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Expansion-joint-flexible-seal

Circular stairway and method of making same

OF THE PREFERRED EMBODIMENTS Referring now to FIG. 1, a circular staircase in accordance with the ...

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Expansion joint flexible seal

Details

Inventors: Linck, Ed; Raskin, Neil R.; Swaminathan, V.;
Assignee: Pyropower Corporation (San Diego, CA)
Primary Examiner: Friedman; Carl D.
Assistant Examiner: Mai; Lan C.
Attorney, Agent or Firm: Baker, Maxham, Jester & Meador

An expansion joint and flexible seal for refractory lined flues includes a flexible insulating body having a pair of end faces, a pair of lateral faces and a longitudinal dimension. The flexible seal further includes a filter element positioned adjacent to one of the end faces and extending in the longitudinal dimension. The filter element is attached to the insulating body and the assembly may be placed with other seal assemblies in endwise fashion around the periphery of a pair of opposing flue members. A further external pressure seal is provided, mounted to each end of the flue elements.

DETAILED DESCRIPTION The present invention employs concepts for an expansion joint and flexible seal therefor that accomplish the foregoing objects and advantages.
In accordance therewith, an expansion joint may include flexible seal means having flexible insulating body means and filter means positioned adjacent thereto.
Additional filter element means may be provided, as well as flexible seal mounting means for easy installation and joint accessibility .

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