Patent ID: 8727125
Filing Date: 2014-05-20
Classification: H01L

Abstract:
1. A substrate container, comprising a container portion with an open side or bottom, a door to sealingly close the open side or bottom, one of the door and the container portion comprising a first access structure; and a first elastomeric grommet formed of elastomeric material, the grommet having an axis, the grommet retained in the access structure for providing fluid access to an interior of the substrate container, wherein the access structure defines an opening passing from interior the container to exterior the container, and wherein the access structure has an apertured wall extending transverse to the axis of the grommet and the access structure further has an axially extending wall with an inwardly facing surface sealingly engaged with the elastomeric material of the grommet therein, and wherein the first elastomeric grommet having generally a cylindrical shape or a tapered cylindrical shape, an axial length, an outer facing surface engaged with the inwardly facing surface of the axially extending wall of the access structure, an inwardly facing surface defining an opening configured as a bore extending axially through the grommet, and a pair of parallel and planar end faces arranged perpendicular to the axis, the grommet when viewed in cross-section taken axially coincident with the axis, having a cross-sectional area of the grommet that is greater than the cross-sectional area of the bore extending axially through the grommet, each of the pair of end faces formed of elastomeric material and one of the pair of end faces exteriorly exposed with respect to the substrate container for engaging with a purging nozzle, the substrate container further comprising a check valve positioned in the bore of the grommet and a filter positioned intermediate the grommet and the apertured wall; and whereby the grommet provides a single body with a continuous surface including an elastomeric sealing surface for sealing with the access structure, an elastomeric surface for sealing with the check valve in the bore, and an exposed elastomeric surface for sealing with an exterior purging nozzle.