Patent US3146918A successfully refreshed from Google Patents.
US3146918A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Particulate material feeding apparatus
Assignee: Individual
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Filing: 1962-06-11
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Granted: 1964-09-01
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Expires: 1982-06-11
Abstract
No abstract record available.
Inventors
- 👤 Edward C Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:59
CPC Classifications
B; B65; B65G; B65G65/00; B65G2814/00; B65G2814/03; B65G2814/0301; B65G2814/0326
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
163 words
FEEDING APPARATUS FOR PARTICULATE MATERIALS COMPRISING A STORAGE HOPPER FOR PARTICULATE MATERIAL, A VERTICAL VIBRATORY SPIRAL CONVEYOR MOUNTED IN THE HOPPER AND HAVING AN ENTRANCE NEAR A LOWER END THEREOF, A PLURALITY OF INCLINED RIGID LINKS ARRANGED SUBSTANTIALLY IN A CIRCLE BENEATH THE CONVEYOR AND HAVING PINS PROJECTING LATERALLY FROM UPPER AND LOWER ENDS THEREOF, SAID LINKS BEING INCLINED IN THE SAME DIRECTION, RESILIENT CONNECTING MEANS SUPPORTING THE PINS OF EACH LINK, THE CONNECTING MEANS OF THE PINS AT THE UPPER ENDS OF THE LINKS BEING SECURED TO THE CONVEYOR AND THE CONNECTING MEANS OF THE PINS AT THE LOWER ENDS OF THE LINKS BEING SECURED TO A BASE, MEANS CONNECTED TO A LINK TO SWING THE LINKS BACK AND FORTH TO IMPART A RAPID HELICAL OSCILLATORY MOTION TO THE SPIRAL CONVEYOR TO DIRECT MATERIAL FROM THE BOTTOM OF THE HOPPER TO THE TOP OF THE CONVEYOR, AND DISCHARGE MEANS AT AN UPPER END OF THE CONVEYOR THROUGH WHICH MATERIAL CAN FLOW THEREFROM.
Claim 2
Dependent Claim
163 words
FEEDING APPARATUS FOR PARTICULATE MATERIALS COMPRISING A STORAGE HOPPER FOR PARTICULATE MATERIAL, A VERTICAL VIBRATORY SPIRAL CONVEYOR MOUNTED IN THE HOPPER AND HAVING AN ENTRANCE NEAR A LOWER END THEREOF, A PLURALITY OF INCLINED RIGID LINKS ARRANGED SUBSTANTIALLY IN A CIRCLE BENEATH THE CONVEYOR AND HAVING PINS PROJECTING LATERALLY FROM UPPER AND LOWER ENDS THEREOF, SAID LINKS BEING INCLINED IN THE SAME DIRECTION, RESILIENT CONNECTING MEANS SUPPORTING THE PINS OF EACH LINK, THE CONNECTING MEANS OF THE PINS AT THE UPPER ENDS OF THE LINKS BEING SECURED TO THE CONVEYOR AND THE CONNECTING MEANS OF THE PINS AT THE LOWER ENDS OF THE LINKS BEING SECURED TO A BASE, MEANS CONNECTED TO A LINK TO SWING THE LINKS BACK AND FORTH TO IMPART A RAPID HELICAL OSCILLATORY MOTION TO THE SPIRAL CONVEYOR TO DIRECT MATERIAL FROM THE BOTTOM OF THE HOPPER TO THE TOP OF THE CONVEYOR, AND DISCHARGE MEANS AT AN UPPER END OF THE CONVEYOR THROUGH WHICH MATERIAL CAN FLOW THEREFROM.
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) | 1967-09-01 | 1968-03-02 | 1968-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-01 | 1972-03-02 | 1972-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-01 | 1976-03-02 | 1976-09-01 | $7700.00 | Window Closed / Lapsed |