Abstract: A device and system for purifying a fluid is provided. The system includes a tank having an interior space and a media container disposed within the interior space. A valve is provided that cooperates with an element within the interior, the valve being movable between an open and a closed position. The valve being biased to the open position when the element is not positioned within the interior space, wherein the interior space is fluidly coupled to the atmosphere in the open position. The valve further being configured to move to a closed position when the element is positioned within the interior space.

Abstract: A device and system for purifying a fluid is provided. The system includes a tank having an interior space and a media container disposed within the interior space. A valve is provided that cooperates with an element within the interior, the valve being movable between an open and a closed position. The valve being biased to the open position when the element is not positioned within the interior space, wherein the interior space is fluidly coupled to the atmosphere in the open position. The valve further being configured to move to a closed position when the element is positioned within the interior space.

Abstract: A method, social services data management system, and computer program product for managing data about social services. In response to receiving the data about the social services provided to a group of clients at a data collection application running on a computer system, the data collection application running on the computer system places the data into a first database in a first format using a content model identifying entities for the social services and relationships between the entities. The computer system changes the data in the first database from the first format to a second format used by a second database. The computer system moves the data in the second format to the second database. A report application running on the computer system generates a number of reports using the data in the second format in the second database.

Abstract: Plate-and-glass or -container assemblies in which integrally formed or separately fabricated arrays of glass holder components are employed to detachably couple a glass or other container to the plate of the assembly. The container may be of the ubiquitous screw-top type, and other mechanisms for detachably assembling a container of this type to a plate are disclosed.