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US 5,344,559 AGranted
Filter cartridge
AssigneeVotech Filter GmbH
InventorMaarten H. Van Ooijen
Life of this patent
Estimating the term…
Abstract
The invention relates to a filter cartridge including a filter element equipped with two annular flanges and two supporting cages. In order to be able to disassemble the filter cartridge for the purpose of facilitating disposal, the two annular flanges are provided with inner and outer threads. Four mounting rings are provided with mating inner and outer threads and can be screwed onto the annular flanges while being supported on the two supporting cages. Once the threaded rings are tightened, the filter element is under tension.
Claims12
A filter cartridge comprising:
- a hollow cylindrical filter element having two axial ends and being under axial tension
- an annular flange at each one of said two axial ends;
- at least one supporting cage coaxial with the filter element;
- at least one mounting ring between the annular flange at one of said axial ends and the supporting cage for establishing a releasable connection between the mounting ring and the supporting cage;
- and
- tensioning means between the mounting ring and the annular flange for tensioning the filter element, with the mounting ring being supported on the supporting cage.
3 more elements
Dependencies are inferred from the claim text.