A rotary vessel for a filter assembly is rotatably mountable in a housing of the filter assembly and has a body having an open end, a cover receivable on the body to close the open end, and a releasable locking device that is manually operable to selectively lock and unlock the cover relative to the body.

A liquid cleaning element has a cleaning medium and a carrier medium connected to each other. The carrier medium is provided with a liquid connector to connect to a line for liquid to be cleaned or cleaned liquid. The liquid cleaning element has a bend in a section provided with the cleaning medium and the carrier medium. The carrier medium, prior to connection to the cleaning medium, is pre-manufactured in a final shape of the liquid cleaning element. The liquid connector has a cylindrical suction socket and is arranged at or integrated in the carrier medium. A liquid cleaning system is provided with the liquid cleaning element and a holder holding the liquid cleaning element. In a method for producing the liquid cleaning element, the carrier medium is pre-manufactured in a final shape of the liquid cleaning element and the cleaning medium is connected to the pre-manufactured carrier medium.

Certain embodiments include a screen assembly of a vessel, where the screen assembly includes a plurality of fixed elements and a retainer, and the retainer includes a ring, a plurality of wedges disposed about the ring, and a plurality of keyholes at spaced locations about the ring. Each keyhole includes a bore and a slot extending from the bore into an adjacent wedge of the plurality of wedges, the slots have a width less than the bores, and the retainer may receive the fixed elements through the bores and may be rotated in a relation with the plurality of fixed elements to bring the plurality of fixed elements into simultaneous engagement with the wedges.

A filter attachment body is attached to a vehicle body of a work vehicle provided with a pump. The filter attachment body includes a bracket attached to the vehicle body, a filter device attached to the bracket, and a plurality of elastic members interposed between the bracket and the filter device. The bracket has an attachment plate to which the filter device is attached. The attachment plate is disposed substantially perpendicular to an up-down direction. The filter device has a filter case connected to the pump, and a filter body attached to the filter case. A geometric center of the filter body overlaps a figure drawn by linking the elastic members with straight lines when viewed from a top view of the attachment plate. At least a portion of at least one of the elastic members is located outside of the filter body when viewed from the top view.

A safety system for a fish-tank siphon is an apparatus used to prevent suction of a fish-tank-cleaning siphon from becoming obstructed by fish, underwater plant life, rocks, or other large tank contaminants. The apparatus is configured to protect the intake by preventing potential obstructions from entering the siphon at all. The apparatus includes a grate, a mating mechanism, and a siphon inlet. The grate acts as a protective filter, preventing large items from entering a connected fish-tank-cleaning siphon. The mating mechanism allows for connection of the present invention to a fish-tank-cleaning siphon. The siphon inlet is a section of the fish-tank-cleaning siphon through which the vacuum is applied in order to remove dirty water and water contaminants. The general configuration of these components allows the apparatus to prevent a fish-tank-cleaning siphon from incidentally collecting fish or other underwater creatures, plant life, pebbles, or other contaminants while vacuum-cleaning a fish tank.

A filterwell cartridge holder mountable within a hot tub filterwell with the filterwell cartridge holder having a handhold on one end and a feed pipe connector on an opposite end that is attachable to or removable from a filterwell feed pipe with the filterwell cartridge holder engaging and supporting dispensing cartridges thereon to maintain the dispensing cartridges in a dispensing mode within the filterwell.

A filterwell cartridge holder having a face for compressible engaging pleats on a water filter cartridge and a further face holding a dispensing cartridge thereon in a position to release dispersants into a filterwell containing a water filter cartridge.

A device and system for purifying a fluid is provided. The device includes a tank having a hollow interior and a lock feature. A cover is sealingly coupled to the tank. A release assembly is pivotally coupled to the cover and engaged with the lock feature, the release assembly having a relief valve fluidly coupled to the hollow interior and a lock member, the release assembly being rotatable between a first position and a second position, wherein the relief valve is in a closed position and the lock member is engaged with the lock feature in the first position, and wherein the relief valve is open and the lock member rotates away from and is disengaged from the lock feature in the second position.

A modular support structure comprising multiple chord or arc modules configured to selectively fixedly engage adjacent modules to define a completed annular support structure configured to support a rotary element of a rotary filter. The modular chord or arc segments may fixedly engaged an adjacent chord or arc segment through a fixing mechanism selected from the group consisting of: fasteners, clamps, pins, bolts, locks, locking mechanisms, key and socket mechanisms, spot welding, welding, adhesives, and other fastening mechanisms configured to engage and disengage adjacent chord or arc modules with ease.

A filter assembly for an engine, has: a housing having a longitudinal axis and defining an internal volume, the housing having an open end; and a cartridge assembly receivable within the internal volume via the open end of the housing and securable to the housing, the cartridge assembly including a filter cartridge, a cover removably secured to the filter cartridge, and a sealing member between the cover and the filter cartridge, a locking engagement between the cover and the filter cartridge to limit an axial movement of the cover relative to the filter cartridge upon removal of the cartridge assembly from the housing.