SEAL STRUCTURE IN CARTRIDGE FILTER HOUSING

摘要

PROBLEM TO BE SOLVED: To improve the sealing property in a connection part of a cap and container body. SOLUTION: A filter O-ring 13 is fitted in an annular recessed groove 12 formed in the outer circumferential face of the neck part of a cap 1. A second O-ring 18 is fitted in a separate space 17 of an approximately triangular cross- sectional shape formed of a sloping face 14 formed in the lower rim of the cap, a horizontal step part 15 formed in the inner side of a container body 2, and the vertical wall 16 of the container body.