Patent US3089253A successfully refreshed from Google Patents.
US3089253A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for aerating granular and pulverulent materials
Assignee: Chain Belt Co
•
Filing: 1958-11-24
•
Granted: 1963-05-14
•
Expires: 1978-11-24
Abstract
No abstract record available.
Inventors
- 👤 Robley W Evans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:00
CPC Classifications
F; F26; F26B; F26B17/00; F26B17/26; F26B17/266; B; B65; B65G; B65G53/00; B65G2812/00; B65G2812/16; B65G2812/1608; B65G2812/1641; B65G2812/1658; B65G2812/1666
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
79 words
IN CONVEYING APPARATUS; A CONVEYOR CHANNEL HAVING AN IMPERFORATE FLOOR AND UPSTANDING SIDES; MEANS FOR VIBRATING SAID CHANNEL SUCH THAT MATERIALS CARRIED THEREIN HAVE IMPARTED THERETO A SERIES OF UPWARD AND FORWARD TOSSES; MEANS DEFINING A PLENUM CHAMBER EXTENDING ALONG AT LEAST ONE SIDE OF THE CHANNEL WITH AN EXIT SLIT OPENING HORIZONTALLY INTO THE CONVEYING CHANNEL ADJACENT THE FLOOR THEREOF; AND MEANS FOR INJECTING AN AERIFORM FLUID THROUGH SAID SLIT BENEATH SAID MATERIAL AS IT IS TOSSED UPWARDLY.
References Cited (Backward Citations)
US1761149A
Cited
US2164056A
Cited
GB512036A
Cited
US2385140A
Cited
US2847767A
Cited
US2795318A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-05-13 | 1966-11-12 | 1967-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-13 | 1970-11-12 | 1971-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-13 | 1974-11-12 | 1975-05-14 | $7700.00 | Window Closed / Lapsed |