| 摘要 |
<p>The present inventors have discovered a vent (56) which can be used in a venting closure (58) and particularly in venting closures for large heavy duty liquid detergent and other liquid laundry product containers. In one embodiment, the vent comprises a wall (426), a vent opening (410) in the wall, and one or more spacers on the surface of a face (424) of the wall (426). Most especially the spacers are protuberances (428), especially rounded protuberances (428). A liner (420) is adhered to a portion of the surface of the face (424) and spaced from the vent opening (410) by the spacers. The liner (420) is made of a material which permits air to pass through the vent hole (410), but preferably, the liner material does not permit liquids to pass through the vent hole (410). In an especially preferred embodiment, the liner (420) is comprised of a tetrafluoroethylene polymer. In a most preferred embodiment the application is also directed to a venting closure.</p> |
