Patent ID: 9695034
Date: 2017-07-04
CPC Classifications: B05B,B05C,B67D,Y10T

Claim:
1. An apparatus for conveying viscous material out of a barrel-shaped container having a container interior, a container bottom and a container wall extending upward from the container bottom and having an inner surface facing the container interior, the apparatus comprising: (a) a follower plate lying against the inner surface of the container wall for closing off the container and movable in a direction toward the container bottom, said plate having an underside intended to lie on the viscous material, a middle portion, a material exit opening, and a dome positioned in the middle portion, extending upward from the underside, and opening into the material exit opening; (b) a pump for conveying the viscous material through the material exit opening; (c) at least one displacement body projecting into the dome through the material exit opening and connected with the pump for displacement of at least one of the material situated in the dome and air situated in the dome; (d) at least one closeable venting opening for venting the dome; and (e) an intermediate piece disposed between the pump and the dome, wherein the intermediate piece has the at least one displacement body and the at least one venting opening; wherein the intermediate piece comprises a lower part that has the at least one displacement body and the at least one venting opening, and a closure part that is moveable, relative to the lower part, between a closed position, in which the closure part closes the at least one venting opening, and an open position, in which the closure part releases the at least one venting opening; and wherein the closure part is movable from the open position into the closed position counter to a reset force.