Arrangement for the control of the flow of contents in a packing machine

Abstract From the Canadian patent

In packing machines of the type which manufacture packing containers from flexible, tubular material the contents are fed via a filling pipe opening into the tube. The level of contents in the tube is controlled by means of a float which is connected mechanically to a valve located at the mouth of the filling pipe. On filling of highly viscous types of contents an arrangement for the control of the flow of contents is used instead in accordance, with the invention, which comprises a sealing device surrounding the filling pipe which on the one hand prevents the contents from penetrating upwards into the tube and which, on the other hand is used for controlling the feed of contents in that …