Filter media, including those suitable for hydraulic applications, and related components, systems, and methods associated therewith are provided. The filter media described herein may include two or more layers, at least one of the layers having a relatively high percentage of microglass fibers. Additionally, the filter media may be designed such that the ratio of average fiber diameters between two layers is relatively small, which can lead to a relatively low resistance ratio between the layers. In some embodiments, at least one layer of the filter media comprises synthetic polymer fibers. Certain filter media described herein may have desirable properties including high dirt holding capacity and a low resistance to fluid flow. The media may be incorporated into a variety of filter element products including hydraulic filters.

An object of the present invention is to prevent precipitation of antimony metal comprised in a molten resin and to prevent product defects of a resin film made of the molten resin due to the contamination of the antimony metal. According to the present invention, a filter medium for filtration of a molten resin containing antimony is provided, and the filter medium is formed of a material not substantially comprising molybdenum.

A screen includes a framework of a first material having one or more openings therethrough defining a fluidic filter, and a substance of a second material positioned within the one or more openings in the framework and configured to be removable from the framework during an electrochemical reaction.

Provided is a filter assembly including at least one end cap and at least one retainer mechanically locked to the end cap in a cavity and defining a region into which the bonding agent can flow to form a mechanical interlock with the retainer. Even if the bonding agent does not fully adhere to the end cap, the filter media will be secured in the end cap via the mechanical interlock of the bonding agent and retainer, thereby preventing end cap separation from the element.

A filter element, useful for filtering molten metals and the like, is made from a precursor or template (10) having at least two layers (20). Each layer is assembled from three-dimensional geometric cages (22), joined in fixed relationship to each other: Some embodiments include a peripheral member (26) that encompasses the layer. In such cases, spacer members (28) can span the peripheral members to hold the layers in fixed spaced-apart relationship. In other embodiments, at least some of the cages in adjacent layers can be joined in fixed relationship, providing the spaced-apart relationship. The cages can be built from linear segments of a material joined in a pattern based on the edges of the geometric solid. The template may be formed by an automated technique, such as three-dimensional printing. If manufactured from a polymer, the precursor is coated with a ceramic slurry and calcined to provide the filter element.

A method of sealing a filter bag at the stitched joints of the filtration material, consisting in forming the filter bag out of at least one filtration material piece, whereupon the surface of at least one filtration material edge being joined is covered with a liquid or semi-liquid layer of a sealant in such a way that the filtration material edges being joined are in contact with one another at least on the surface covered with the sealant. After the sealant layer has been applied, the filter bag elements prepared beforehand are combined together permanently by sewing them with a thread. A filter bag formed of at least one filtration material piece whose edges (2) and (3) are joined together with a thread (5), with at least one stitch, is characterised by the fact that at the stitched places between the adjoining surfaces of the filtration material edges (2) and (3) being combined there is a sealant layer (4), applied before sewing.

Three dimensional nanoparticle filters are provided herein. In one embodiment a filter device includes a base material, alternating layers of sacrificial material between layers of structural material being deposited onto the base material to create a layered base material, and filter sidewalls etched into the deposited alternating layers of the layered base material to remove the layers of sacrificial material between the layers of structural material to form filter slots in the filter sidewalls as well as create channels between the filter sidewalls, where a size of the filter slots is selectable based on a thickness of the layers of sacrificial material utilized.

A system and method for positioning a pill to be ingested by a user in a field of view of an image acquisition camera. The method includes the steps of determining a desired location of the mouth of a user in a field of view of an image acquisition camera, determining a current position of a pill to be ingested by the user in the field of view of the image acquisition apparatus, and indicating on a display a movement to be made by the user to move the pill towards mouth of the user.

A method of manufacturing a last chance screen for an aircraft engine includes forming an array of holes through a metal sheet with a wire electrode using electrical discharge machining. The array of holes comprises a plurality of holes. Each hole of the plurality of holes comprises a first end and a second end and is surrounded by a wall section such that the last chance screen is defined by the plurality of holes and the plurality of wall sections. The first and second end of each hole are widened by either applying a flow of an abrasive flow medium to the array of holes in two directions or using a conical sinker electrode on either side of the metal sheet. Shaping the first and second end of each hole results in an airfoil-shaped cross-section of each wall section.

A method of making a filter or screen can include directed a high pressure cutting jet against a hard material at a plurality of positions to be cut that are separated by a portion of the material that is to remain uncut. Prior to moving from a first position to a second position, the abrasive can be replaced with a liquid or gaseous interference medium in such a way that reduces an energy density of the cutting jet from an energy density sufficient to remove or cut the material to an energy density insufficient to remove or cut the material. Once moved from the first position to the second position, the interference medium can be replaced with the abrasive in such a way that increases the energy density of the cutting jet from an energy density insufficient to remove the material to an energy density sufficient to remove the material.