Patent US3285390A successfully refreshed from Google Patents.
US3285390A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for lining metallurgical vessels, such as converters
Assignee: Voestalpine AG
•
Filing: 1964-12-17
•
Granted: 1966-11-15
•
Expires: 1984-12-17
Abstract
No abstract record available.
Inventors
- 👤 Puxkandl Peter
- 👤 Smejkal Helmut
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:25
CPC Classifications
C; C21; C21C; C21C5/00; C21C5/28; C21C5/42; C21C5/44; C21C5/441; F; F27; F27D; F27D1/00; F27D1/16; F27D1/1621
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
APPARATUS FOR LINING METALLURGICAL VESSELS WITH REFRACTORY BRICKS, COMPRISING A CONVEYOR FEEDING SAID REFRACTORY BRICKS FROM AN OPERATING LEVEL TO THE CHARGING DEVICE OF A PATERNOSTER ELEVATOR ADAPTED TO BE INTRODUCED INTO THE INTERIOR OF SAID VESSEL FROM ONE OF THE TOP AND BOTTOM SIDES THEREOF AND CARRYING A WORKING PLATFORM PROVIDED WITH A DEVICE FOR DISTRIBUTING SAID BRICKS, SAID DISTRIBUTING DEVICE COMPRISING AT LEAST ON ROTATING ANNULAR PLATE TO WHICH SAID BRICKS ARE SUPPLIED AFTER BEING
Claim 2
Dependent Claim
77 words
APPARATUS FOR LINING METALLURGICAL VESSELS WITH REFRACTORY BRICKS, COMPRISING A CONVEYOR FEEDING SAID REFRACTORY BRICKS FROM AN OPERATING LEVEL TO THE CHARGING DEVICE OF A PATERNOSTER ELEVATOR ADAPTED TO BE INTRODUCED INTO THE INTERIOR OF SAID VESSEL FROM ONE OF THE TOP AND BOTTOM SIDES THEREOF AND CARRYING A WORKING PLATFORM PROVIDED WITH A DEVICE FOR DISTRIBUTING SAID BRICKS, SAID DISTRIBUTING DEVICE COMPRISING AT LEAST ON ROTATING ANNULAR PLATE TO WHICH SAID BRICKS ARE SUPPLIED AFTER BEING
References Cited (Backward Citations)
US3033389A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-14 | 1970-05-16 | 1970-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-14 | 1974-05-16 | 1974-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-14 | 1978-05-16 | 1978-11-15 | $7700.00 | Window Closed / Lapsed |