US2741796A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Feeding mechanism
Assignee: Phillips Petroleum Co
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Filing: 1952-01-02
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Granted: 1956-04-17
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Expires: 1972-01-02
Abstract
No abstract record available.
Inventors
- 👤 William R King
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:19
CPC Classifications
B; B01; B01J; B01J2/00; B01J2/12; C; C09; C09C; C09C1/00; C09C1/44; C09C1/48; C09C1/56; C09C1/58; Y; Y10; Y10S; Y10S100/00; Y10S100/903; Y10S100/904
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
FEEDING MECHANISM COMPRISING IN COMBINATION, AN ELONGATED TUBE, A DISCHARGE OPENING IN SAID TUBE, A SCREW CONVEYOR HAVING A HELICAL BLADE MOUNTED WITHIN SAID TUBE, AND A SLEEVE SECURED TO THE OUTER EDGE OF SAID BLADE ADJACENT SAID DISCHARGE OPENING, SAID SLEEVE FORMING AN INNER TUBE MOUNTED WITHIN AND CONCENTRIC WITH SAID ELONGATED TUBE HAVING ONE END THEREOF CUT WAY TO FIT THE CONTOUR OF SAID CONVEYOR BLADE, SAID SLEEVE BEING ARRANGED TO COVER UP SAID DISCHARGE OPENING DURING A PORTION OF EACH COMPLETE ROTATION OF SAID CONVEYOR AND TO OPEN SAID DISCHARGE OPENING DURING THE REMAINDER OF SAID COMPLETE REVOLUTION.
Claim 2
Dependent Claim
101 words
FEEDING MECHANISM COMPRISING IN COMBINATION, AN ELONGATED TUBE, A DISCHARGE OPENING IN SAID TUBE, A SCREW CONVEYOR HAVING A HELICAL BLADE MOUNTED WITHIN SAID TUBE, AND A SLEEVE SECURED TO THE OUTER EDGE OF SAID BLADE ADJACENT SAID DISCHARGE OPENING, SAID SLEEVE FORMING AN INNER TUBE MOUNTED WITHIN AND CONCENTRIC WITH SAID ELONGATED TUBE HAVING ONE END THEREOF CUT WAY TO FIT THE CONTOUR OF SAID CONVEYOR BLADE, SAID SLEEVE BEING ARRANGED TO COVER UP SAID DISCHARGE OPENING DURING A PORTION OF EACH COMPLETE ROTATION OF SAID CONVEYOR AND TO OPEN SAID DISCHARGE OPENING DURING THE REMAINDER OF SAID COMPLETE REVOLUTION.
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) | 1959-04-17 | 1959-10-17 | 1960-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-17 | 1963-10-17 | 1964-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-17 | 1967-10-17 | 1968-04-17 | $7700.00 | Window Closed / Lapsed |