Abstract: A container system includes a case member extending between a first end and an opposite second end and including a hollow interior. A driving member is rotatable relative to the case member, and a first engagement member is engaged with the driving member. A second engagement member is positionable in the hollow interior of the case member and configured to engage with a dispensable material positionable in the hollow interior. The first engagement member and the second engagement member are configured to releasably engage with one another in an arrangement where rotation of the driving member relative to the case member moves the first engagement member and the second engagement member in the hollow interior relative to the case member.

Abstract: In one embodiment, a container includes a housing assembly and an insert assembly. Each component of the housing assembly may designed to be reused, and each component of the insert assembly may be designed to be reused, recycled, or composted, depending on the materials employed for construction. Reusable components of the container may be constructed of non-reactive, durable materials that are not susceptible, or at least resistant, to rust and/or corrosion. Example materials for the reusable components include stainless steel, aluminum, carbon fiber, various types of polymers, and silicone. The container may be designed to allow simple and complete assembly and disassembly. The reusable parts may be cleaned, replaced, or repaired, as needed, and recyclable or compostable parts may be separated and cleaned in preparation for recycling or composting.

Abstract: Skimming devices may use pressurized water from, for example, a return line of a swimming pool or spa. The devices may be adjustable vertically and levelled relative to an upper water surface (waterline) of a pool. They additionally may create “blades” of debris-laden pool water entering their floating heads so as to move debris smoothly and efficiently over wings or foils into associated filters.

Abstract: Skimming devices may use pressurized water from, for example, a return line of a swimming pool or spa. The devices may be adjustable vertically and levelled relative to an upper water surface (waterline) of a pool. They additionally may create “blades” of debris-laden pool water entering their floating heads so as to move debris smoothly and efficiently over wings or foils into associated filters.