| 摘要 |
The invention provides a fume extractor device for attachment adjacent a filling orifice of a container, which device comprises a hollow collar having inner and outer walls connected to one another, an outlet in the outer wall which is connectable to a fume removal system, and at least one opening in the inner wall, and connecting structure for releasably connecting the hollow collar to a container with the inner wall disposed around the filling orifice thereof. The connecting structure together with the hollow, collar comprise a clamping structure to releasably engage the cylindrical side wall of the container. In the operation of the device, the container may be filled or emptied by means of a dip tube inserted into the container through the hollow collar and the filling orifice and vapors escaping from the container through the orifice are extracted through the at least one opening in the inner wall and out of the hollow collar through the outlet by the fume removal system.
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