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US 11,883,769 B2Granted
Mist and vapor eliminating filter, device, system and method of use
AssigneePall Corporation
InventorsJames Robb, Stuart M. Skull, Paul D. Roux
Life of this patent
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Abstract
Mist and vapor eliminating filters, devices, methods of filtering aircraft air using the devices, and systems including the devices, are disclosed.
Claims20
A mist and vapor eliminating filter comprising:
- a first stage hollow filter and a second stage hollow filter;
- (a) the first stage hollow filter comprising
- a first housing having a first housing first end and a first housing second end;
- and, arranged in the first housing:
- (i) a first adsorption element comprising activated carbon and/or activated clay;
- and,
- (ii) a first hydrophobic pleated hollow porous medium surrounding the first adsorption element;
- the first stage hollow filter including a first end cap connected to the first housing first end;
- (b) the second stage hollow filter comprising
- a second housing having second housing first end and a second housing second end;
- and, arranged in the second housing:
- (iii) a second adsorption element comprising activated carbon and/or activated clay;
- (iv) a second hydrophobic pleated hollow porous medium surrounding the second adsorption element;
- the second stage hollow filter including a second end cap connected to the second housing second end;
- (c) wherein the first housing second end is connected to the second housing first end by an intermediate end cap;
- the intermediate end cap including a first drain channel between the first housing second end and the second housing first end;
- and,
- the second end cap including a second drain channel at the second housing second end.
15 more elements
Dependencies are inferred from the claim text.