In one or more embodiments, a liquid filter 100 to filter fuel or lubricant is provided. The liquid filter 100 includes a housing 102 extending along the vertical axis XX′. The housing 102 has a cylindrical shape and includes a top end cap 104 and a bottom end cap 106 provided at both ends. The top end cap 104 and the bottom end cap 106 are integratedly formed in one piece with the housing 102. The top end cap 104 includes an outlet 108 for allowing outflow of filtered liquid from the housing 102. A hand priming pump 110 is functionally attached to the outlet 108 of the top end cap 104 for easing priming. The bottom end cap 106 includes an inlet 112 for allowing inflow of dirty liquid inside the housing 102.

A broom vacuum cleaner for cleaning swimming pools including a main body, pumping means, a suction head and an upstream filter, placed inside the main body and upstream of the pumping means, the suction brush includes a downstream filter placed outside the main body and downstream of the pumping means, and the upstream and downstream filters are coaxial.

A filter arrangement may include a filter housing and a ring filter element arranged in the filter housing. The ring filter element may include an upper end plate, a lower end plate, and a filter material arranged therebetween. An axially projecting pin may be disposed on the lower end plate and may engage into a channel on a filter housing side. The filter arrangement may also include a tubular dome which may engage into an interior of the ring filter element. The tubular dome may have a guide contour. The guide contour may cooperate with a guide element arranged on the ring filter element and may have an axial groove. The guide contour may be configured as at least one of a circular ramp and a chamfered cannula. On the upper end plate, an axial stop may project into the interior of the ring filter element.

A filter assembly includes a filter element and a filter housing. The filter housing includes a shell defining an inner cavity, and a lid configured to engage the shell at an opening of the inner cavity. The filter element is disposed within the inner cavity and includes a media pack, a first endplate, and a sealing member. The first endplate is sealingly engaged with a media pack first end and includes a skirt extending along a longitudinal axis of the media pack from the first end toward the second end. The sealing member is coupled to the skirt and is positioned between and forms a seal between the lid and the shell.

A microorganism sampling device includes: a head part that has a water supply channel to which a water supply pipe for supplying sample water can be connected; a housing part to an upper part of which the head part can be detachably attached; a frame-structured tube; a tubular filter that is arranged within the tubular body; a cup that communicates with the tubular filter and is attached to one end of the tube body; and a cap that has a channel communicating with the tubular filter and is attached to the other end of the tube body. The microorganism sampling device further includes a filter part housed in the housing part, in which a bottom part of the cup is supported by a bottom part of the housing part. The head part is attached to an upper part of the housing part.

Various example embodiments relate to a filtration system. The filtration system comprises a housing having a first housing end and a second housing end. The housing defines a central compartment therein. The housing comprises a key slot disposed on the first housing end and a housing key element protruding from the first housing end toward the second housing end. The filtration system further comprises a filter element positioned within the central compartment of the housing. The filter element has a first filter end and a second filter end. The filter element includes filter media and an endplate disposed on the first filter end. The endplate includes a central endplate opening, a key element configured for engagement with the key slot, and an installation guidance element formed along the central endplate opening. The installation guidance element is configured for engagement with the housing key element.

An inner case being substantially cylindrical and being covered at an upper end is provided to cover a heater being substantially rod-shaped. A float being substantially plate-shaped and having substantially the same inner diameter as an inner diameter of the inner case is provided movably in the vertical direction in the inner case, and in the float, a hole through which the heater is inserted is formed. Gas is enclosed in a space surrounded by the inner case and the float. The length in the vertical direction of the inner case is smaller than the length in the vertical direction of the heater. In addition, when the float is positioned at a lower end of the inner case, a gap exists between the float and a bottom surface of a filter case.

A spin-on filter assembly with replaceable coreless element comprises: a reusable spin-on housing including a filter bowl having sealing structure on a bottom of the filter bowl and a sealing structure on a top of the filter bowl; a center support tube integral with the filter bowl and including a perforated tube and an upper portion having an threaded coupling allowing for the filter assembly to threaded into position and an exterior sealing structure; and a replaceable coreless filter element mounted on the central support tube within the filter bowl and having filter media, a lower sealing structure configured to engage with the sealing structure on the bottom of the filter bowl and an upper sealing structure configured to engage with the exterior sealing structure on the center support tube.

A filter that includes: a filter base portion having a first main surface and a second main surface, the filter base portion defining a plurality of through-holes connecting the first main surface and the second main surface via an inner wall extending from the second main surface toward the first main surface; and a support portion that has a plurality of protruding portions located in respective through-holes of the plurality of through-holes and disposed on the second main surface of the filter base portion, the plurality of protruding portions having an outer wall in contact with the inner wall of the filter base portion, wherein a first opening on the first main surface side of the filter base portion is larger than a second opening on the second main surface side of the filter base portion, and there is a clearance between the filter base portion and the support portion.

A filter assembly comprises a filter element, and a mount having at least one port. Each of the filter element and mount has inter-engaging connection formations, where the filter element and mount can be detachably connected to one another. The mount defines a flow path between the port and filter element when the element is connected to the mount and includes a link element which can slide relative to the mount between retracted and deployed positions. The link element has one of a lug and an inclined ramp surface, and the filter element has the other of the lug and ramp surface. The lug and ramp surface form a cam drive where the lug engages the ramp surface as the filter element and mount are assembled, and slide along the surface when the element is rotated to draw the link element out of the mount towards its deployed position.