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US 5,393,422 AGranted
Disposable filter having a flexible casing
AssigneeEastman Kodak Company
InventorLeslie J. H. Pummell
Life of this patent
Estimating the term…
Abstract
A disposable filter including a flexible casing and at least one filter element. The flexible casing and filter elements are expendable from a substantially flat form for use and are collapsible to a substantially flat form after use for disposable.
Claims4
A disposable filter comprising:
- a flexible casing having an inlet into which the material to be filtered is introduced, and at least one filter element sealed to the inside of the flexible casing and positioned across the direction of flow of the material to be filtered, each of the filter elements is formed to have a fold which lies downstream in the filter and the flexible casing and filter elements being expandable from a substantially flat form for use and collapsible to a substantially flat form after use for disposal and wherein one or more of the filter elements is formed to have one or more pleats.
Dependencies are inferred from the claim text.