US3199655A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Belt gravimetric feeder zeroing device
Assignee: New York Air Brake LLC
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Filing: 1963-09-12
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Granted: 1965-08-10
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Expires: 1983-09-12
Abstract
No abstract record available.
Inventors
- 👤 Wilbur H Frazel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:14
CPC Classifications
B; B65; B65D; B65D90/00; B65D90/54
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
A FEEDER COMPRISING A TRAVELLING BELT, MEANS TO MOVE THE BELT, A HOPPER ABOVE A PORTION OF THE BELT, SAID HOPPER HAVING A DISCHARGE OPENING SUBSTANTIALLY PARALLEL TO AND SPACED FROM SAID BELT, A CLOSURE DEVICE COMPRISING A STATIONARY SHEET OF FLEXIBLE MATERIAN HAVING A SURFACE AREA SUFFICIENT TO COVER THE HOPPER DISCHARGE OPENING AND EXTEND OUTWARD THEREFROM A SUBSTANTIAL DISTANCE, SAID SHEET THROUGHOUT ITS EXTENT RESTING UPON SAID TRAVELLING BELT AND BEING PRESSED THEREAGAINST BY MATERIAL IN SAID HOPPER.
Claim 2
Dependent Claim
80 words
A FEEDER COMPRISING A TRAVELLING BELT, MEANS TO MOVE THE BELT, A HOPPER ABOVE A PORTION OF THE BELT, SAID HOPPER HAVING A DISCHARGE OPENING SUBSTANTIALLY PARALLEL TO AND SPACED FROM SAID BELT, A CLOSURE DEVICE COMPRISING A STATIONARY SHEET OF FLEXIBLE MATERIAN HAVING A SURFACE AREA SUFFICIENT TO COVER THE HOPPER DISCHARGE OPENING AND EXTEND OUTWARD THEREFROM A SUBSTANTIAL DISTANCE, SAID SHEET THROUGHOUT ITS EXTENT RESTING UPON SAID TRAVELLING BELT AND BEING PRESSED THEREAGAINST BY MATERIAL IN SAID HOPPER.
References Cited (Backward Citations)
US2699248A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-09 | 1969-02-08 | 1969-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-09 | 1973-02-08 | 1973-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-09 | 1977-02-08 | 1977-08-10 | $7700.00 | Window Closed / Lapsed |