US3298546A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door operator for a tunnel kiln ceramic plant
Assignee: Individual
•
Filing: 1964-09-01
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Granted: 1967-01-17
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Expires: 1984-09-01
Abstract
No abstract record available.
Inventors
- 👤 Robert E Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:51
CPC Classifications
F; F27; F27D; F27D1/00; F27D1/18; F27D1/1858
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
IN A CERAMIC PLANT HAVING A PLURALITY OF TUNNEL KILNS, DRYERS, AND WARMING ROOMS IN SIDE-BY-SIDE RELATION, A TRANSFER CAR OPERATING IN A PIT IN FRONT OF THE KILNS, DRYERS, AND WARMING ROOMS FOR TRANSFERRING KILN CARS WITHIN THE PLANT, AND A VERTICALLY MOVABLE DOOR ON THE END OF EACH OF THE RESPECTIVE KILNS, DRYERS, AND WARMING ROOMS ADJACENT THE PIT, A DOOR OPERATING MECHANISM COMPRISING AN ARM MOUNTED ON THE TRANSFER CAR AND PROJECTING LATERALLY THEREFROM IN THE DIRECTION OF THE DOORS, HOIST MEANS CARRIED BY THE TRANSFER CAR FOR MOVING SAID ARM ALONG A VERTICAL PATH ADJACENT EACH OF SAID DOORS, AND MEANS ON EACH OF SAID DOORS PROJECTING INTO SAID VERTICAL PATH AND MOVABLE THEREALONG BY SAID ARM DURING MOVEMENT THEREOF ALONG SAID VERTICAL PATH TO OPERATE THE VERTICALLY MOVABLE DOORS INDIVIDUALLY WHEN SAID TRANSFER CAR IS IN POSITION IN FRONT OF THE DOOR.
Claim 2
Dependent Claim
147 words
IN A CERAMIC PLANT HAVING A PLURALITY OF TUNNEL KILNS, DRYERS, AND WARMING ROOMS IN SIDE-BY-SIDE RELATION, A TRANSFER CAR OPERATING IN A PIT IN FRONT OF THE KILNS, DRYERS, AND WARMING ROOMS FOR TRANSFERRING KILN CARS WITHIN THE PLANT, AND A VERTICALLY MOVABLE DOOR ON THE END OF EACH OF THE RESPECTIVE KILNS, DRYERS, AND WARMING ROOMS ADJACENT THE PIT, A DOOR OPERATING MECHANISM COMPRISING AN ARM MOUNTED ON THE TRANSFER CAR AND PROJECTING LATERALLY THEREFROM IN THE DIRECTION OF THE DOORS, HOIST MEANS CARRIED BY THE TRANSFER CAR FOR MOVING SAID ARM ALONG A VERTICAL PATH ADJACENT EACH OF SAID DOORS, AND MEANS ON EACH OF SAID DOORS PROJECTING INTO SAID VERTICAL PATH AND MOVABLE THEREALONG BY SAID ARM DURING MOVEMENT THEREOF ALONG SAID VERTICAL PATH TO OPERATE THE VERTICALLY MOVABLE DOORS INDIVIDUALLY WHEN SAID TRANSFER CAR IS IN POSITION IN FRONT OF THE DOOR.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-16 | 1970-07-18 | 1971-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-16 | 1974-07-18 | 1975-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-16 | 1978-07-18 | 1979-01-17 | $7700.00 | Window Closed / Lapsed |