Pellet machine
Abstract
Abstract A PELLET MACHINE CHARACTERIZED BY A PAIR OF OPPOSED PELLETIZING ROLLS MOUNTED ON HORIZONTAL PARALLEL AXES, EACH OF THE ROLLS HAVING CYLINDRICAL RESILIENT SURFACES CHARACTERIZED BY SPACED CONTINUOUS CIRCUMFERENTIAL GROOVES FORMING ANNULAR LANDS THEREBETWEEN. THE ROLLS ARE DISPOSED WITH THE LANDS OF EACH ROLL EXTENDING INTO THE GROOVES OF THE ADJACENT ROLL AND MEANS ARE PROVIDED FOR ROTATING THE ROLLS TO PROVIDE A DOWNWARD MOVEMENT OF THE COOPERATIVELY ENGAGED PORTIONS THEREOF. SUITABLE MEANS ARE DISPOSED ABOVE THE ROLLS FOR INTRODUCING MATERIAL TO BE PELLETIZED INTO THE NIP OF THE ROLLS. THE MATERIAL PASSAGE BETWEEN THE INTERACTING ROLLS PROVIDES A COMPACTION AND PELLETIZING OF THE MATERIAL DUE TO THE ELASTIC DEFORMATION OF THE RESILIENT ROLL SURFACES.
Inventors
- 👤 Clifton A Danforth
Bibliographic Details
Claims Analysis
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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) | 1974-02-08 | 1974-08-10 | 1975-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-08 | 1978-08-10 | 1979-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-08 | 1982-08-10 | 1983-02-09 | $7700.00 | Window Closed / Lapsed |