Filter module for the separation of overspray

Patent metadata

Field	Value
Publication number	US-12478907-B2
Application number	US-202217893199-A
Country	US
Kind code	B2
Filing date	Aug 23, 2022
Priority date	Aug 24, 2021
Publication date	Nov 25, 2025
Grant date	Nov 25, 2025

Abstract

A filter module, including a plurality of filter elements for separating overspray from an air flow, the filter module including a reusable and cleanable frame configured as a support structure for components for collecting overspray, and a plurality of components inserted into the frame for collecting overspray, wherein the components for collecting overspray are at least filter elements and linings in the frame, which are configured as disposable, single-use products the filter elements form at least a first filter stage, and all the surfaces of the frame which are exposed to the air flow upstream of the first filter stage are provided with the linings such that the surfaces of the frame are protected against overspray.

First claim

The invention claimed is:

1 . A filter module, comprising a plurality of filter elements for separating overspray from an air flow, the filter module comprising:
a reusable and cleanable frame configured as a support structure for components for collecting overspray, and the components inserted into the frame for collecting overspray, wherein:
the components for collecting overspray are at least the plurality of filter elements and linings in the frame, which are configured as disposable, single-use products,
the plurality of filter elements form at least a first filter stage, and
all the surfaces of the frame which are exposed to the air flow upstream of the first filter stage are provided with the linings such that the surfaces of the frame are protected against overspray.

2 . The filter module according to claim 1 , wherein the surfaces of the frame comprising the linings which are exposed to the air flow are an upper inflow region of the frame and a region at a base of the frame.

3 . The filter module according to claim 1 , wherein the plurality of filter elements are formed from cardboard, paperboard or paper and/or wherein the linings are formed from cardboard, paperboard or paper, plastic sheets or foils.

4 . The filter module according to claim 1 , wherein the surface of the linings is provided with flow obstacles for optimized separation of overspray.

5 . The filter module according to claim 1 , wherein the plurality of filter elements include filter mats made of a synthetic nonwoven material.

6 . The filter module according to claim 1 , wherein:
a plurality of filter elements of a first type are arranged parallel to one another and form the first filter stage, a plurality of filter elements of a second type are arranged parallel to one another and form a second filter stage, and the first and second filter stages are directly adjacent to one another.

7 . The filter module according to claim 1 , wherein the frame has supporting surfaces for the plurality of filter elements and the supporting surfaces have a low surface energy.

8 . The filter module according to claim 1 , wherein the components for collecting overspray comprise a wall on the frame.

9 . The filter module according to claim 1 , wherein the frame has an air inlet and an air outlet, and wherein an air conduit from the air inlet to the air outlet is formed by the frame and the components for collecting overspray.

10 . The filter module according to claim 9 , wherein the air conduit has an air channel which, when viewed in the direction of flow, is positioned between the air inlet and the plurality of filter elements, and wherein the air channel is funnel-shaped.

11 . The filter module according to claim 1 , wherein the frame is made of aluminum sections and the aluminum sections are clad with aluminum sheet.

12 . The filter module according to claim 1 , comprising a breaking device is configured to break adhesions of overspray on the filter module and to facilitate replacement of the plurality of filter elements.

13 . The filter module according to claim 2 , comprising, on an upper side of the base of the frame, a collection pan for collecting liquid.

14 . The filter module according to claim 1 , comprising a device having two recesses, the device having two recesses arranged on the underside of a base of the frame for insertion of forks of an industrial truck, and wherein the device is configured in as a Euro-pallet.

15 . The filter module according to claim 8 , wherein the wall is made of cardboard, paperboard, or paper.

16 . The filter module according to claim 13 , wherein the collection pan comprises an open flap for insertion of the plurality of filter elements.

Assignees

• Freudenberg Carl Kg

Inventors

• Schumacher Sascha
• Schneider Silvan
• Becker Juergen
• Ewald Christian
• Westenburger Christian

Classifications

• B01D2267/40

  Different types of filters · CPC title

• B01D2239/0618

  Non-woven · CPC title

• B01D46/4209

  Prevention of static charge, e.g. by grounding · CPC title

• B01D46/0031

  with collecting, draining means · CPC title

• B01D39/16

  of organic material, e.g. synthetic fibres · CPC title