Back to results
US 3,941,571 AGranted
Filter pleat fold spacer
AssigneeAmerican Air Filter Company, Inc.
InventorAllan R. Getzin
Life of this patent
Estimating the term…
Abstract
A filter pleat fold spacer for use in a gas filter device of the type having a flow-through filter frame and a pleated filter media disposed within the frame to hold the pleats of the filter media apart when subjected to the flow of gas to be filtered, the pleat spacer being formed to provide a yieldable surface adjacent the pleat fold turns of the media.
Claims6
A filter comprising:
- a pleated filter media;
- a plurality of pleat fold spacers inserted between the flanks of the pleated filter media to hold the pleats of the filter media apart;
- each spacer comprising a plurality of generally parallel reduplicating corrugations and a yieldable surface along at least one edge of said spacer disposed adjacent the pleat fold turns of the pleated filter media;
- said yieldable surface comprising means defining a plurality of slits at spaced intervals along and open at one end to said edge of said spacer.
1 more element
Dependencies are inferred from the claim text.