Patent ID: 6073818
Filing Date: 2000-06-13
Classification: A61M,B65G

Abstract:
An apparatus comprising:a primary chamber having a lateral surface extending between a first open end and a second open end;a rotating member positioned within said primary chamber and extending from a first position within said primary chamber to a second position within said primary chamber;a motor coupled with said rotating member and adapted to effect rotation thereof at a rate of about 0.1 to about 10 rpm;a feed chamber having a lateral surface extending between a first open end and a second open end, said first end of said feed chamber being coupled with said primary chamber through said lateral surface of said primary chamber at a point between said first position and said second position, said feed chamber being adapted to receive a powdered solid material through said second end thereof and transfer said solid material into said primary chamber;an air flow chamber having a lateral surface extending between a first open end and a second open end, said air flow chamber being coupled with one end of said primary chamber through said lateral surface of said air flow chamber and being adapted to receive said solid material from said primary chambers;wherein actuation of said motor is selected from the group consisting of:said motor effecting rotation of said rotating member at fixed intervals; orsaid motor applying pulses of force to said rotating member at a rate of about 0.3 to about 30 pulses per second.