US2695248A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Furnace conveyer element and manufacture thereof
Assignee: Blaw Knox Co
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Filing: 1948-12-15
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Granted: 1954-11-23
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Expires: 1968-12-15
Abstract
No abstract record available.
Inventors
- 👤 Martin N Ornitz
- 👤 Ray H English
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:53
CPC Classifications
C; C21; C21D; C21D9/00; C21D9/0006; C21D9/0012; F; F27; F27D; F27D3/00; F27D3/02; F27D3/026; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/923; Y10S428/924; Y10S428/926; Y10S428/9335; Y10S428/937; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/1266; Y10T428/12674; Y10T428/12771; Y10T428/12861; Y10T428/12951; Y10T428/12972; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/294; Y10T428/2951; Y10T428/2955; Y10T428/296
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
A METHOD OF MAKING A FURNACE CONVEYOR ELEMENT COMPRISING DEPOSITING FERRO-SILICON CONTAINING BETWEEN ABOUT 40% AND ABOUT 60% BY WEIGHT OF SILICON ONTO THE SURFACE OF A METAL CONVEYOR ELEMENT BODY TO FORM THEREON A COATING OF FERRO-SILICON HAVING A THICKNESS BETWEEN ABOUT .005" AND ABOUT .030", GRADUALLY HEATING THE SURFACE OF THE METAL CONVEYOR ELEMENT BODY AND THE COATING OF FERR-SILICON THEREON TO RAISE THEM SLOWLY TO A TEMPERATURE IN THE NEIGHBORHOOD OF 1600* F. TO BOND THE FERRO-SILICON TO THE BODY AND HOLDING THE SAME IN THE PRESENCE OF OXYGEN AT THE SAID TEMPERATURE IN THE NEIGHBORHOOD OF 1600* F. TO OXIDIZE THE FERRO-SILICON TO A FERROUS SILICATE COMPOUND, WHEREBY IN THE USE OF SUCH CONVEYOR ELEMENT THE FORMATION OF ACCRETIONS THEREON MAY BE AVOIDED.
Claim 2
Independent Claim
127 words
A METHOD OF MAKING A FURNACE CONVEYOR ELEMENT COMPRISING DEPOSITING FERRO-SILICON CONTAINING BETWEEN ABOUT 40% AND ABOUT 60% BY WEIGHT OF SILICON ONTO THE SURFACE OF A METAL CONVEYOR ELEMENT BODY TO FORM THEREON A COATING OF FERRO-SILICON HAVING A THICKNESS BETWEEN ABOUT .005" AND ABOUT .030", GRADUALLY HEATING THE SURFACE OF THE METAL CONVEYOR ELEMENT BODY AND THE COATING OF FERR-SILICON THEREON TO RAISE THEM SLOWLY TO A TEMPERATURE IN THE NEIGHBORHOOD OF 1600* F. TO BOND THE FERRO-SILICON TO THE BODY AND HOLDING THE SAME IN THE PRESENCE OF OXYGEN AT THE SAID TEMPERATURE IN THE NEIGHBORHOOD OF 1600* F. TO OXIDIZE THE FERRO-SILICON TO A FERROUS SILICATE COMPOUND, WHEREBY IN THE USE OF SUCH CONVEYOR ELEMENT THE FORMATION OF ACCRETIONS THEREON MAY BE AVOIDED.
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) | 1957-11-22 | 1958-05-24 | 1958-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-22 | 1962-05-24 | 1962-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-22 | 1966-05-24 | 1966-11-23 | $7700.00 | Window Closed / Lapsed |