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US 5,389,175 AGranted
Method of manufacturing a pleated filter material
AssigneeFilterwerk Mann & Hummel GmbH
InventorBerthold Wenz
Life of this patent
Estimating the term…
Abstract
A method and apparatus for the manufacture of a pleated filter from an endless web of filter material scores a web of filter material scored in a scoring station. The web of filter material is then passed with a set pleat spacing into cogbelts. The filter material web is then severed by a cutter into pieces suitable for further processing.
Claims11
A method for the manufacture of a pleated filter material web from an endless web of filter material, comprising:
- scoring the filter material web;
- introducing the filter material web between at least two cogbelts spaced apart from one another and disposed above and below the filter material web and running with the filter web, the cogbelts subsequently pleating the filter material web according to the scoring;
- and
- advancing the pleated filter material with a defined distance between pleats by at least one helix adjoining the cogbelts.
1 more element
Dependencies are inferred from the claim text.