Gas separation – Residue access – handling or removing means – Separable collection container
Reexamination Certificate
2008-01-22
2008-01-22
Smith, Duane (Department: 1724)
Gas separation
Residue access, handling or removing means
Separable collection container
C055S385100, C055S359000, C055S473000, C055S490000, C055SDIG030, C015S347000, C015S352000
Reexamination Certificate
active
10504494
ABSTRACT:
A filter device adapted for filtering fluids flowing one of into or out of a fluid duct. In one embodiment, the filter device comprises a container having one or more walls, wherein at least one of the walls is at least partially rigid and a first opening and a filter element mounted in the first opening so that the filter element forms at least a portion of one of the walls. The one or more container and the interior face of the filter element define an interior adapted for collecting contaminants in a fluid flowing out of the fluid duct. The container further comprises a second opening adapted for sealingly and removably connecting the filter device to the fluid duct so as to provide fluid communication between the interior of the filter device and the fluid duct, wherein the second opening is further adapted for being closed when the filter device is removed from the fluid duct. In another embodiment, the filter device comprises a container formed of first and second integral parts sealingly joined together, wherein the container comprises at least one cut-out first opening with a filter element mounted in the cut-out and a second opening for fluid communication with the fluid duct, and wherein the second opening has a first portion that is at least partially defined by the first integral part and a second portion that is at least partially defined by the second integral part. Methods of replacing a filter device and methods of making a filter device are also disclosed.
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Valkenburg Johannes
van de Graaf Peter
3M Innovative Properties Company
Ehrich Dena M.
Geise C. Michael
LandOfFree
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