B - Operations – Transporting – 65 – G
Patent
B - Operations, Transporting
65
G
302/27
B65G 33/22 (2006.01) B65G 53/04 (2006.01) B65G 53/08 (2006.01)
Patent
CA 1244068
ABSTRACT OF DISCLOSURE An improved valve mechanism for an apparatus for conveying solid particulate material. The conveying apparatus includes a casing having a bore therethrough with an inlet for material to be conveyed and an outlet. A screw impeller is rotatably mounted in the casing by front and rear bearings with the rear bearings being positioned near the inlet. Material is discharged from the casing through a coaxial outlet into a discharge chamber. Gaseous fluid under pressure is supplied to the discharge chamber for entraining and conveying the particulate material through a pneumatic conveying line which is flow connected to the outlet of the discharge chamber. An improved valve mechanism is disclosed which closes the outlet of the casing. The valve is biased closed by a weight and opened by material being advanced by the screw impeller. The valve includes a valve plate which surrounds the shaft of the screw impeller to provide a seal at the casing and to at least partially seal around the shaft to substantially prevent gaseous fluid from entering the casing in the event material flow through the casing is stopped. The valve mechanism includes a valve element having an opening therethrough which is large enough to permit the impeller shaft to extend through the valve. The valve element is shaped so that it includes a first portion which defines half or the opening through the valve element and the second portion which defines the other half of the opening. The first portion is longitudinally spaced from the second portion so that when the valve pivots from a closed position to an open position, the edges of the opening adjacent the shaft will pivot away from the shaft at least during the initial stages opening valve.
506125
Fuller Company
Osler Hoskin & Harcourt Llp
LandOfFree
Pneumatic conveying device and flap valve does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Pneumatic conveying device and flap valve, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pneumatic conveying device and flap valve will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1176454