04182386 is referenced by 65 patents and cites 9 patents.

A closed system for filling a container with a load of powdered, granular, or other dry fluent material and for unloading the load substantially without the emission of dust to the atmosphere. The container has an opening in its top which may be sealingly secured to a filling head during during filling and closed by a removable cover. The filling head is connected to a dust receiver for removing dust laden air displaced from within the container as the load is delivered to the container. The container used with this system may be adapted for fluidized unloading of the powder substantially without the release of dust.

Title
Closed system and container for dust free loading and unloading of powdered materials
Application Number
5/855935
Publication Number
4182386
Application Date
November 30, 1977
Publication Date
January 8, 1980
Inventor
Charles S Alack
St. Louis
MO, US
Agent
Koenig Senniger Powers and Leavitt
Assignee
Semi Bulk Systems
MO, US
IPC
B65B 1/32
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