Filter assembly
AssigneeDomnick Hunter Filters Limited
InventorsColin T. Billiet, David Baggett, Alan Bateman
Life of this patent
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Abstract
A filter assembly (1) comprises a fluid tight housing (6, 7). First and second coupling means (10 and 11) are provided on the housing, each coupling means providing adjacent flow channels into the housing. A filter element is located within the housing, the element having a fluid tight external wall (20) and a filter medium (19) housed within the wall. A first flow path is established between the first and second coupling means through the filter element, while a second flow path between the first and second coupling means is established within the housing but outside the external wall of the filter element.
Claims9
A filter assembly comprising
- a fluid-tight housing,
- a first coupling means on the housing providing a first inlet channel into the housing and a first outlet channel from the housing, said first inlet channel and first outlet channel being adjacent to each other,
- a second coupling means on the housing providing a second inlet channel into the housing and a second outlet channel from the housing, said second inlet channel and second outlet channel being adjacent to each other,
- a filter element having a fluid-tight external wall, a filter inlet, a filter outlet, and filter means mounted within said external wall in a flow passage between the filter inlet and the filter outlet,
- means mounting said filter element within said housing in a location so as to define an unobstructed free space between an outer surface of said external wall of said filter element and an inner surface of said housing,
- means connecting said first inlet channel to said filter inlet and means connecting said filter outlet to said second outlet channel to establish a first flow path from the first inlet channel through the filter means to the second outlet channel,
- the second inlet channel and the first outlet channel being arranged in direct open communication with the unobstructed free space to establish a second flow path through the housing, said second flow path being unobstructed and being wholly separate from and closed off from communication with the first flow path.
Dependencies are inferred from the claim text.