Filter media and filter element with adhesive reinforcing

Patent metadata

Field	Value
Publication number	US-10569211-B2
Application number	US-201715795573-A
Country	US
Kind code	B2
Filing date	Oct 27, 2017
Priority date	Oct 10, 2014
Publication date	Feb 25, 2020
Grant date	Feb 25, 2020

Abstract

A method of reinforcing a filter media pack as well as a reinforced media pack is provided. The method includes forming a media pack to have an inlet face and an outlet face. The method includes applying a reinforcing agent to the media pack. The reinforcing agent is applied in a flowable state. The method also includes hardening the reinforcing agent to form a reinforcing structure to reinforce the media pack. Filter element having such a reinforcing structure is also provided.

First claim

What is claimed is:

1. A filter media pack comprising:
filter media having an inlet face and an outlet face,
the media pack is z-media having a plurality of adjacent layers of fluted filter media defining the inlet face and the outlet face, each layer including a corrugated sheet and a facer sheet attached to the corrugated sheet, the fluted filter media forming a plurality of inlet and outlet flutes extending between the inlet and outlet faces;
the inlet flutes have an open end proximate the inlet face and a closed end proximate the outlet face closed by outlet end sealant and the outlet flutes have a closed end proximate the inlet face closed by inlet end sealant and an open end proximate the outlet face;
a first portion of corrugated sheet being attached to a first portion of a facer sheet by the outlet end sealant;
a second portion of a corrugated sheet being attached to a second portion of a facer sheet by the inlet end sealant;
a third portion of a corrugated sheet being attached to a third portion of a facer sheet by a reinforcing agent the third portion of a corrugated sheet and the third portion of a facer sheet are not otherwise attached to one another by the inlet sealant or the outlet sealant; and
wherein:
the outlet end sealant is axially offset from the outlet face and the first portion of a corrugated sheet and a first portion of a facer sheet is axially offset from the outlet face along an axis parallel to the inlet and outlet flutes;
the third portion of a corrugated sheet and the third portion of a facer sheet being positioned axially between the outlet face and the outlet end sealant.

2. The filter media pack of claim 1 , wherein the reinforcing agent extends between the outlet face and the outlet end sealant and is in contact with the outlet end sealant.

3. A filter media pack comprising:
filter media having an inlet face and an outlet face,
the media pack is z-media having a plurality of adjacent layers of fluted filter media defining the inlet face and the outlet face, each layer including a corrugated sheet and a facer sheet attached to the corrugated sheet the fluted filter media forming a plurality of inlet and outlet flutes extending between the inlet and outlet faces;
the inlet flutes have an open end proximate the inlet face and a closed end proximate the outlet face closed by outlet end sealant and the outlet flutes have a closed end proximate the inlet face closed by inlet end sealant and an open end proximate the outlet face;
a first portion of a corrugated sheet being attached to a first portion of a facer sheet by the outlet end sealant;
a second portion of a corrugated sheet being attached to a second portion of a facer sheet by the inlet end sealant;
a third portion of a corrugated sheet being attached to a third potion of a facer sheet by a reinforcing agent, the third portion of a corrugated sheet and the third portion of a facer sheet are not otherwise attached to one another by the inlet sealant or the outlet sealant; and
wherein:
the inlet end sealant is axially offset from the inlet face and the second portion of a corrugated sheet and a second portion of a facer sheet is axially offset from the inlet face along an axis parallel to the inlet and outlet flutes;
the third portion of a corrugated sheet and the third portion of a facer sheet being positioned axially between the inlet face and the inlet end sealant.

4. The filter media pack of claim 3 , wherein the reinforcing agent extends between the inlet face and the inlet end sealant and is in contact with the inlet end sealant.

5. A filter media pack comprising:
filter media having an inlet face and an outlet face,
the media pack is z-media having a plurality of adjacent layers of fluted filter media defining the inlet face and the outlet face, each layer including a corrugated sheet and a facer sheet attached to the corrugated sheet, the fluted filter media forming a plurality of inlet and outlet flutes extending between the inlet and outlet faces;
the inlet flutes have an open end proximate the inlet face and a closed end proximate the outlet face closed by outlet end sealant and the outlet flutes have a closed end proximate the inlet face closed by inlet end sealant and an open end proximate the outlet face;
a first portion of corrugated sheet being attached to a first portion of a facer sheet by the outlet end sealant;
a second portion of a corrugated sheet being attached to a second portion of a facer sheet by the inlet end sealant;
a third portion of a corrugated sheet being attached to a third portion of a facer sheet by a reinforcing agent, the third portion of a corrugated sheet and the third portion of a facer sheet are not otherwise attached to one another by the inlet sealant or the outlet sealant; and
wherein the reinforcing agent is also applied to the first portion of a corrugated sheet and the first portion of a facer sheet.

6. The filter media pack of claim 5 , wherein the reinforcing agent extends axially from the third portion of a corrugated sheet and the third portion of a facer sheet to the first portion of a corrugated sheet and the first portion of a facer sheet.

7. The filter media pack of claim 5 , wherein the first portion of a corrugated sheet and the first portion of a facer sheet are at a same axial location along the flutes between the inlet and outlet faces as the third portion of a corrugated sheet and the third portion of a facer sheet.

8. A filter media pack comprising:
filter media having an inlet face and an outlet face,
the media pack is z-media having a plurality of adjacent layers of fluted filter media defining the inlet face and the outlet face, each layer including a corrugated sheet and a facer sheet attached to the corrugated sheet, the fluted filter media forming a plurality of inlet and outlet flutes extending between the inlet and outlet faces;
the inlet flutes have an open end proximate the inlet face and a closed end proximate the outlet face closed by outlet end sealant and the outlet flutes have a closed end proximate the inlet face closed by inlet end sealant and an open end proximate the outlet face;
a first portion of a corrugated sheet being attached to a first portion of a facer sheet by the outlet end sealant;
a second portion of a corrugated sheet being attached to a second portion of a facer sheet by the inlet end sealant;
a third portion of a corrugated sheet being attached to a third portion of a facer sheet by a reinforcing agent the third portion of a corrugated sheet and the third portion of a facer sheet are not otherwise attached to one another by the inlet sealant or the outlet sealant; and
wherein the reinforcing agent is also applied to the second portion of a corrugated sheet and the second portion of a facer sheet.

9. The filter media pack of claim 8 , wherein the reinforcing agent extends axially from the third portion of a corrugated sheet and the third portion of a facer sheet to the second portion of a corrugated sheet and the second portion of a facer sheet.

10. The filter media pack of claim 8 , wherein the second portion of a corrugated sheet and the second portion of a facer sheet are at a same axial location along the flutes between the inlet and outlet faces as the third portion of a corrugated sheet and the third portion of a facer sheet.

11. A filter media pack comprising:
filter media having an inlet face and an outlet face,
the media pack is z-media having a plurality of adjacent layers of fluted filter media defining the inlet face and the outlet face, each layer including a corrugated sheet and a facer sheet attached to the corrugated sheet, the fluted filter media forming a pluralit

Assignees

• Baldwin Filters Inc

Inventors

• Merritt Steven J
• Krull Timothy L

Classifications

• B01D2239/0464

  Impregnants · CPC title

• B01D2271/022

  Axial sealings · CPC title

• B01D46/525 Primary

  which comprises flutes · CPC title

• B01D46/527 Primary

  in wound arrangement · CPC title

• B01D46/0001

  Making filtering elements · CPC title