Patent ID: 6237893
Filing Date: 2001-05-29
Classification: B65D,F16K

Abstract:
A gas powered metal discharge valve helping to remove adhered granular material from a storage vessel and comprising:(a) an outer housing with front and back ends terminating a central inner passageway;(b) a movable piston member having a one-piece unitary metal construction slidably engaged within the central inner passageway in said outer housing, said piston member having an enlarged head termination sealing the front end of said passageway,(c) a spring loaded piston guide member also having a one-piece unitary metal construction which is fixed within the central passageway in said outer housing intermediate the front and back end; and(d) a gas valve mechanism supplying a pressurized gas medium to the back end of said central passageway to drive the piston member forward unsealing the front end of said passageway and releasing the pressurized gas to the surrounding atmosphere with sufficient force to cause the adhered granular material to become dislodged.