Internal flexible dust seal

Details Internal flexible dust seal Internal flexible dust seal

1997-12-19

2000-02-22

Nicholson, Eric K.

Pipe joints or couplings

Flexible joint, rigid members

Bellows

285 49, 285397, 277607, F16L 2710

Patent

active

060271477

ABSTRACT:
An internal flexible dust seal for connecting and accomodating misalignment, expansion, contraction, and torsion between openings of adjacent ducts carrying dust and particulate laden hot gases. The internal flexible dust seal can undergo lateral, axial, angular, and torsional movements while at the same time keeping any particulate matter or dust from leaving the duct and/or entering the space between liner plates and the insulation cavity of an outer gas flexible seal or expansion joint. The internal flexible dust seal is fixed to the inside of the duct.

REFERENCES:
patent: 3070130 (1962-12-01), Risley
patent: 3128220 (1964-04-01), Gracer
patent: 3712649 (1973-01-01), Martin
patent: 4090726 (1978-05-01), Mischel
patent: 4140338 (1979-02-01), Kazmierski, Jr. et al.
patent: 4289338 (1981-09-01), Cook
patent: 4299414 (1981-11-01), Bachmann

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