A filter press includes a frame, a hydraulic system for compressing and releasing filter plates, the filter plates, a filter chamber, a feed pump, a high-pressure clean water pump, a control system, a rotating plate, a cake removal knife, a squeeze disc, a squeeze disc sleeve, a drive shaft, a brake, a left pull rod, a right pull rod, a pull rod disc, a connector and clutches. The filter cake in the entire filter press can be removed without opening the filter plates in sequence. The filter cake washing is carried out in an enclosed room in a normal direction and a reverse direction, which can not only maintain the dryness and cleanness of the working environment, but also can effectively collect, process treat and recycle the washing water, thus achieving the zero discharge of waste water to meet the environmental requirements at a low cost.

A backing net for a filter media is disclosed. The backing net includes a plurality of longitudinal beams and at least one cross beam. The height of at least one of the longitudinal beams varies along the length of the longitudinal beam such that said height is reduced towards the first end thereof. A filter media and a V-type filter including such backing net are also disclosed.

A V-type filter frame is disclosed for receiving a filter media pack. The V-type filter frame is arranged to be mounted to a filter bank grid and includes first and second gable plates and a front plate coupled thereto. The gable plates each include an abutment surface extending outwardly from an outer surface arranged to abut a filter bank grid when mounted thereto. A filter frame assembly and a method for assembling a filter bank are also disclosed.

A filter assembly, a filter cartridge and method of filter fluid are provided. The filter assembly includes a filter base, a filter housing and a filter cartridge within the housing. The filter cartridge strips water from the dirty fluid flowing through the assembly. The filter cartridge defines a pair of fluid flow paths extending through a central cavity thereof. The fluid flow paths carry and keep separated a flow of cleaned fluid after it passes through filter media of the cartridge as well as the water that has been stripped from the dirty fluid flow.

A liquid additive supply device for a washing machine that can be removably accommodated in an accommodation part of a detergent dispenser. The liquid additive supply device includes a storage part for storing a liquid additive to be supplied to a detergent dispenser during a wash cycle. A filter is installed inside the storage part for filtering extraneous material.

A liquid filter having a housing and a hollow insert. The housing has a dirty liquid feed, a clean liquid outlet and a drainage channel, and is closed by a detachable cover. In the channel, a valve is arranged, having a valve body axially displaceable between a closed and an open position. The cover on the housing presses the valve body into the closed position. When the cover is removed from the housing, the valve body is carried to its open position and then is detachable from the cover or insert and is retainable in its open position by a spring holding element. The holding element automatically expands into the opening position by spring force and engages a spring element restraint holding the valve body in its open position. A force contracts the spring element, displacing the valve body in the closing direction, releasing engagement with the spring restraint.

A filter appliance may include a filter housing and a ring filter element having an axis and being mountable in the filter housing. The filter element may include a first axial end disc having a protruding pin configured to engage into a channel of the filter housing. The filter housing may have an interior including a first region and the ring filter element may include a second region associated with the first region. A guide contour may be arranged on one of the first region and the second region, and a first guide element and a second guide element may be disposed on the other of the first region and the second region. The guide contour may include a first axial groove and a second axial groove configured to receive the first guide element and the second guide element to define a key and lock interaction.

A fuel filter assembly includes a filter housing defining a cavity, a center stack having a base component and a top portion. The center stack is positioned within the cavity of the filter housing and attached to the housing, the center stack having an axial aperture in the top portion, the axial aperture having a circumferential surface, and a fuel filter. The fuel filter includes a filter base, an end cap having a top surface and a bottom surface opposite the top surface, an axial extension that extends from the bottom surface, and at least one prong attached to the axial extension, the at least one prong having an axial surface facing away from the top surface that axially locates the fuel filter in the housing against the circumferential surface, a filter element attached to the bottom surface of the end cap, and a pin attached to a filter base.

A dishwashing appliance with a shrouded filtration assembly for removing dishwashing sediment from recirculated dishwashing fluid is provided. The dishwashing appliance may include a tub, a spray system, a recirculation pump, a drainage pump, and a shrouded filtration assembly in fluid communication with the spray system, the recirculation pump, and the drainage pump. The shrouded filtration assembly may include a lid, a filter frame, and a sump housing.

A two-stage filtering system including a first and second filter container. The first filter container has a first filter assembly with a foam filter sleeve enveloping a fluid intake device, a connected valve, and transfer tubing. The second filter includes a pump connected to a spout, a second stage splashguard strainer, a second stage cup filter, and a second filter assembly. The second filter assembly includes at least one main filter comprising at least one carbon body filter enveloping a filter chamber, and exit tubing. The first filter container is structured to stack on top of the second filter container and the transfer tubing is structured to transfer first stage filtered fluid to the second filter container. The pump is structured to draw second stage filtered fluid from the second container through the exit tubing and expel the second stage filtered fluid out the spout to provide purified water.