Abstract: A fluid filter element for use with a filter housing having a selectably blockable outlet channel for unfiltered fluid, the filter fluid element including first and second end caps, a filter medium joined to the first and second end caps and defining a cylindrical configuration arranged about a central bore extending between the first and second end caps, a water separator operative to separate water from filtered fluid, a water collector arranged for collecting water separated from the filter fluid and a plug mounted on the second end cap and separate from the water collector and being configured for selective blocking of the selectably blockable outlet channel, when the fluid filter element is mounted in the filter housing in an operative orientation.

Abstract: A filter element for use with a filter assembly having a filter housing and a rotationally releasable locking mechanism, the filter element including first and second end plates, the second end plate having a central aperture, a filtering medium arranged between the first and second end plates in a generally hollow cylindrical configuration about a central bore arranged about an axis, the central bore communicating with the central aperture in the second end plate, at least one perforated cylindrical pipe located in the central bore and a locking mechanism rotating assembly, sealingly extending through the central aperture of the second end plate and having a seal mounted thereon, for sealing the filter element in the filter housing.

Abstract: A freezing resistant liquid filter including a housing having a liquid inlet and a liquid outlet and a freezing compensating filter element disposed within the housing and including a folded filter medium having a plurality of interstices and freezing compressible elements located at the interstices.

Abstract: A freezing resistant liquid filter including a housing having a liquid inlet and a liquid outlet and a freezing compensating filter element disposed within the housing and including a folded filter medium having a plurality of interstices and freezing compressible elements located at the interstices.

Abstract: A freezing resistant liquid filter including a housing having a liquid inlet and a liquid outlet and a freezing compensating filter element disposed within the housing and including a folded filter medium having a plurality of interstices and freezing compressible elements located at the interstices.

Abstract: A replaceable oil filter sub-assembly for use with an oil filter housing having an oil drain passageway extending outwardly from an interior volume of the oil filter housing, the oil filter sub-assembly including a filter element having a filter medium defining an upstream side and a downstream side of the filter element and an oil drain passageway sealing rod assembly having a first end configured for oil sealing engagement with the oil drain passageway of the oil filter housing, the oil drain passageway sealing rod assembly being separate from the filter element and extending through the interior volume of the filter housing at the upstream side of the filter element.

Abstract: A freezing resistant liquid filter including a housing having a liquid inlet and a liquid outlet and a freezing compensating filter element disposed within the housing and including a folded filter medium having a plurality of interstices and freezing compressible elements located at the interstices.

Abstract: A replaceable oil filter sub-assembly for use with an oil filter housing having an oil drain passageway extending outwardly from an interior volume of the oil filter housing, the oil filter sub-assembly including a filter element having a filter medium defining an upstream side and a downstream side of the filter element and an oil drain passageway sealing rod assembly having a first end configured for oil sealing engagement with the oil drain passageway of the oil filter housing, the oil drain passageway sealing rod assembly being separate from the filter element and extending through the interior volume of the filter housing at the upstream side of the filter element.

Abstract: A fluid filter including a fluid filter body, an optional aperture plug protrusion mounted on the fluid filter body and an insertion guide element, separate from the optional aperture plug protrusion, which guides the fluid filter body along an inner side surface of a filter housing as it is inserted into the filter housing.