US3100631A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cooled furnace transport rollers
Assignee: INDUGAS GES fur IND GASVERWEND
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Filing: 1960-10-04
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Granted: 1963-08-13
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Expires: 1980-10-04
Abstract
No abstract record available.
Inventors
- 👤 Schmidt Theodor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:52
CPC Classifications
F; F27; F27D; F27D3/00; F27D3/02; F27D3/026
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
A FURNACE ROLLER COMPRISING A GENERALLY CYLINDRICAL TUBULAR BODY HAVING A CENTRAL LOAD-SUPPORTING PORTION, AND TWO BEARING EXTREMITIES ON OPPOSITE ENDS THEREOF, AT LEAST ONE COOLING-FLUID CONDUIT EXTNDING INTO BODY AT SAID ONE EXTREMITY THEREOF AND OPENING INTO SAID BODY AT SUBSTANTIALLY THE CENTER OF SAID LOAD-SUPPORTING PORTION WHILE TERMINATING AT A LATERAL LOCATION SUBSTANTIALLY AT THE MIDPOINT BETWEEN THE ENDS OF THE EXTERNAL PERIPHERY OF SAID CENTRAL LOAD-SUPPORTING PORTION, SAID CONDUIT BEING SPACED WITH SUBSTANTIALLY ALL-AROUND CLEARANCE FROM SAID BODY, SAID CLEARANCE COMMUNICATING AT SAID ONE EXTREMITY WITH A SOURCE OF COOLING FLUID TO BE DRAWN FROM SAID SOURCE THROUGH SAID CLEARANCE INTO SAID LOAD-SUPPORTING PORTION AND EJECTED OUTWARDLY THEREFROM VIA SAID CONDUIT, THEREBY COOLING SUBSTANTIALLY HALF OF SAID BODY, AND AN IMPERFORATE ELONGATED HEAT SHIELD SUBSTANTIALLY EXTENDING COAXIALLY ALONG SAID BODY AND SPACEDLY SURROUNDING A LOWER PART OF SAID LOAD-SUPPORTING PORTION.
Claim 2
Dependent Claim
143 words
A FURNACE ROLLER COMPRISING A GENERALLY CYLINDRICAL TUBULAR BODY HAVING A CENTRAL LOAD-SUPPORTING PORTION, AND TWO BEARING EXTREMITIES ON OPPOSITE ENDS THEREOF, AT LEAST ONE COOLING-FLUID CONDUIT EXTNDING INTO BODY AT SAID ONE EXTREMITY THEREOF AND OPENING INTO SAID BODY AT SUBSTANTIALLY THE CENTER OF SAID LOAD-SUPPORTING PORTION WHILE TERMINATING AT A LATERAL LOCATION SUBSTANTIALLY AT THE MIDPOINT BETWEEN THE ENDS OF THE EXTERNAL PERIPHERY OF SAID CENTRAL LOAD-SUPPORTING PORTION, SAID CONDUIT BEING SPACED WITH SUBSTANTIALLY ALL-AROUND CLEARANCE FROM SAID BODY, SAID CLEARANCE COMMUNICATING AT SAID ONE EXTREMITY WITH A SOURCE OF COOLING FLUID TO BE DRAWN FROM SAID SOURCE THROUGH SAID CLEARANCE INTO SAID LOAD-SUPPORTING PORTION AND EJECTED OUTWARDLY THEREFROM VIA SAID CONDUIT, THEREBY COOLING SUBSTANTIALLY HALF OF SAID BODY, AND AN IMPERFORATE ELONGATED HEAT SHIELD SUBSTANTIALLY EXTENDING COAXIALLY ALONG SAID BODY AND SPACEDLY SURROUNDING A LOWER PART OF SAID LOAD-SUPPORTING PORTION.
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) | 1966-08-12 | 1967-02-11 | 1967-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-12 | 1971-02-11 | 1971-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-12 | 1975-02-11 | 1975-08-13 | $7700.00 | Window Closed / Lapsed |