US3208799A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dry material transfer apparatus
Assignee: Individual
•
Filing: 1962-08-16
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Granted: 1965-09-28
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Expires: 1982-08-16
Abstract
No abstract record available.
Inventors
- 👤 William F Rivers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:34
CPC Classifications
B; B65; B65G; B65G53/00; B65G53/04; B65G53/16; B65G53/18; B65G53/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
163 words
APPARATUS FOR HANDLING DRY FLUENT MATERIAL, COMPRISING A STORAGE RECEPTACLE, MEANS FOR CONVEYING A DRY FLUENT MATERIAL INTO THE RECEPTACLE, SAID RECEPTACLE HAVING A DOWNWARDLY TAPERING BOTTOM WALL LEADING TO A MOUTH OPENING, MEANS CONNECTED WITH SAID MOUTH OPENING FOR DIFFUSINGG AIR UNDER PRESSURE INTO THE RECEPTACLE THROUGH SAID MOUTH OPENING WHEREBY TO FLUIDIZE DRY FLUENT MATERIAL IN THE RECEPTACLE, A MATERIALA LEAD-OFF CONNDUIT LEADING FROM WITHIN THE RECCEPTACLE AND HAVING AN INTAKE END POSITIONED ADJACENT TO SAID AIR DIFFUSING MEANSS, A FIRST SHUNTOFF VALVE IN SAID CONDUIT EXTERIORLY OF THE RECEPTACLE, AN AIR PIPE HAVING AN OPEN END IN THE RECEPTACLE ADJACENTT TO THE TOP THEREOF, AND HAVING A LOWER END PORTIONN EXTERIORLY OF THE RECEPTACLE AND JOINING SAI CONDUIT ON THE REMOTE SIDE OF SAID VALVE FROM SAID INTAKE END AND AT AN OBLIQUE ANGLE DIRECTED INTO THE CONDUIT AWAY FROM SAID INTAKE END, A SECOND SHUT-OFF VALVE, SAID SECOIND VALVE BEING IN SAID AIR PIPE, CONDUIT MEANS CONNECTED AT ONE
Claim 2
Dependent Claim
163 words
APPARATUS FOR HANDLING DRY FLUENT MATERIAL, COMPRISING A STORAGE RECEPTACLE, MEANS FOR CONVEYING A DRY FLUENT MATERIAL INTO THE RECEPTACLE, SAID RECEPTACLE HAVING A DOWNWARDLY TAPERING BOTTOM WALL LEADING TO A MOUTH OPENING, MEANS CONNECTED WITH SAID MOUTH OPENING FOR DIFFUSINGG AIR UNDER PRESSURE INTO THE RECEPTACLE THROUGH SAID MOUTH OPENING WHEREBY TO FLUIDIZE DRY FLUENT MATERIAL IN THE RECEPTACLE, A MATERIALA LEAD-OFF CONNDUIT LEADING FROM WITHIN THE RECCEPTACLE AND HAVING AN INTAKE END POSITIONED ADJACENT TO SAID AIR DIFFUSING MEANSS, A FIRST SHUNTOFF VALVE IN SAID CONDUIT EXTERIORLY OF THE RECEPTACLE, AN AIR PIPE HAVING AN OPEN END IN THE RECEPTACLE ADJACENTT TO THE TOP THEREOF, AND HAVING A LOWER END PORTIONN EXTERIORLY OF THE RECEPTACLE AND JOINING SAI CONDUIT ON THE REMOTE SIDE OF SAID VALVE FROM SAID INTAKE END AND AT AN OBLIQUE ANGLE DIRECTED INTO THE CONDUIT AWAY FROM SAID INTAKE END, A SECOND SHUT-OFF VALVE, SAID SECOIND VALVE BEING IN SAID AIR PIPE, CONDUIT MEANS CONNECTED AT ONE
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) | 1968-09-27 | 1969-03-29 | 1969-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-27 | 1973-03-29 | 1973-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-27 | 1977-03-29 | 1977-09-28 | $7700.00 | Window Closed / Lapsed |