Patent US4628160A successfully refreshed from Google Patents.
Patent US3279592A successfully refreshed from Google Patents.
US3279592A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Screw auger conveyor with rotatable tube
Assignee: Individual
•
Filing: 1964-12-10
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Granted: 1966-10-18
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Expires: 1984-12-10
Abstract
No abstract record available.
Inventors
- 👤 Ferdinand G Kerkvliet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:27
CPC Classifications
B; B65; B65G; B65G33/00; B65G33/24; B65G33/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
IN COMBINATION WITH A SOURCE OF MATERIAL TO BE CONVEYED AND A DELIVERY STATION AT WHICH CONVEYED MATERIAL IS TO BE DISCHARGED, A SCREW TYPE CONVEYOR COMPRISING AN AUGER AND A TUBE IN WHICH SAID AUGER IS DISPOSED, SAID TUBE HAVING AN INLET COMMUNICATING WITH AND SAID AUGER EXTENDING INTO SAID SOURCE, SAID TUBE HAVING AT LEAST ONE DELIVERY OPENING MEANS DISPOSED FOR DELIVERING MATERIAL FROM SAID TUBE TO SAID DELIVERY STATION, MEANS FOR LOCKING SAID TUBE TO SAID AUGER AGAINST RELATIVE ROTATION, MEANS MOUNTING SAID TUBE FOR ROTATION ABOUT ITS LONGITUDINAL AXIS MEANS FOR IMPARTING ROTATION TO SAID TUBE AND AUGER, MEANS TO AXIALLY ADJUST THE AUGER RELATIVE TO THE TUBE WHEREBY THE DISCHARGE CHARACTERISTICS OF SAID DELIVERY OPENING MEANS IS ADJUSTED.
Claim 2
Dependent Claim
123 words
IN COMBINATION WITH A SOURCE OF MATERIAL TO BE CONVEYED AND A DELIVERY STATION AT WHICH CONVEYED MATERIAL IS TO BE DISCHARGED, A SCREW TYPE CONVEYOR COMPRISING AN AUGER AND A TUBE IN WHICH SAID AUGER IS DISPOSED, SAID TUBE HAVING AN INLET COMMUNICATING WITH AND SAID AUGER EXTENDING INTO SAID SOURCE, SAID TUBE HAVING AT LEAST ONE DELIVERY OPENING MEANS DISPOSED FOR DELIVERING MATERIAL FROM SAID TUBE TO SAID DELIVERY STATION, MEANS FOR LOCKING SAID TUBE TO SAID AUGER AGAINST RELATIVE ROTATION, MEANS MOUNTING SAID TUBE FOR ROTATION ABOUT ITS LONGITUDINAL AXIS MEANS FOR IMPARTING ROTATION TO SAID TUBE AND AUGER, MEANS TO AXIALLY ADJUST THE AUGER RELATIVE TO THE TUBE WHEREBY THE DISCHARGE CHARACTERISTICS OF SAID DELIVERY OPENING MEANS IS ADJUSTED.
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) | 1969-10-17 | 1970-04-18 | 1970-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-17 | 1974-04-18 | 1974-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-17 | 1978-04-18 | 1978-10-18 | $7700.00 | Window Closed / Lapsed |