Fluid conditioner housings

Claim 1

A fluid treatment apparatus comprising a pipe adaptor for insertion in a pipeline, the adaptor having pipe inlet and outlet channels to communicate with the pipe, a container for containing a fluid treatment device, said container extending at right angles to the axis of the pipe adaptor, said adaptor having inlet and outlet ports forming continuations of said pipe inlet and outlet channels, said ports leading to said container so that fluid will pass from the inlet channel through the container and thence to the outlet channel, a coupler sleeve surrounding the pipe adaptor, said coupler sleeve having ports providing communication between the pipe adaptor ports and said container, said coupler sleeve being rotatable on the pipe adaptor to open and close communication between the pipe adaptor ports and the container, said coupler sleeve having a groove surrounding the rim of the container, said container having a lip on its rim engaged in said groove, a fixing element surrounding said pipe adaptor, an expandable ring surrounding said rim under the lip, said fixing element engaging said ring to press it and the lip into the groove, said pipe adaptor having a cam surface engaging the fixing element including a part of said surface of reduced diameter whereby rotation of the coupler sleeve and fixing element about the pipe adaptor causes the fixing element to release the ring to a position which facilitates removal of the container.