Gas separation – Flexible or collapsible bag type – With flow line coupling means
Patent
1998-09-04
1999-10-12
Woo, Jay H.
Gas separation
Flexible or collapsible bag type
With flow line coupling means
55378, 55379, 55498, 55502, 210450, 210473, 210474, B01D 2921
Patent
active
059649097
ABSTRACT:
The present invention is directed to a filter cartridge that provides for a secure dust tight seal and is easily inserted and removed from a filtration unit. The filter cartridge includes a cartridge unit having a filter element, a bottom cap and a top boot and a sealing sleeve for insertion into the interior of the top boot. The top boot has an outside diameter which is slightly smaller than the inside diameter of the opening in a tube sheet into which the filter cartridge is to be inserted so that the cartridge may be easily inserted into and removed from the opening in a tube sheet. The top boot is also provided with a sealing ridge, which is located in the inside of the boot at the sealing point. The inside diameter of the sealing ridge is smaller than the cartridge boot and the sealing sleeve. When the sealing sleeve is inserted into the cartridge boot, the sealing sleeve contacts the sealing ridge and causes an increase in diameter of the sealing ridge. This in turns causes the sidewall of the cartridge boot to balloon outwardly to contact the side of the opening in a tube sheet and form a dust tight seal around the opening in the tube sheet into which the filter cartridge is inserted. To remove the cartridge from the unit the sealing sleeve is removed from the cartridge and than the cartridge is easily lifted out of the unit.
REFERENCES:
patent: 5730766 (1998-03-01), Clements
Buckingham, Flexible Filter Element, IBM Technical Disclosure Bulletin, vol. 4, No. 7, Dec. 1961.
Pham Minh-Chau T.
Woo Jay H.
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