A filter is disclosed. The filter includes a sheet of filter media defining a body having an upper portion, a lower portion, a first end surface proximate the upper portion, a second end surface proximate the lower portion, and a first side surface extending between the first and second end surfaces. One or more of the upper and lower portions define a ledge, wherein the ledge defines a third end surface arranged between the first and second end surfaces, and a second side surface extending between the first and third end surfaces; and a seal disposed upon the ledge. A method for manufacturing the seal is also disclosed.

Various embodiments provide for a filter assembly. The filter assembly includes a filter housing, a filter element, and a cover. The filter housing has a first housing end and a second housing end that define an internal cavity. The filter housing has a housing seal member formed on the second housing end. The filter element is disposed in the internal cavity. The filter element includes a filter media, an endplate, and a filter seal member. The filter media has a first media end and a second media end. The endplate is disposed at the first media end. The filter seal member is formed on the endplate. The filter seal member includes an inner seal portion and an outer seal portion. The filter seal member is configured to engage the housing seal member. The cover secures the engagement of the housing seal member and the filter seal member.

A method for producing a filter element provided with a sealing part in which the sealing material is introduced into a casting chamber between two tundish parts when in the non-cured state, and a compensation space connected to the casting chamber for the expansion of the sealing material.

A filter is disclosed. The filter includes a sheet of filter media defining a body having an upper portion, a lower portion, a first end surface proximate the upper portion, a second end surface proximate the lower portion, and a first side surface extending between the first and second end surfaces. One or more of the upper and lower portions define a ledge, wherein the ledge defines a third end surface arranged between the first and second end surfaces, and a second side surface extending between the first and third end surfaces; and a seal disposed upon the ledge. A method for manufacturing the seal is also disclosed.

In a method for molding a sealing device onto an end fold of a pleated bellows, wherein the end fold comprises an outer side and an inner side, the pleated bellows arranged in a casting shell assembly is embedded in a curable sealing material, limited at a rim of the pleated bellows by a casting chamber formed by the casting shell assembly. Expansion of the curable sealing material is reduced or prevented by a limitation element contacting the inner side of the end fold. A casting shell assembly has top and bottom casting shell parts forming a casting chamber to mold a sealing device onto the end fold of the pleated bellows by a sealing material. The bottom casting shell part has a channel for receiving the sealing material. The channel has an upwardly projecting limitation element for engaging an inner side of the end fold.

A filter box mounts to an air intake opening of an air handler. The filter box includes an inner shell, insulator, and an outer shell. The inner shell is adapted to confine one or more filters therein. The inner shell defines an airflow channel from a front end opening of the inner shell through the filter(s) to a rear end opening of the inner shell. The outer shell defines a chamber from a front end opening of the outer shell to a rear end opening of the outer shell. The outer shell contains the inner shell in the chamber and the insulator is sandwiched between the outer shell and the inner shell. The inner shell and the outer shell are separated and spaced apart all over by the insulator and the insulator insulates and seals the inner shell from the outer shell.

An air filter arrangement is disclosed. The air filter arrangement includes media comprising corrugated media secured to facing media and defining a media pack having opposite flow faces. Media pack arrangements including such media are described. Also described are filter cartridges including such media packs and air cleaners including the filter cartridges. Advantageous housing seal arrangements having a pinch seal member and forming a trough are described. Methods of assembly and use are also provided. Also, systems of use are described.

According to the present disclosure, features, components and techniques useable for providing air cleaner arrangements are provided. Many of the features relate to an axial seal arrangement provided on a filter cartridge. A typical filter cartridge, for use with these features, is a filter cartridge having opposite flow ends. Example media arrangements that fit this characterization are described. Seal arrangements provided with an axial housing sealing engagement surface are shown. A seal arrangement is provided. Also, air cleaner assemblies having advantageous features therein are provided. Further, air cleaner housings are described, with selected, preferred features for engagement with filter cartridges.

An air filter arrangement is disclosed. The air filter arrangement includes media comprising corrugated media secured to facing media and defining a media pack having opposite flow faces. Media pack arrangements including such media are described. Also described are filter cartridges including such media packs and air cleaners including the filter cartridges. Advantageous housing seal arrangements having a pinch seal member and forming a trough are described. Methods of assembly and use are also provided. Also, systems of use are described.

A filter assembly for filtering a flow of incoming air entering a pressurized breathing gas system includes a filter housing and a filter media. The filter media includes a filtering section and a non-filtering section. The filter housing is structured to be inserted within a pressure generating device used in the pressurized breathing gas system. The filtering section is disposed within the filter housing and is structured to filter contaminant matter from the flow of incoming air. The non-filtering section is disposed outside of the housing and is structured to be separated from the filtering section so as to not make contact with the flow of incoming air. The filtering section and the non-filtering section are structured to be visually compared to one another such that a contaminant matter saturation level of the filter media can be determined.