Apparatus for densifying and packaging bulky materials

Details Apparatus for densifying and packaging bulky materials Apparatus for densifying and packaging bulky materials

1994-04-14

1995-10-24

Sipos, John

Package making

With contents treating

Reshaping

53527, 16355, 16356, 100190, 100233, B65B 124

Patent

active

054599822

ABSTRACT:
An apparatus for compressing bulky materials, like microfibers having a bulk density of less than about 0.2 PCF, to a much higher density, e.g. about 10.8 PCF, and packaging the compressed mass without damaging the material. The apparatus comprises a hopper having a pivoting wall wherein one edge of the pivoting wall is tapered and cooperates with a curved extension of one wall of an adjoining compression chamber to prevent the material from being pinched or scarffed which would damage the material. The compression chamber is long enough that when the compression means is withdrawn to accept another charge (each package requires a plurality of charging and compressing cycles) the compressed material cannot expand into the opening the compression chamber leading to the hopper. Finally, one end portion of a wall of the compression chamber has a movable retaining wall that also forms a portion of a wall of an adjoining packaging chamber. The hidden hinges and mover for the retaining wall is such that it allows the retaining wall to fit the openings in the walls of the compression and packaging chambers so tightly that the gaps between the retaining wall and the openings do not exceed about 0.067 inches.

REFERENCES:
patent: 3088499 (1963-05-01), Rieger
patent: 3621775 (1969-07-01), Dedio et al.
patent: 3694992 (1972-10-01), Hunt
patent: 4162603 (1979-07-01), Stromberg
patent: 4333206 (1982-06-01), Lang et al.
patent: 4406379 (1983-09-01), Anderson et al.

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