Device for handling loose fill foam packing

Details Device for handling loose fill foam packing Device for handling loose fill foam packing

1990-09-21

1992-03-17

Focarino, Margaret A.

Conveyors: fluid current

Having load by-pass around blower or pump

406 38, 406151, 406171, B65G 5314

Patent

active

050963376

ABSTRACT:
A device achieves the entrainment of ultralight loose fill packing materials in an air stream to transport the packing materials into a depository for reuse or disposal. The device has an elongated air flow duct, with relatively low air flow induced by a rotating fan blade that extends partially into the interior of the duct. The construction provides for the air flow into the duct to be equal to the air flow out of the duct. A screen surrounds the fan blade to prevent contact with the packing materials as they flow through the duct. The collected packing materials are deposited into a flexible plastic bag, for example, that can be releasably secured to a perforated shroud on the outlet end portion of the transport duct. This device readily removes the loose fill packing materials from shipping cartons or, in the alternative, can recover widely scattered pieces of the material. In the preferred embodiment, the area of the gap between the duct wall and the surface of the screen within the duct should be one-half (or greater) the area of the duct to prevent clogging of the duct by the packing materials.

REFERENCES:
patent: 993180 (1911-05-01), Leaphart
patent: 1047164 (1912-12-01), Butenschoen
patent: 3872539 (1975-03-01), Doyel
patent: 4644606 (1987-02-01), Luerken et al.
patent: 5000623 (1991-03-01), Kihlstrom

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