A fluid collection container includes a self-supporting, collapsible bag with a threaded cylindrical inlet ring or spout and a strainer removably seated within the ring. The strainer can separate a macroscopic solid object from a viscous liquid. The fluid collection container includes a rectangular prismatic box with the spout extending through and a threaded cap removably coupled to the spout. A method of draining automotive oil includes positioning the bag beneath an oil pan of an automobile, removing an oil plug from the automotive oil pan and allowing the oil plug to fall into the strainer; draining the automotive oil through the strainer into the bag; removing an oil filter from the automobile; removing the strainer from the inlet; inserting the oil filter; and screwing a threaded the cap onto the inlet.

A water purifying filter has a cylindrical inner housing to receive a filter therein, and an outer housing to receive the inner housing. The inner housing and the outer housing are spaced apart from each other to form an insulation space configured to suppress heat transfer and to reduce the filter freezing inside the inner housing.

A filter element, in particular an air filter element, has a filter media body surrounding a hollow interior and has a first end and an opposite second end. A first end cap is positioned on the first end of the filter media body, and a second end cap is positioned on the second end of the filter media body. The second end cap is a closed end cap. The second end cap has a plurality of spaced-apart inner adapter projections arranged thereon and projecting in direction of a central axis away from the first end cap. At least some of the inner adapter projections are positioned in a circular arrangement so as to surround a center of the second end cap. Such a filter element is arranged in a housing of a filter system provided with a receiver arrangement for the filter element.

A reinforced top cover structure for a chemical filter includes a cover member made of injection molded plastic material and covering a metal-made core board mounted with multiple positioning pillars. Each positioning pillar has an upper section extending upwardly from a top surface of the core board, a middle section connected to the upper section and extending through a corresponding one of multiple positioning holes in the core board, and a lower positioning part connected to the middle section and extending downwardly from the bottom surface of the core board. The core board has an annular peripheral surface formed with multiple notches. The cover member has an outer peripheral surface surrounding the annular peripheral surface of the core board and formed with multiple engaging grooves that correspond respectively to the notches in position.

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.

A housing assembly, portable filter system using the housing assembly and methods of mounting a filter element in a housing assembly are provided. The housing assembly is usable with filter elements of different types. The housing assembly includes a housing body having an open end and being attached to a filter head. The filter head includes a first housing sealing interface configured to sealingly mate with a filter element of the first type and a second housing sealing interface configured to sealingly mate with a filter element of the second type. A cover member removably attaches to the housing body and includes a third housing sealing interface configured to sealingly mate the filter element of the second.

An endcap for a filter element includes an annular plate member disposed adjacent an axial end surface of an annular filter medium of the filter element. A radially outer annular flange projects axially from a surface of the annular plate member. The radially outer annular flange includes a winglet feature extending radially outwardly in a cantilever fashion from an outer circumferential surface of the radially outer annular flange in a direction opposite to a direction in which the filter element is rotated during installation into a filter base of a filter system, with the winglet feature deflecting toward the outer circumferential surface of the radially outer annular flange through contact with a wedge-shaped protrusion projecting radially inwardly from an inner circumference of the filter base as the filter element is rotatably installed into the filter base, and springing back to its undeflected configuration after passing the wedge-shaped protrusion.

A VOC adsorption-desorption apparatus for volatile organic compound condensing system is disclosed. The VOC adsorption-desorption apparatus according to the present invention is characterized by comprising: an upper plate having a circular hole formed in the center of a circular plate; a lower plate having a diameter smaller than the outer diameter of the upper plate but larger than the diameter of the hole; a filter installed between the upper plate and the lower plate and around a through hole being extended from the hole of the upper plate toward the lower plate; and a filter protection net formed in the shape of a net and being extended from an outer circumference of the upper plate to an outer circumference of the lower plate to surround the filter.

A cylindrical or tubular filter insert (10) of a filter material (2) for liquid media (7) is disclosed. A filtration arrangement (30) serves to receive the cylindrical or tubular filter insert (10). The filtration arrangement (30) comprises a filter housing (31) with an inlet (32) for the medium (7) to be filtered and an outlet (34) for the filtered medium (7).

A housing assembly, portable filter system using the housing assembly and methods of mounting a filter element in a housing assembly are provided. The housing assembly is usable with filter elements of different types. The housing assembly includes a housing body having an open end and being attached to a filter head. The filter head includes a first housing sealing interface configured to sealingly mate with a filter element of the first type and a second housing sealing interface configured to sealingly mate with a filter element of the second type. A cover member removably attaches to the housing body and includes a third housing sealing interface configured to sealingly mate the filter element of the second.