Dispensing apparatus
Abstract
Abstract A DISPOSAL-DISPENSING UNIT FOR DISPENSING PARTICULATE MATERIAL IN WHICH A SUBSTANTIALLY ENCLOSED CONTAINER HAVING AN OPENING IN THE BOTTOM THEREOF IS SEALED BY A RESILIENT OPEN-CELLED ELASTOMERIC ROLL WHICH IS ROTATABLY SUPPORTED IN BIASING CONTACT WITH THE WALLS OF SAID OPENING TO RETAIN PARTICULATE MATERIAL THEREIN. FURTHER MEANS ARE PROVIDED EXTERIOR THE CONTAINER FOR ROTATING THE ROLL SEQUENTIALLY THROUGH THE TONER MATERIAL IN THE CONTAINER WHEREIN THE OPEN-CELLED CAVITIES ON THE ROLL SURFACE ARE UNIFORMLY LOADED WITH PARTICULATE MATERIAL, AND THEN PAST AT LEAST ONE BIASING WALL WHERE THE ROLL SURFACE IS DEFORMED SUFFICIENTLY TO FORCE THE PARTICULATE MATERIAL FROM THE ROLL SURFACE INTO THE DISPENSING OPENING.
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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) | 1977-01-07 | 1977-07-09 | 1978-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-07 | 1981-07-09 | 1982-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-07 | 1985-07-09 | 1986-01-08 | $7700.00 | Window Closed / Lapsed |