Patent US3243059A successfully refreshed from Google Patents.
US3243059A
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Slab heating furances and extractors
Assignee: MESTA ENGINEERING COMPANY APARTNERSHIP OF PA
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Filing: 1962-05-24
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Granted: 1966-03-29
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Expires: 1982-05-24
Abstract
No abstract record available.
Inventors
- 👤 Herman J Kalberkamp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:45
CPC Classifications
B; B21; B21B; B21B39/00; B21B39/004; F; F27; F27B; F27B9/00; F27B9/14; F27B9/20; F27B9/22; F27B9/225; F27B9/30; F27B9/38; F27B2009/384; F27D; F27D3/00; F27D2003/0034; F27D2003/0042; F27D2003/0046; F27D2003/0051
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
176 words
IN A SLAB HEATING LINE HAVING A FURNACE, A HEARTH IN SAID FURNACE, AN ENTRY END AND A DELIVERY END ON SAID HEARTH, MEANS SUCCESSIVELY URGING SLABS ACROSS SAID HEARTH TO BE HEATED FROM THE ENTRY TO THE DELIVERY END, TABLE ROLLS ADJACENT SAID FURNACE AT THE DELIVERY END, THE IMPROVEMENT COMPRISING AN ACCESS OPENING IN THE FURNACE ADJACENT THE TABLE ROLLS AND BELOW THE FURNACE HEARTH, MOVABLE ARM MEANS ADAPTED TO MOVE IN A VERTICAL PLANE PARALLEL TO THE AXES OF THE ROLLS, A SLAB RECEIVING SURFACE ON SAID ARM MEANS MOVABLE WITH THE ARMS FROM A FIRST POSITION WITHIN THE FURNACE FORMING AN EXTENSION OF THE HEARTH TO A SECOND AND LOWER POSITION BENEATH THE TABLE ROLLS, A CAM SURFACE ON SAID ARMS AND A COOPERATING GUIDE MEANS ADJACENT THE FURNACE FOR GUIDING SAID ARMS FROM ONE POSITION TO THE OTHER WHILE RAISING AND LOWERING THE ARMS TO POSITION THE SLAB RECEIVING SURFACE TO PASS THROUGH THE ACCESS OPENING AND DRIVE MEANS ACTING ON SAID ARMS TO MOVE THEN LONGITUDINALLY ON THE GUIDE MEANS.
Claim 2
Dependent Claim
176 words
IN A SLAB HEATING LINE HAVING A FURNACE, A HEARTH IN SAID FURNACE, AN ENTRY END AND A DELIVERY END ON SAID HEARTH, MEANS SUCCESSIVELY URGING SLABS ACROSS SAID HEARTH TO BE HEATED FROM THE ENTRY TO THE DELIVERY END, TABLE ROLLS ADJACENT SAID FURNACE AT THE DELIVERY END, THE IMPROVEMENT COMPRISING AN ACCESS OPENING IN THE FURNACE ADJACENT THE TABLE ROLLS AND BELOW THE FURNACE HEARTH, MOVABLE ARM MEANS ADAPTED TO MOVE IN A VERTICAL PLANE PARALLEL TO THE AXES OF THE ROLLS, A SLAB RECEIVING SURFACE ON SAID ARM MEANS MOVABLE WITH THE ARMS FROM A FIRST POSITION WITHIN THE FURNACE FORMING AN EXTENSION OF THE HEARTH TO A SECOND AND LOWER POSITION BENEATH THE TABLE ROLLS, A CAM SURFACE ON SAID ARMS AND A COOPERATING GUIDE MEANS ADJACENT THE FURNACE FOR GUIDING SAID ARMS FROM ONE POSITION TO THE OTHER WHILE RAISING AND LOWERING THE ARMS TO POSITION THE SLAB RECEIVING SURFACE TO PASS THROUGH THE ACCESS OPENING AND DRIVE MEANS ACTING ON SAID ARMS TO MOVE THEN LONGITUDINALLY ON THE GUIDE MEANS.
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) | 1969-03-28 | 1969-09-27 | 1970-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-28 | 1973-09-27 | 1974-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-28 | 1977-09-27 | 1978-03-29 | $7700.00 | Window Closed / Lapsed |