Patent JP2000357201A successfully refreshed from Google Patents.
Patent US3214152A successfully refreshed from Google Patents.
US3214152A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pusher-type furnace
Assignee: Wistra Ofenbau GmbH
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Filing: 1963-10-02
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Granted: 1965-10-26
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Expires: 1983-10-02
Abstract
No abstract record available.
Inventors
- 👤 Molz Josef
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 12:25
CPC Classifications
F; F27; F27D; F27D3/00; F27D3/02; F27D3/022; F27B; F27B9/00; F27B9/14; F27B9/20; F27B9/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
IN A PUSHER-TYPE FURNACE, IN COMBINATION, AN ELONGATED HOLLOW SUPPORT BEAM ADAPTED TO BE COOLED BY A COOLING FLUID FLOWING THROUGH THE INTERIOR OF THE HOLLOW SUPPORT BEAM; HEAT-RESISTANT AND HEAT-INSULATING MEANS RESTING ON, BUT OTHERWISE UNCONNECTED TO, SAID BEAM AT AN UPPER SURFACE THEREOF; WORK-ENGAGING MEANS RESTING ON, BUT OTHERWISE UNCONNECTED TO, SAID HEAT-RESISTANT MEANS, SAID WORK-ENGAGING MEANS PROVIDING AN UPPER SURFACE ALONG WHICH THE WORK CAN SLIDE WHILE BEING PUSHED THROUGH THE FURNACE AND BEING MADE OF A MATERIAL OF HIGH HEAT CONDUCTIVITY AND HIGH WEAR RESISTANCE, THE WEIGHT OF THE WORK COMPRESSING THE HEAT-RESISTANT MEANS BETWEEN SAID WORK-
Claim 2
Dependent Claim
101 words
IN A PUSHER-TYPE FURNACE, IN COMBINATION, AN ELONGATED HOLLOW SUPPORT BEAM ADAPTED TO BE COOLED BY A COOLING FLUID FLOWING THROUGH THE INTERIOR OF THE HOLLOW SUPPORT BEAM; HEAT-RESISTANT AND HEAT-INSULATING MEANS RESTING ON, BUT OTHERWISE UNCONNECTED TO, SAID BEAM AT AN UPPER SURFACE THEREOF; WORK-ENGAGING MEANS RESTING ON, BUT OTHERWISE UNCONNECTED TO, SAID HEAT-RESISTANT MEANS, SAID WORK-ENGAGING MEANS PROVIDING AN UPPER SURFACE ALONG WHICH THE WORK CAN SLIDE WHILE BEING PUSHED THROUGH THE FURNACE AND BEING MADE OF A MATERIAL OF HIGH HEAT CONDUCTIVITY AND HIGH WEAR RESISTANCE, THE WEIGHT OF THE WORK COMPRESSING THE HEAT-RESISTANT MEANS BETWEEN SAID WORK-
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) | 1968-10-25 | 1969-04-26 | 1969-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-25 | 1973-04-26 | 1973-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-25 | 1977-04-26 | 1977-10-26 | $7700.00 | Window Closed / Lapsed |