F - Mech Eng,Light,Heat,Weapons – 16 – K
Patent
F - Mech Eng,Light,Heat,Weapons
16
K
F16K 1/30 (2006.01) B65D 88/70 (2006.01) F16K 1/36 (2006.01) F16K 24/06 (2006.01)
Patent
CA 2238235
An aerator valve assembly adapted to provide selective fluid communication between a supply of pressurized gas and a pressure vessel and adapted to provide selective fluid communication between the pressure vessel and a bulk material handling structure. The valve assembly includes a valve housing including a valve body, an end cap adapted to be connected to the supply of pressurized gas, and a piston seat having an outlet port adapted to provide fluid communication with the bulk material handling structure. The valve body includes a port adapted to provide fluid communication with the pressure vessel. A piston is located within a chamber of the valve body between the end cap and the piston seat. The piston is selectively slidable between an extended position wherein the piston creates a metal- to-meta1 seal with the piston seat to seal the outlet port closed and a retracted position wherein the seal is broken. The piston includes a diaphragm that is adapted to engage the piston seat and that includes a plurality of fluid passages adapted to provide fluid communication between the supply of gas and the port of the valve body. The piston includes a cylindrical skirt extending from the diaphragm that slidably engages a bearing on the interior wall of the valve body to provide proper piston alignment. A biasing member extends between the piston and the end cap and resiliently biases the piston from the retracted position to the extended position.
Burkhart James R.
Hurdis Jason R.
Macrae & Co.
Martin Engineering Company
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