A portion pack for producing a beverage includes a container made of filter material in which an extraction material is arranged. The container has an upper side and a pivotable edge portion that is initially arranged in a closed position to close the upper side of the container. A supporting body encloses at least regions of the container. The container is held closed by a closure mechanism which is adapted to be releasable by moistening the supporting body with water to cause the pivotable edge portion to pivot upwardly to a beverage preparation position in which the upper side of the container is open. The invention also relates to a method for producing a beverage using such a portion pack.

An apparatus for filtering a suspension has a housing with an inlet receiving the suspension to be filtered, an outlet for the clear filtered filtrate, and a drain for removal of filter cake. The housing has a cylindrical part centered on an axis. An output ring pipe is connected to the outlet and externally surrounds the cylindrical part. A plurality of segmental filter holders are fittable into the cylindrical part from above and together form a circular insert with each holder forming an inlet chamber having an outflow fitting connectable to the annular output pipe. Respective sets of filter elements each formed by a respective strip-shaped support and a mesh filter sock surrounding the support are carried on the holder and open into the respective inlet chambers. A removable cover upwardly closes the cylindrical part above the inserts.

An apparatus for filtering a suspension has a housing with an inlet receiving the suspension to be filtered, an outlet for the clear filtered filtrate, and a drain for removal of filter cake. The housing has a cylindrical part centered on an axis. An output ring pipe is connected to the outlet and externally surrounds the cylindrical part. A plurality of segmental filter holders are fittable into the cylindrical part from above and together form a circular insert with each holder forming an inlet chamber having an outflow fitting connectable to the annular output pipe. Respective sets of filter elements each formed by a respective strip-shaped support and a mesh filter sock surrounding the support are carried on the holder and open into the respective inlet chambers. A removable cover upwardly closes the cylindrical part above the inserts.

A filtration vessel, having within constituent filter media is formed using plastic injection molding to meet the interior specifications of a high-pressure filtration encasement system while remaining a separate replaceable component. The encasement system supports and encases walls of the filtration vessel enabling the vessel to be designed with sufficient strength and resiliency to form a seal and constrain filter media prior to and after use without necessitating construction to endure independent high-pressure operations. The bottom or base of the vessel includes a plurality of holes through which the filtrate may flow. Interposed between the base of the vessel and the filter media is a semi-permeable barrier imbedded into the injection molded walls and base of the vessel. The barrier prevents residue from contaminating the filtrate.

The disposable polymer-structured filtering kit includes a disposable, polymer-structured filtering funnel with a stem having a distal tip. A flow discharge end is formed at the distal tip. Preferably, a polymer fritted filter disc is positioned in the funnel, providing filtering for liquids passing therethrough. The kit preferably also includes a glass vacuum take-off adapter having a port for connecting to a vacuum source for providing negative pressure. The adapter securely and snuggly receives the funnel and maintains position of the distal tip thereof with the flow discharge end below the port, thus preventing contaminants from entering the adapter. A reusable, glass round bottle flask or a disposable vial receives the adapter and the stem of the funnel. The funnel and fritted disc are formed from disposable materials, thus removing the necessity of cleaning them following use. The adapter is reusable, since no contaminants come in contact therewith during filtering.

The disposable polymer-structured filtering kit includes a disposable, polymer-structured filtering funnel with a stem having a distal tip. A flow discharge end is formed at the distal tip. Preferably, a polymer fritted filter disc is positioned in the funnel, providing filtering for liquids passing therethrough. The kit preferably also includes a glass vacuum take-off adapter having a port for connecting to a vacuum source for providing negative pressure. The adapter securely and snuggly receives the funnel and maintains position of the distal tip thereof with the flow discharge end below the port, thus preventing contaminants from entering the adapter. A reusable, glass round bottle flask or a disposable vial receives the adapter and the stem of the funnel. The funnel and fritted disc are formed from disposable materials, thus removing the necessity of cleaning them following use. The adapter is reusable, since no contaminants come in contact therewith during filtering.

A connection mechanism for a suction device for vacuum membrane filtration applications, includes a support for receiving a membrane filter or a filtration base, a cavity formed below the membrane filter or the filtration base, a suction duct which opens centrally into the cavity, and a ventilation duct which opens laterally into the cavity. The connection mechanism further includes a closing element which can be moved into several switching positions and which can block or unblock both the suction duct and the ventilation duct depending on the switching positions.

Provided herein are animal waste collecting animal containment cages for collecting and separating feces and urine from an animal or animals. Also provided herein are animal waste collecting animal containment cages that are disposable and are for single use. Also provided herein are animal waste collecting animal containment cages that are disposed within a rack. Also provided herein are methods of using and manufacturing an animal waste collecting animal containment cage.

Provided herein are animal waste collecting animal containment cages for collecting and separating feces and urine from an animal or animals. Also provided herein are animal waste collecting animal containment cages that are disposable and are for single use. Also provided herein are animal waste collecting animal containment cages that are disposed within a rack. Also provided herein are methods of using and manufacturing an animal waste collecting animal containment cage.

The present invention relates to: an improved metal filter having a plurality of apertures which are micropores having a taper shape by which the diameters thereof become narrower from an upstream end towards a downstream end in a state where the directions of the apertures are perpendicular to, or are at an acute angle with respect to the flowing direction of a fluid containing solid foreign substances; and a permanent filter assembly having a filtering pipe connected, in the form of a pitot tube, part-way along a flow pipe in which the fluid containing foreign substances flows, and having the improved metal filter communicatably mounted on the upstream end of the filtering pipe.