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US 9,517,425 B2Granted
Filter element, method for manufacturing and use thereof
AssigneeValmet Technologies Oy
InventorsRauno Nordfors, Marko Salmela, Sanna Uusitalo
Life of this patent
Estimating the term…
Abstract
The invention relates to a filter element, a method for manufacturing the filter element, and use. The filter element (1) is formed of a solid-liquid filter fabric (2) and has at least one separately manufactured support element (14) fastened to it. The support is a plate-like piece.
Claims17
Filter element for solid-liquid filtering, the filter element comprising:
- at least one filtering portion made of a solid-liquid filter fabric;
- at least one flow opening;
- and
- at least one support element,
- wherein:
- the support element is a plate-like piece defining a polymer plate structure that differs from a structure of the solid-liquid filter fabric;
- the support element is made of at least one of polypropylene or polyurethane;
- the support element is permanently fastened to the solid-liquid filter fabric of the at least one filtering portion of the filter element via stitches;
- and
- the support element includes at least one positioning member configured to prevent a separate feed member connected to the filter element from turning relative to the at least one flow opening.
7 more elements
A method for manufacturing a filter element, the method comprising the steps of:
- forming at least one filtering portion of the filter element of a solid-liquid filter fabric;
- forming a support element separate and distinct from the at least one filtering portion of the filter element, wherein the support element includes at least one positioning member configured to prevent a separate feed member connected to the filter element from turning relative to at least one flow opening of the filter element;
- fastening the support element to the at least one filtering portion of the filter element before the filter element is mounted to a filtering device;
- defining a polymer plate structure via the support element, whereby the structure of the support element differs from a structure of the solid-liquid fabric;
- using at least one of polypropylene or polyurethane as the material of the support element;
- arranging a side surface of the support element against a side surface of the solid-liquid filter fabric;
- and
- fastening said side surfaces of the support element and the solid-liquid filter fabric together via stitches.
5 more elements
An arrangement for solid-liquid filtering, the arrangement comprising:
- a filter element;
- and
- a feed member connected to the filter element,
- wherein the filter element comprises:
- at least one filtering portion made of a solid-liquid filter fabric;
- at least one flow opening;
- and
- at least one support element,
- wherein:
- the support element is a plate-like piece defining a polymer plate structure that differs from a structure of the solid-liquid filter fabric;
- the support element is made of at least one of polypropylene or polyurethane;
- the support element is permanently fastened to the solid-liquid filter fabric of the at least one filtering portion of the filter element via stitches;
- and
- the support element includes at least one positioning member configured to prevent the feed member from turning relative to the at least one flow opening.
11 more elements
Dependencies are inferred from the claim text.