A filter element has a fold pack with a filter material folded in a zigzag shape. The fold pack has lateral fold profiles and an end fold section disposed at a head side of the fold pack. Lateral strips are attached to the lateral fold profiles of the fold pack. A seal section angularly projects at an angle away from the end fold section at the head side of the fold pack. The seal section is provided with at least one incision or cutout configured to receive a corresponding filter housing contour. A filter assembly with such a filter element is provided. The filter housing has a housing part with a filter housing contour provided with at least one engagement element. The at least one incision or cutout of the seal section receives the at least one engagement element of the filter housing contour.

A filter system has a filter housing with a fluid inlet for inflow of a fluid into the filter housing. A filter element is removably received in the filter housing. The filter element has a folded filter medium and a stabilization ring attached to the filter medium and stabilizing the filter medium. The stabilization ring is arranged on the filter medium such that the stabilization ring, at least in sections, is arranged within an inflow cross section of the fluid inlet. The fluid directly flows against the filter medium in operation of the filter system.

A duct opening portion structure includes an air intake duct; a filter that is disposed in an opening portion at an air introduction side of the air intake duct; and a bezel that is disposed in the opening portion at the air introduction side of the air intake duct, the bezel being configured to support the filter. The bezel is attached to a vehicle body-side member, and the bezel includes a rib including a support portion configured to support the filter. The filter is attached to the support portion. The rib is provided with an extension portion having a length that allows the extension portion to be directly or indirectly pressed against a seal member provided at an edge of the opening portion in a state where the bezel is attached to the vehicle body-side member.

A gas turbine air intake system uses a filter element having a seal member with radial projections and radial recesses. The seal member forms a seal with components on the tube sheet of the system and at the end opposite of the tube sheet. At the end opposite of the tube sheet, there can be an assembly cover, or alternatively, an additional filter cartridge.

A filter element assembly (10) is disclosed comprising: a filter element (11) for location in a housing (12) of a filter (14), comprising a wall (15) of a filtration medium which defines a hollow space (16), for a gas stream to flow from the space through the wall, the filtration medium including a filtration layer (18), and a drainage layer (20) located outside the filtration layer, first (22) and second (24) end caps at opposite ends of the wall, one including a port (26) for a gas stream which communicates with the space; and a drainage promoter (56) comprising a fin (58) which can be fitted to the filter element so that it extends at least part way along the element, and compresses the drainage layer along at least part of its length, to promote drainage of liquid which has collected in the drainage layer.

The disclosure relates to a sealing arrangement comprising a gasket arranged to seal a gap formed between a first element and a second element, wherein the gasket is arranged to be located in the gap and to be in contact with the first and the second elements, where the gasket comprises two elongated gasket members located on a distance from each other so as to form an intermediate gasket space confined by the gasket members and said first and second elements, and in that the sealing arrangement further comprises a pressure source adapted to apply a pressure on the intermediate gasket space, said pressure source preferably being configured to maintain a set pressure difference towards the surroundings. The disclosure further relates to a method, a system, a computer program product arranged to perform the method, a further sealing arrangement and a further method of monitoring sealing integrity of a pharmaceutical production space.

An air cleaner system including a housing having a first housing end with an opening, a second housing end, and an inlet proximate the second housing end. The air cleaner system also includes a filter element removably installed within the housing through the opening, the filter element including filter media, a first endplate coupled to the filter media at a first filter end, an open second endplate coupled to the filter media at a second filter end, and an annular projection extending axially from the open second endplate, the annular projection sealing against the housing and creating an axial gap between the filter element and the housing.

The invention pertains to an air filter element comprising: a filter medium pack comprising a filter medium, said filter medium pack having an optionally substantially planar first side and an optionally substantially planar second side, said first side and second side optionally being parallel; and a guiding rim comprising a sealing surface having at least a radially oriented component, arranged on at least one of said first side and said second side, wherein a circumference of the or each guiding rim comprises at least one convex portion and at least one concave portion; and wherein a contour of said filter medium pack corresponds to said convex portion of said guiding rim and at least part of said concave portion. The invention also pertains to a method for producing an air filter element.

A filter element has a filter medium annularly surrounding a longitudinal axis of the filter element. The filter medium can be flowed through radially from an exterior to an interior and has a plurality of folds. A first end disk is arranged at a first end face of the filter element. A primary air passage and a secondary air passage are provided. The filter medium has an axial recess at the first end face. The first end disk has a channel forming the secondary air passage and extending in the axial recess. The plurality of folds include first folds in a region of the recess and second folds away from the recess. An axial length of the first folds is reduced relative to an axial length of the second folds. An air filter with such filter element and an assembly method for the air filter are provided.

The invention discloses a reticle storage device including a top lid, a bottom lid and a soft contact member. The top lid has a ceiling and a cover surrounding the ceiling. The bottom lid has a carrier and a peripheral structure surrounding the carrier. The soft contact member is configured to laterally extend in between the cover and the peripheral structure when the top lid and the bottom lid engage with each other, and to extend from an inside to an outside of the device in order to buffer the contact among the two lids.