US3073462A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Material handling and transfer device
Assignee: Individual
•
Filing: 1959-05-13
•
Granted: 1963-01-15
•
Expires: 1979-05-13
Abstract
No abstract record available.
Inventors
- 👤 James E Flanagan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:19
CPC Classifications
B; B65; B65F; B65F3/00; B65F3/14; B65F3/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
A MATERIAL HANDLING AND TRANSFER DEVICE INCLUDING IN COMBINATION A HOUSING PROVIDED WITH AN OPENING THROUGH WHICH MATERIAL MAY BE DEPOSITED WITHIN THE HOUSING A GENERALLY HELICAL RAMP HAVING A LEADING EDGE, MEANS MOUNTING SAID RAMP IN SAID HOUSING IN A POSITION AT WHICH THE RAMP EXTENDS OVER SAID OPENING, A PLATE FOR RECEIVING MATERIAL DEPOSITED IN SAID HOUSING, MEANS MOUNTING SAID PLATE WITHIN SAID HOUSING FOR MOVEMENT TO CARRY DEPOSITED MATERIAL FROM SAID OPENING TO THE LEADING EDGE OF SAID RAMP, A PUSHER, MEANS MOUNTING SAID PUSHER FOR MOVEMENT FROM AN OPERATIVE POSITION AT WHICH IT ASSISTS SAID PLATE IN TRANSFERRING MATERIAL INTO SAID RAMP TO A RETRACTED POSITION, A COMMON DRIVE MEANS FOR SAID PLATE AND SAID PUSHER AND MEANS FOR MOVING SAID PUSHER TO ITS RETRACTED POSITION AS IT APPROACHES THE LEADING EDGE OF SAID RAMP.
Claim 2
Dependent Claim
139 words
A MATERIAL HANDLING AND TRANSFER DEVICE INCLUDING IN COMBINATION A HOUSING PROVIDED WITH AN OPENING THROUGH WHICH MATERIAL MAY BE DEPOSITED WITHIN THE HOUSING A GENERALLY HELICAL RAMP HAVING A LEADING EDGE, MEANS MOUNTING SAID RAMP IN SAID HOUSING IN A POSITION AT WHICH THE RAMP EXTENDS OVER SAID OPENING, A PLATE FOR RECEIVING MATERIAL DEPOSITED IN SAID HOUSING, MEANS MOUNTING SAID PLATE WITHIN SAID HOUSING FOR MOVEMENT TO CARRY DEPOSITED MATERIAL FROM SAID OPENING TO THE LEADING EDGE OF SAID RAMP, A PUSHER, MEANS MOUNTING SAID PUSHER FOR MOVEMENT FROM AN OPERATIVE POSITION AT WHICH IT ASSISTS SAID PLATE IN TRANSFERRING MATERIAL INTO SAID RAMP TO A RETRACTED POSITION, A COMMON DRIVE MEANS FOR SAID PLATE AND SAID PUSHER AND MEANS FOR MOVING SAID PUSHER TO ITS RETRACTED POSITION AS IT APPROACHES THE LEADING EDGE OF SAID RAMP.
References Cited (Backward Citations)
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Cited
US2013750A
Cited
US2415592A
Cited
US2629483A
Cited
US2631689A
Cited
US3006492A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-14 | 1966-07-16 | 1967-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-14 | 1970-07-16 | 1971-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-14 | 1974-07-16 | 1975-01-15 | $7700.00 | Window Closed / Lapsed |