Fluid filter
AssigneeInoac Corporation
InventorsTeruo Shiraishi, Fuminori Horio
Life of this patent
Estimating the term…
Abstract
A fluid filter is provided with a case body defining therein a holder and having pressing portions formed on the internal wall surface of the case body. The pressing portions can compress a filter medium housed in the holder. The pressing portions are pressed against the filter medium housed in the holder to compress it and form a compressed region at a desired position of the filter medium, where the rate of capturing extraneous substances is increased. Thus, even if various sizes of the extraneous substances are contained in a fluid introduced through the inlet into the holder, the filter medium can capture the extraneous substances in its entirety. The degree of compression of the compressed region in the filter medium changes depending on the height of each pressing portion.
Claims19
A fluid filter provided with a case body and a filter medium;
- the case body having an inlet and an outlet for a fluid at necessary positions respectively and containing a holder defined therein to communicate with the inlet and the outlet;
- the filter medium being made of a porous material having an appropriate flexibility and a uniform density and being removably housed in the holder so as to allow the fluid introduced through the inlet into the holder to pass through the filter medium where fine extraneous substances contained in the fluid are captured and to discharge the thus cleaned fluid through the outlet;
- wherein the case body comprises a pressing portion formed on an internal surface of the case body, the pressing portion being capable of compressing the filter medium housed in the holder;
- the pressing portion being pressed against the filter medium housed in the holder to compress it and form as desired a compressed region having an increased rate of capturing extraneous substances, enabling the filter medium to capture the extraneous substances throughout the filter medium even if the extraneous substances differ in size.
A fluid filter provided with a case body and a filter medium;
- the case body having an inlet and an outlet for a fluid at necessary positions respectively and containing a holder defined therein to communicate with the inlet and the outlet;
- the filter medium being made of a porous material having an appropriate flexibility and a uniform density and being removably housed in the holder so as to allow the fluid introduced through the inlet into the holder to pass through the filter medium where fine extraneous substances contained in the fluid are captured and to discharge the thus cleaned fluid through the outlet;
- wherein the filter medium to be housed in the holder is designed to have outside dimensions such that the volume thereof is greater than the internal volume of the holder, so that the filter medium is compressed when it is housed in the holder and form a compressed region having an increased rate of capturing the extraneous substances at a desired position of the filter medium and that the extraneous substances of various sizes are captured by the filter medium in its entirety.
A fluid filter having a case body with an inlet and an outlet, and a filter medium of a pourous material contained in the case body comprising a pressing portion formed on an internal surface of the case body wherein the filter medium being compressed by the pressing portion.
Dependencies are inferred from the claim text.