Back to results
US 7,731,849 B2Granted
Filter module and filter device
AssigneePall Corporation
InventorsWolfgang Diemer, Martin Zeiler
Life of this patent
Estimating the term…
Abstract
A filter module includes an axially extending central channel, a first hollow adapter having an interior through which the central channel extends, a second hollow adapter having an interior through which the central extends, one or more filter cells positioned between the first and second adapters and around the central channel, and an enclosure. The enclosure has a first retainer ring mounted around the first adapter, a second retainer ring mounted around the second adapter, and an envelope which is sealed to the first and second retainer rings and extends around the one or more filter cells.
Claims20
A module for filtering media comprising:
- an axially extending central channel;
- a first hollow adapter positioned at a first end of the central channel and having an interior through which the central channel extends and an exterior;
- a second hollow adapter positioned at a second end of the central channel and having an interior through which the central channel extends and an exterior;
- one or more filter cells positioned between the first and second adapters and around the central channel, wherein each filter cell includes first and second filter layers and wherein each filter layer has an inner surface and an outer surface, the first and second layers defining a passage that fluidly communicates between the inner surfaces of the filter layers and the central channel;
- and
- an enclosure including a first retainer ring, a second retainer ring, an envelope, and an exterior, wherein the first retainer ring is mounted around the exterior of the first adapter at the first end of the central channel, wherein the second retainer ring is mounted around the exterior of the second adapter at the second end of the central channel, wherein the envelope extends around the one or more filter cells and includes a first region sealed to the first retainer ring and a second region sealed to the second retainer ring, the envelope and the filter cells forming a fluid chamber, and wherein the enclosure further has an opening that fluidly communicates between the exterior of the enclosure and the second surfaces of the filter layers of the one or more filter cells in the fluid chamber.
3 more elements
A module for filtering media comprising:
- a first hollow adapter at one end of the module, the first hollow adapter having an interior and an exterior;
- one or more filter cells, each filter cell including first and second filter layers having an inner surface, an outer surface, and a central opening;
- a second hollow adapter at an opposite end of the module, the second hollow adapter having an interior and an exterior;
- an axially extending central channel, wherein the central channel extends axially through the interior of the first hollow adapter at the first end of the module, the central openings of the one or more filter cells, and the interior of the second hollow adapter at the second end of the module, respectively, wherein the one or more filter cells is located axially between the first hollow adapter at the first end of the module and the second hollow adapter at the second end of the module, and wherein the first and second filter layers of each filter cell define a passage that fluidly communicates between the inner surfaces of the filter layers and the central channel;
- and
- an enclosure including an envelope that surrounds the one or more filter cells, a first retainer ring sealed to the envelope and arranged on the exterior of the first hollow adapter at the first end of the module, and a second retainer ring sealed to the envelope and arranged on the exterior of the second hollow adapter at the second end of the module, wherein the enclosure has an exterior and defines a chamber between the second surfaces of the filter layers and the envelope, and wherein the enclosure further has an opening that fluidly communicates between the exterior of the enclosure and the chamber.
3 more elements
Dependencies are inferred from the claim text.