Filter with initially flat membrane and curved membrane support
First Claim
1. A filter device comprising a housing having an inlet chamber with a fluid inlet opening and an outlet chamber with a wall having a fluid outlet opening, a deformable filter membrane separating said chambers and sealed to said housing, said outlet chamber containing a perforated membrane support surface of concave compound curvature spaced from the wall of the outlet chamber, said membrane being held by said housing so as to be initially flat and spaced from said support surface, said membrane being sufficiently deformable so as to be forced into contact with and conform to the compound curvature of said support surface under normal transmembrane pressure when fluid flows through the membrane from said inlet chamber to said outlet chamber.
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Accused Products
Abstract
The filter device of this invention comprises a housing with an inlet chamber and an outlet chamber separated by a deformable microporous membrane, the outlet chamber containing a perforated membrane support surface of concave compound curvature which is spaced from the wall of the outlet chamber, the deformable membrane being in contact with and conforming to the compound curvature of the support surface when fluid flows through the membrane from the inlet chamber to the outlet chamber.
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Citations
4 Claims
- 1. A filter device comprising a housing having an inlet chamber with a fluid inlet opening and an outlet chamber with a wall having a fluid outlet opening, a deformable filter membrane separating said chambers and sealed to said housing, said outlet chamber containing a perforated membrane support surface of concave compound curvature spaced from the wall of the outlet chamber, said membrane being held by said housing so as to be initially flat and spaced from said support surface, said membrane being sufficiently deformable so as to be forced into contact with and conform to the compound curvature of said support surface under normal transmembrane pressure when fluid flows through the membrane from said inlet chamber to said outlet chamber.
Specification