US3588059A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Guide rail assembly for pusher-type furnace
Assignee: Huettenwerk Oberhausen AG
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Filing: 1968-08-05
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Granted: 1971-06-28
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Expires: 1988-08-05
Abstract
Abstract PORTED ON THE RAIL EITHER THROUGH THE INTERMEDIARY OF THESE SPACERS OR THROUGH LATERAL RAIL EXTENSIONS ON WHICH THE FLANGES REST. TO SUPPORT A SUCCESSION OF WORKPIECES ON A COOLED GUIDE RAIL OF A PUSHER-TYPE FURNACE, CARRIER BLOCKS WITH HOLLOW PROFILES AND DOWNWARDLY DIVERGING SIDE FLANGES ARE INTERPOSED BETWEEN THE WORKPIECES AND THE RAIL, THE FLANGES BRACKETING THE UPPER PART OF THE RAIL WITH LATERAL CLEARANCE TO ACT AS HEAT SHIELDS THEREFOR. THERMALLY INSULATING SPACERS OCCUPY PART OF THE HOLLOW CROSS SECTIONS OF THE BLOCKS, THE LATTER BEING SUP-
Inventors
- 👤 Hans Weineck
- 👤 Edgar Laturell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:24
CPC Classifications
F; F27; F27D; F27D3/00; F27D3/02; F27D3/022
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-27 | 1974-12-27 | 1975-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-27 | 1978-12-27 | 1979-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-27 | 1982-12-27 | 1983-06-28 | $7700.00 | Window Closed / Lapsed |