Claims
- 1. A bag filling apparatus of the type used for delivering particulate material to a filling spout to which a bag to be filled is attached; the apparatus comprising:
- a source of pressurized gas;
- a pre-conditioning hopper having a chamber for containing a selected volume of particulate material, said chamber having a bottom surface comprising a porous dissemination pad through which said source of pressurized gas can forcefully direct such gas upwardly into said chamber for aerating and preventing compaction of said particulate material thereby permitting said particulate material to flow more freely; and
- an impeller member having a longitudinally directed elongated cylindrical shaft to which a plurality of impeller blades are connected symmetrically along the wall of said shaft and from which extend radially helical feed screw flights, at least two such flights being in overlapping parallel relation to each other and each terminating adjacent, radially aligned, and longitudinally displaced from a different one of said impeller blades;
- said feed screw flights communicating with said chamber, said impeller blades communicating with said spout for feeding said aerated particulate material to each said bag.
- 2. The impeller apparatus recited in claim 1 wherein the number of impeller blades is equal to the number of said feed screw flights.
- 3. The impeller apparatus recited in claim 2 wherein there are an equal number of feed screw flights on each axial side of said impeller blades.
BACKGROUND OF THE INVENTION
This application is a continuation-in-part of patent application Ser. No. 371,750 filed Apr. 26, 1982, now abandoned.
US Referenced Citations (3)
Foreign Referenced Citations (3)
Number |
Date |
Country |
216228 |
Jun 1956 |
AUX |
487836 |
Nov 1952 |
CAX |
652560 |
Nov 1962 |
CAX |
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
371750 |
Apr 1982 |
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