A01K; A01K5/00; A01K5/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
IN A SYSTEM FOR PNEUMATICALLY CONVEYING FINELY DIVIDED MATERIALS, THE COMBINATION OF A PNEUMATIC CONVEYING CONDUIT, A DEVICE FOR FORCING A STREAM OF AIR INTO ONE END OF THE CONDUIT TO MOVE FINELY DIVIDED MATERIAL THEREALONG, AN OPENING IN THE WALL OF SAID CONDUIT, COVER MEANS FOR SAID OPENING HAVING A FIRST POSITION WHEREIN IT COVERS THE OPENING AND A SECOND POSITION WHEREIN IT UNCOVERS THE OPENING TO PERMIT GRANULAR MATERIAL TO PASS THERETHROUGH, AND MEANS ON THE SIDE OF THE OPENING OPPOSITE SAID ONE END OF THE CONDUIT FOR CREATING A FLOW OF AIR OPPOSING THAT CREATED BY SAID DEVICE WHEREBY THE OPPOSING FLOW OF AIR WILL STOP BOTH THE FLOW OF AIR FROM SAID DEVICE AND THE GRANULAR MATERIAL CARRIED THEREBY ADJACENT THE OPENING AND CAUSE THE GRANULAR MATERIAL TO PASS THROUGH SAID OPENING.
Claim 2
Dependent Claim
136 words
IN A SYSTEM FOR PNEUMATICALLY CONVEYING FINELY DIVIDED MATERIALS, THE COMBINATION OF A PNEUMATIC CONVEYING CONDUIT, A DEVICE FOR FORCING A STREAM OF AIR INTO ONE END OF THE CONDUIT TO MOVE FINELY DIVIDED MATERIAL THEREALONG, AN OPENING IN THE WALL OF SAID CONDUIT, COVER MEANS FOR SAID OPENING HAVING A FIRST POSITION WHEREIN IT COVERS THE OPENING AND A SECOND POSITION WHEREIN IT UNCOVERS THE OPENING TO PERMIT GRANULAR MATERIAL TO PASS THERETHROUGH, AND MEANS ON THE SIDE OF THE OPENING OPPOSITE SAID ONE END OF THE CONDUIT FOR CREATING A FLOW OF AIR OPPOSING THAT CREATED BY SAID DEVICE WHEREBY THE OPPOSING FLOW OF AIR WILL STOP BOTH THE FLOW OF AIR FROM SAID DEVICE AND THE GRANULAR MATERIAL CARRIED THEREBY ADJACENT THE OPENING AND CAUSE THE GRANULAR MATERIAL TO PASS THROUGH SAID OPENING.
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) | 1968-12-20 | 1969-06-21 | 1969-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-20 | 1973-06-21 | 1973-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-20 | 1977-06-21 | 1977-12-21 | $7700.00 | Window Closed / Lapsed |