UNIVERSAL PNEUMATIC TUBE DELIVERY DEVICE Russian patent published in 2009 - IPC F41B11/00 

FIELD: mechanics.

SUBSTANCE: proposed device incorporates a high-pressure air feed tube and an assembly made up of two high-pressure chambers. The first chamber comprises a check valve, while the second chamber incorporates a time delay function. There is a jet arranged in between the said chambers. The first chamber bottom accommodates a stabiliser rigidly attached thereto. The membrane separating the aforesaid tube into two parts is fitted between the said stabiliser and the bottom. High-pressure air is forced into the lower part furnished with a stop for the check valve to shut off the jet. The second chamber is separated from the material load compartment by the time-delay membrane.

EFFECT: higher accuracy and reliability, increased delivery range.

1 dwg, 1 tbl