Claims
- 1. An improved stud of the type attached to a furnace wall or boiler tube comprised of a cylindrical body having a top, a bottom and a side wall extending from the top to the bottom, wherein the improvement comprises a plurality of projections extending from the top of the stud, the projections sized and configured to form a heat sink.
- 2. The improved stud of claim 1 also comprising a diffusion coating applied to the projections.
- 3. The improved stud of claim 2 wherein the diffusion coating contains at least one of chromium, aluminum, nickel, silicon, boron, rhenium, zinc and carbides, nitrides and oxides thereof.
- 4. The improved stud of claim 1 also comprising a corrosion resistant or erosion resistant coating applied to at least a portion of the body of each stud.
- 5. The improved stud of claim 1 wherein the plurality of projections are formed by a series of cross cuts on the top of the stud.
- 6. The improved stud of claim 1 wherein the side wall is comprised of a plurality of grooves extending from the top toward the bottom of the cylindrical body.
- 7. The improved stud of claim 1 wherein the body has a cross-sectional shape selected from the group consisting of a circle, an oval and a polygon.
- 8. An improved furnace of the type having studs attached to a wall of the furnace wherein the improvement comprises at least some of the studs comprised of a cylindrical body having a top, a bottom, a side wall extending from the top to the bottom, and a plurality of projections extending from the top of the stud, the projections sized and configured to form a heat sink.
- 9. The improved furnace of claim 8 also comprising a diffusion coating applied to the projections.
- 10. The improved furnace of claim 9 wherein the diffusion coating contains at least one of chromium, aluminum, nickel, silicon, boron, rhenium, zinc and nitrides and oxides thereof.
- 11. The improved stud of claim 8 also comprising a corrosion resistant or erosion resistant coating applied to at least a portion of the body of each stud.
- 12. The improved stud of claim 8 wherein the plurality of projections are formed by a series of cross cuts on the top of the stud.
- 13. The improved stud of claim 8 wherein the side wall is comprised of a plurality of grooves extending from the top toward the bottom of the cylindrical body.
- 14. An improved replacement panel for a furnace or boiler of the type having studs attached to a surface of the panel wherein the improvement comprises at least some of the studs comprised of a cylindrical body having a top, a bottom, a side wall extending from the top to the bottom, and a plurality of projections extending from the top of the stud, the projections sized and configured to form a heat sink.
- 15. The improved replacement panel of claim 14 also comprising a diffusion coating applied to the projections.
- 16. The improved replacement panel of claim 15 wherein the diffusion coating contains at least one of chromium, aluminum, nickel, silicon, boron, rhenium, zinc and carbides, nitrides and oxides thereof.
- 17. The improved replacement panel of claim 14 also comprising a corrosion resistant or erosion resistant coating applied to at least a portion of the body of each stud.
- 18. The improved replacement panel of claim 14 wherein the plurality of projections are formed by a series of cross cuts on the top of the stud.
- 17. The improved replacement panel of claim 14 wherein the side wall is comprised of a plurality of grooves extending from the top toward the bottom of the cylindrical body.
- 18. An improved boiler of the type having studs attached to a wall of at least one boiler tube wherein the improvement comprises at least some of the studs comprised of a cylindrical body having a top, a bottom, a side wall extending from the top to the bottom, and a plurality of projections extending from the top of the stud, the projections sized and configured to form a heat sink.
- 19. The improved boiler of claim 18 also comprising a diffusion coating applied to the projections.
- 20. The improved boiler of claim 19 wherein the diffusion coating contains at least one of chromium, aluminum, nickel, silicon, boron, rhenium, zinc and carbides, nitrides and oxides thereof.
- 21. The improved boiler of claim 18 also comprising a corrosion resistant or erosion resistant coating applied to at least a portion of the body of each stud.
- 22. The improved boiler of claim 18 wherein the plurality of projections are formed by a series of cross cuts on the top of the stud.
- 23. The improved boiler of claim 18 wherein the side wall is comprised of a plurality of grooves extending from the top toward the bottom of the cylindrical body.
CROSS REFERENCE TO RELATED APPLICATION
[0001] This application claims priority from U.S. Provisional Patent Application Serial No. 60/448,006, filed Feb. 18, 2003.
Provisional Applications (1)
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Number |
Date |
Country |
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60448006 |
Feb 2003 |
US |