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The ornamental design for tubing assembly unit for boilers for use in connection with combustion on pressurized fluidized beds, as shown and described. |
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FIG. 1 is a top view of the tubing assembly unit of the present invention;
FIG. 2 is a right side view of the tubing assembly unit of the present invention;
FIG. 3 is a left side view of the tubing assembly unit of the present invention;
FIG. 4 is a bottom view of the tubing assembly unit of the present invention;
FIG. 5 is a front view of the tubing assembly of the present invention; and,
FIG. 6 is a rear view of the tubing assembly unit of the present invention.
| Patent | Priority | Assignee | Title |
| ER1574, |
| Patent | Priority | Assignee | Title |
| 4357907, | Oct 27 1980 | Rockwell International Corporation | Fluidized bed combustor with improved indirect heat exchanger units |
| 4770128, | Apr 05 1988 | THE BABCOCK & WILCOX POWER GENERATION GROUP, INC | Heat exchanger support |
| 4790267, | Dec 23 1986 | Deutsche Babcock Werke Aktiengesellschaft | Arrangement for burning fuels in a fluidized bed with an augmented solids circulation in a combustion chamber of a steam generator |
| D280545, | Jul 29 1982 | Nisshin Chemical Industry Co., Ltd. | Heat exchanger |
| D280547, | Jul 29 1982 | Nisshin Chemical Industry Co., Ltd. | Heat exchanger |
| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Mar 22 1993 | ABB Carbon AB | (assignment on the face of the patent) | / | |||
| Aug 11 1993 | OSTMAN, SVEN-OLOV | ABB Carbon AB | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 007041 | /0273 |
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