A method for manufacturing a filter (1) for gas masks includes providing a flat paper and folding the paper into a pleated preform. The filter element (2) is separated from the pleated preform (6) and is inserted into a housing (3). The inserted filter element (2) is connected to the housing (3) at least at some points. This filter elements (2) may have a polygonal outer contour, upon separating the element from the pleated filter preform (6). A foam and/or an adhesive is applied to an outer edge of the filter element (2), arranged on the circumference of the filter element, for an at least partial sealing of an edge (5). This establishes a connection to the housing (3) in at least some sections.

A controller of a fuel system for a vehicle is provided in which heat is dissipated outside from a printed circuit board to cool the controller. The dissipated heat is utilized to maximize the efficiency of the purge operation using a canister by waste heat. The controller is integrated with an air filter for removing foreign substances from air to be suctioned into a canister, and is configured to realize heat exchange between air passing through the air filter and a motor driver.

The present disclosure relates to a filter element comprising a filter medium pack and a support arrangement comprising at least a shell member, and wherein a portion of the shell member is thermally welded to a circumferential face of the filter medium pack. The present disclosure further relates to a method of manufacturing such a filter element, the method comprising heating at least a portion of the shell member of the support arrangement, positioning the shell member around the circumferential face of the filter medium pack, pushing the heated circumferential portion of the shell member against the circumferential face of the filter medium pack, and allowing the circumferential portion of the shell member to cool down.

A build material container for use in 3D printing includes a reservoir to hold build material and a build material outlet structure. The container also includes a throughput structure to allow air to enter into the reservoir through the throughput opening, wherein said throughput opening provides access to build material in and out of the reservoir.

An additive manufacturing build material container comprises a reservoir to hold build material and a build material outlet structure. The container also includes a throughput structure to allow air to enter into the reservoir through the throughput opening, wherein said throughput opening provides access to build material in and out of the reservoir.

An air cleaner includes a case, an air inlet, an air outlet, a grill covering the air inlet to filter airborne oil droplets, a fan to suction air through the air inlet and discharge air out of the air outlet, a roll filter provided between the grill and the fan to filter oil mist, and a filter roller to cut the roll filter. The roll filter includes a roller and a filter sheet wound around the roller, and the filter sheet may be unwound to extend behind the grill. When the filter sheet becomes dirty, the roll filter is further unwound so that a clean section is provided behind the grill, and the filter cutter may cut off the dirty section. During cutting, a clamp holds down the filter sheet. The case includes a slit through which the dirty section of the filter sheet passes for discarding.

An air duct filter apparatus for filtering air discharged from an air duct into a room, vehicle or other space at a duct opening in a surface. The apparatus has a venting device, such as a register or vent, that fits within the duct opening. A pair of filter brackets on the venting device support an air filter behind a venting area, typically having louvers, of the venting device. Preferably, the air filter is sized to frictionally engage the filter brackets so it will be held in place but be easily removable from the brackets. A pair of duct brackets are mounted to the surface on opposite sides of the duct opening. A connecting mechanism connects the venting device with the duct brackets in a manner that allows the venting device to be pulled away from the surface to inspect, clean or replace the air filter without using tools.

A method for manufacturing a filter (1) for gas masks includes providing a flat paper and folding the paper into a pleated preform. The filter element (2) is separated from the pleated preform (6) and is inserted into a housing (3). The inserted filter element (2) is connected to the housing (3) at least at some points. This filter elements (2) may have a polygonal outer contour, upon separating the element from the pleated filter preform (6). A foam and/or an adhesive is applied to an outer edge of the filter element (2), arranged on the circumference of the filter element, for an at least partial sealing of an edge (5). This establishes a connection to the housing (3) in at least some sections.

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 present disclosure relates to a filter element comprising a filter medium pack and a support arrangement comprising at least a shell member, and wherein a portion of the shell member is thermally welded to a circumferential face of the filter medium pack. The present disclosure further relates to a method of manufacturing such a filter element, the method comprising heating at least a portion of the shell member of the support arrangement, positioning the shell member around the circumferential face of the filter medium pack, pushing the heated circumferential portion of the shell member against the circumferential face of the filter medium pack, and allowing the circumferential portion of the shell member to cool down.