Agitator assembly for particulate material hopper
Abstract
Abstract A GRAVITY FEED HOPPER HAS AN AGITATOR ASSEMBLY COMPRISING AN INTERNAL SCREEN AD EXTERNAL VIBRATOR RIGIDLY JOINED IN SPACED APART RELATION BY BOLTS PASSING THROUGH OPENINGS IN THE HOPPER WALL. THE BASES OF RESILIENT CONICAL BUSHINGS ARE SECURED TO THE WALL ADJACENT THE OPENINGS TO SURROUND AND CONNECT WITH THE RESPECTIVE BOLTS AND RESILIENTLY SUPPORT THE AGITATOR ASSEMBLY ON THE HOPPER. RESILIENT UPWARD BIAS IS PROVIDED THE AGITATOR ASSEMBLY BY A COMPRESSION SPRING COACTING BETWEEN THE VIBRATOR AND AN ADJUSTABLE PLATFORM ON THE EXTERIOR OF THE HOPPER TO COMPENSATE FOR THE WEIGHT OF THE AGITATOR ASSEMBLY AND THE LOAD IMPOSED UPON THE SCREEN BY THE MATERIAL IN THE HOPPER. D R A W I N G
Inventors
- 👤 F Hyer
Bibliographic Details
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-02-06 | 1976-08-07 | 1977-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-06 | 1980-08-07 | 1981-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-06 | 1984-08-07 | 1985-02-06 | $7700.00 | Window Closed / Lapsed |