Tubing assembly unit for boilers for use in connection with combustion on pressurized fluidized beds

- ABB Carbon AB
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Description

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 unit of the present invention; and,

FIG. 6 is a rear view of the tubing assembly unit of the present invention.

Referenced Cited
U.S. Patent Documents
4211186 July 8, 1980 Pearce
4357907 November 9, 1982 Campbell
4770128 September 13, 1988 McDonald et al.
4790267 December 13, 1988 Mollenhoff
Patent History
Patent number: D353666
Type: Grant
Filed: Mar 17, 1993
Date of Patent: Dec 20, 1994
Assignee: ABB Carbon AB (Finspang)
Inventor: Arne Jonsson (Finsp.ang.ng)
Primary Examiner: Lisa P. Lichtenstein
Attorney: Marshall A. Lerner
Application Number: 0/6,012