A filter that includes: a filter base portion having a first main surface and a second main surface opposite to the first main surface, the filter base defining a plurality of through-holes communicating between the first main surface and the second main surface; and a support portion on the filter base portion, wherein the support portion includes: a main body portion on the first main surface and including a plurality of fixing portions in some of the plurality of through-holes; and a protruding portion protruding toward an outer side portion of the main body portion in a direction along the first main surface from a fixing portion located on a sidewall side of the main body portion among the plurality of fixing portions, and a thickness of the protruding portion is smaller than a thickness of the main body portion.

A liquid filtration system comprising a filtration tank with: a separating roof on which are mounted groups of hoses fixed to respective support plates; a fluid distributor plate comprising a central portion without perforations, and a peripheral portion with a plurality of perforations, said distributor plate being located between the hoses and a lower inlet duct for the water to be filtered comprising an upper opening for supplying liquid to the holes near the central portion of the distributor plate and a lower opening for supplying liquid to the holes of the peripheral portion which are furthest from the central portion. The filter comprises a filter material, an outlet duct for the filtered water at the upper area of the tank, a regeneration circuit of the filter medium; a filter self-cleaning circuit and a control panel.

A liquid filtration system comprising a filtration tank with: a separating roof on which are mounted groups of hoses fixed to respective support plates; a fluid distributor plate comprising a central portion without perforations, and a peripheral portion with a plurality of perforations, said distributor plate being located between the hoses and a lower inlet duct for the water to be filtered comprising an upper opening for supplying liquid to the holes near the central portion of the distributor plate and a lower opening for supplying liquid to the holes of the peripheral portion which are furthest from the central portion. The filter comprises a filter material, an outlet duct for the filtered water at the upper area of the tank, a regeneration circuit of the filter medium; a filter self-cleaning circuit and a control panel.

A disclosed screening apparatus includes a subgrid, and a screen element attached to the subgrid via laser welding at a plurality of attachment positions such that, under vibrational excitation, the screen element has a pre-determined profile of vibrational motion relative to the subgrid. The screen element may be attached at a maximal number of attachment locations to the subgrid to minimize relative motion of the screen element and the subgrid under vibrational excitation, or the screen element may be attached a sub-set of the maximal number of attachment locations to allow vibrational motion of the screen element relative to the subgrid. A disclosed method may include attaching a plurality of screen elements to a respective plurality of subgrids, attaching the plurality of subgrids to one another to form a screening pre-assembly, and cutting edges of the screening pre-assembly to form the screen assembly having a perimeter with a pre-determined shape.

A method of assembling a canister filter system includes inserting a first filter component into a second filter component, and continuing the insertion until a first tab of either the first filter component or the second filter component contacts the other of the first filter component and the second filter component.

A liquid filter for removing particles from a liquid, in particular from fuel or a urea solution, includes a first filter medium, a second filter medium, and a supporting frame including a supporting frame wall. The supporting frame wall includes first and front faces facing away from each other. The first filter medium is fastened to the first front face in a fluid-tight manner, and the second filter medium is fastened to the second front face in a fluid-tight manner. The supporting frame, the first filter medium, and the second filter medium enclose an interior space. The supporting frame includes a passage opening, a first filter element being situated in the interior space and being connected, in a fluid-conducting manner, to an exterior space of the liquid filter using the passage opening.

A liquid filter for removing particles from a liquid, in particular from fuel or a urea solution, includes a first filter medium, a second filter medium, and a supporting frame including a supporting frame wall. The supporting frame wall includes first and front faces facing away from each other. The first filter medium is fastened to the first front face in a fluid-tight manner, and the second filter medium is fastened to the second front face in a fluid-tight manner. The supporting frame, the first filter medium, and the second filter medium enclose an interior space. The supporting frame includes a passage opening, a first filter element being situated in the interior space and being connected, in a fluid-conducting manner, to an exterior space of the liquid filter using the passage opening.

The trap includes a container with a top opening covered by a lid. Inlet and outflow pipes extend through the lid into the container. A sheet of mesh filtration material (fiberglass, foam etc.) is situated within the container, below and preferably bonded to the interior surface of the lid. The inlet and outflow pipes extend through the filtration sheet into the container such that as the water level rises, sediment from the water flowing through the container settles to the bottom of the container and floating particles on the surface of the water which would otherwise be carried out of the trap with the water as the water exits the container remain in the filtration sheet.

The trap includes a container with a top opening covered by a lid. Inlet and outflow pipes extend through the lid into the container. A sheet of mesh filtration material (fiberglass, foam etc.) is situated within the container, below and preferably bonded to the interior surface of the lid. The inlet and outflow pipes extend through the filtration sheet into the container such that as the water level rises, sediment from the water flowing through the container settles to the bottom of the container and floating particles on the surface of the water which would otherwise be carried out of the trap with the water as the water exits the container remain in the filtration sheet.

A filter adapter removably attachable to a faucet assembly of a beverage server is disclosed. The filter adapter filters elements flowing from the beverage server and includes a body having an opening, an outlet passage, and a filter material. The filter material is seated inside the body through the opening and along the outlet passage. The filter material captures undesirable elements, thereby preventing these elements from dispensing into a beverage container.