Patent ID: 9347211
Filing Date: 2016-05-24
CPC Classification: B61D,E03F,Y02T,Y10T

Claim Text:
1. A suction device for removing a mixed fluid from a collecting tank, comprising: a mixed fluid inlet for receiving the mixed fluid, said mixed fluid inlet being fluidically connectable to a connection port of said collecting tank, a mixed fluid outlet for discharging the mixed fluid, said mixed fluid outlet being fluidically connectable to a suction line, a flow channel extending between said inlet and said outlet, further comprising (a) a constriction member which is adapted to reduce a cross-section of the flow channel in at least a section thereof, wherein the constriction member can be moved relative to at least one of the inlet or the outlet into a first and a second position, the cross-section of the flow channel being less when the constriction member is in the second position than when the constriction member is in the first position, and (b) an air inlet which opens into the flow channel and which can be released or blocked for selectively feeding air into said flow channel, and wherein the air inlet is formed as a recess in the constriction member and is connected to an air passageway in the constriction member, which air passageway can be released or blocked.