| 摘要 |
A filter assembly with a replaceable filter element (17) in an open-ended filter cannister (12) the open end of which is slideable over and sealable with a projecting part (16) of a base structure of the assembly to enclose the filter element, characterized by the base structure carrying a plurality of jaw elements (80) spaced around the said part, said jaw elements being concommitantly laterally displaceable by a rotary member (70) adapted to effect a cam action in relation to said element and thereby enable them to retain or release the cannister. |
