B - Operations – Transporting – 65 – G
Patent
B - Operations, Transporting
65
G
302/20
B65G 53/16 (2006.01) B65G 53/52 (2006.01)
Patent
CA 1089511
ABSTRACT OF THE DISCLOSURE A pneumatic conveying system includes a conveying conduit, a gas conduit which communicates with it at least at one juncture, and a release valve at the junc- ture. The release valve includes a housing connected with the conveying conduit and the gas conduit, a flex- ible diaphragm secured to the housing and subdividing the same into one chamber communicating with the gas conduit and another chamber connected with the convey- ing conduit, the diaphragm having a substantially cen- tral opening, a valve-seat member connected to and mov- able with the diaphragm in response to flexing of the same and forming a valve seat surrounding the opening, a valve member carried by the housing and located in the one chamber, means guiding the valve seat member for move- ment relative to the valve member between a valve-open- ing and a valve-closing position, and valve-closing spring means located in the one chamber and permanently tending to urge the valve-seat member to the valve-closing posi- tion thereof.
309748
Borden Ladner Gervais Llp
Waeschle Maschinenfabrik G.m.b.h.
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