Patent ID: 7329339

Claim:
A strainer device to be attached to a fuel tank, comprising: a sucking passage member having a passage with a hole opened in the fuel tank at one end, and a first cylindrical portion at the other end thereof, a filtering member attached to the sucking passage member for covering the hole of the passage, and a conduit connecting member attached to the sucking passage member to extend outside the fuel tank for connecting a conduit to guide fuel passing through the filtering member, said conduit connecting member having a second cylindrical portion at one end thereof connected to the first cylindrical portion to form a concave portion at a junction of the first and second cylindrical portions so that a check valve for preventing the fuel from flowing back is retained in the concave portion, wherein one of said first and second cylindrical portions forms an inner cylindrical portion with radial ribs to form said concave portion, and the other of said first and second cylindrical portions forms an outer cylindrical portion covering the inner cylindrical portion, said inner and outer cylindrical portions being fixed together.