A hydrocyclone for separation solid particles from a liquid is disclosed. The hydrocyclone includes a ceramic cyclone head, a ceramic cyclone main body, and a metal enclosure. The metal enclosure includes at least an upper metallic enclosure part and a main metallic enclosure part. A lower section of the upper metallic enclosure part includes mateable circumferential threads and an upper section of the main metallic enclosure part includes mateable circumferential threads. The mateable circumferential threads of the upper metallic enclosure part and the mateable circumferential threads of the main metallic enclosure part are mateable with each other.

A centrifugal-separation type oil separator includes a cylindrical separator body, and an inflow pipe arranged to introduce a fluid including an oil into the separator body. The inflow pipe includes a curved portion. The curved portion includes at least one oil draining hole.

A centrifugal-separation type oil separator includes a cylindrical separator body, and an inflow pipe arranged to introduce a fluid including an oil into the separator body. The inflow pipe includes a curved portion. The curved portion includes at least one oil draining hole.

A surface cleaning apparatus comprises an air treatment member having an air treatment chamber. A moveable member is positioned in the air treatment chamber. A driving assembly is drivingly connected to the moveable member wherein the driving assembly is operable between a stored position is which the surface cleaning apparatus is operable to clean a surface and a cleaned position in which the moveable member has been translated through at least a portion of the chamber, wherein, in the stored position, a portion of the driving assembly is longitudinally spaced from the first and second axially spaced apart ends of the air treatment chamber.

A surface cleaning apparatus comprises an air treatment member having an air treatment chamber. A moveable member is positioned in the air treatment chamber. A driving assembly is drivingly connected to the moveable member wherein the driving assembly is operable between a stored position is which the surface cleaning apparatus is operable to clean a surface and a cleaned position in which the moveable member has been translated through at least a portion of the chamber, wherein, in the stored position, a portion of the driving assembly is longitudinally spaced from the first and second axially spaced apart ends of the air treatment chamber.

A surface cleaning apparatus comprises an air treatment member having an air treatment chamber. A moveable member is positioned in the air treatment chamber. A handle is drivingly connected to the moveable member by a driving linkage wherein part of the driving linkage extends through a slot in the sidewall of the air treatment member, whereby the moveable member is longitudinally translatable through at least a portion of the chamber

A surface cleaning apparatus comprises an air treatment member having an air treatment chamber. A moveable member is positioned in the air treatment chamber. A handle is drivingly connected to the moveable member by a driving linkage wherein part of the driving linkage extends through a slot in the sidewall of the air treatment member, whereby the moveable member is longitudinally translatable through at least a portion of the chamber

A surface cleaning apparatus comprises an air treatment member having an air treatment chamber. A moveable member is positioned in the air treatment chamber. A driving assembly is drivingly connected to the moveable member wherein an end wall of the air treatment chamber is openable in response to the moveable member being longitudinally translated through at least the portion of the air treatment chamber.

A surface cleaning apparatus comprises an air treatment member having an air treatment chamber. A moveable member is positioned in the air treatment chamber. A driving assembly is drivingly connected to the moveable member wherein an end wall of the air treatment chamber is openable in response to the moveable member being longitudinally translated through at least the portion of the air treatment chamber.

A surface cleaning apparatus includes an air flow path, a cyclone bin assembly, and a suction motor. The air flow path extends from a dirty air inlet to a clean air outlet. The cyclone bin assembly is provided in the air flow path, and includes a cyclone chamber, a cyclone air inlet, a cyclone air outlet, a cyclone axis of rotation, and an axially extending cyclone chamber sidewall extending between first and second axially opposed ends. The cyclone chamber sidewall has first portion that is moveably mounted with respect to a second portion of the cyclone chamber sidewall between a closed position in which the first and second portions meet at a first juncture and a second juncture and an open position in which the cyclone chamber is opened. The first juncture extends at an angle to a plane that is transverse to the cyclone axis of rotation.