Patent ID: 8091592
Filing Date: 2012-01-10
Classification: F16K,H01L,Y10T

Abstract:
1. A substrate container comprising a container main body to contain a substrate and a check valve which has a cylindrical housing and a valve disc installed in the housing and controls gas flowing from and to the interior and the exterior of the container main body; and being formed by inserting the housing into a through-hole of the container main body, wherein, when an end of the valve located inside the container main body is defined as a front end: wherein the check valve further has a positioning mechanism to position the second housing to the first housing and a locking mechanism to lock the second housing to the first housing, and wherein the positioning mechanism has a positioning recess formed at a rear end of the first housing and a positioning protrusion being formed at the folded flange of the second housing and engaging with the positioning recess.