Filter Unit
OwnerYoshinori Nakajima, Toshiyuki Tanaka +1inventors
InventorsYoshinori Nakajima, Toshiyuki Tanaka, Hirotugu Matoba
Life of this patent
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Abstract
A filter unit (3) includes a housing (161), a housing (162), a filter member (164), and a packing (165A). The housings (161) and (162) are joined to each other liquid-tightly. The filter member (164) and the packing (165A) are disposed so as to be sandwiched between the housing (161) and the housing (162). The housing (161) is formed with a projection (167) located outside a portion of the housing (161) which is contacted by the O-ring. The housing (162) is formed with a recess (166) for receiving the projection (167) therein. A sealing material (168) is provided between the projection (167) and the recess (166).
Claims5
A filter unit for filtering liquid passing therethrough, comprising:
- a first housing member having a bottomed tubular shape;
- a second housing member having a bottomed tubular shape and liquid-tightly joined to the first housing member;
- a filter member disposed so as to be sandwiched between the first housing member and the second housing member;
- and
- an O-ring disposed so as to be sandwiched, together with the filter member, between the first housing member and the second housing member while contacting an end portion of the filter member, wherein:
- the first housing member is formed with an annular projection located outside a portion of the first housing member which is contacted by the O-ring;
- the second housing member is formed with an annular recess located to face the projection for receiving the projection therein;
- and
- a sealing material is provided between the projection and the recess.
Dependencies are inferred from the claim text.