B - Operations – Transporting – 65 – G
Patent
B - Operations, Transporting
65
G
193/2, 193/3
B65G 11/10 (2006.01) B65G 11/14 (2006.01) B65G 69/18 (2006.01)
Patent
CA 1082624
ABSTRACT OF THE DISCLOSURE A dustproof chute for a particulate material loader including an airtight elastic tubular member located below a particulate material feeding device and defining by its wall a space below the particulate material feeding device, a discharge end tubular member of small length connected to a lower end of the airtight elastic tubular member, a particulate material stream diameter controlling tubular member located in a space within an upper end portion of the airtight elastic tubular member and permitting a particulate material fed by the particulate material feed- ing device to flow downwardly therethrough in a stream, and a ventilating space surrounding the particulate material stream diameter controlling tubular member and communicat- ing with the particulate material feeding device. The particulate material stream diameter controlling tubular member has the function of reducing the diameter of a downwardly flowing stream of particulate material and causing the stream to flow substantially through the central portion of the space within the airtight elastic tubular member whereby an inner tube hitherto used in a chute of the prior art can be eliminated. The discharge end tubular member has the function of temporarily holding the down- wardly flowing particulate material before it is released from the chute.
313833
Fukagai Kouichi
Higashinaka Kouichi
Shirasaki Kazuo
Gowling Lafleur Henderson Llp
Hitachi Metals Ltd.
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