EP 0913119 A1 19990506 - Shunt drain system
Title (en)
Shunt drain system
Title (de)
Nebenabflusssystem
Title (fr)
Système d'évacuation à déviation
Publication
Application
Priority
US 95941397 A 19971028
Abstract (en)
A dishwasher including a tub forming a wash chamber and a sump, a drain pump, a separate circulation pump, and a shunt drain system. The sump has a macerating chamber and a pump chamber each adapted to hold liquid from the wash chamber. The drain pump directly connects the macerating chamber to a drain line to move liquid from the macerating chamber to a household drain. The circulation pump moves liquid from the pump chamber to the wash chamber. The circulation pump has a shaft which extends into the macerating chamber and a blade attached to the shaft within the macerating chamber for chopping food particles therein. A tight space about the shaft forms a restricted passage between the pump chamber and the macerating chamber so that the drain pump can move liquid from the pump chamber to the household drain. The shunt drain system provides a direct flow path for liquid from the pump chamber to the drain pump. The shunt drain system includes a shunt drain conduit connecting the pump chamber with the drain pump and a shunt check valve in the shunt drain conduit movable between a closed position and an open position. The shunt check valve is moved between the open and closed positions in response to a pressure difference between the pump chamber and the shunt drain conduit. <IMAGE>
IPC 1-7
IPC 8 full level
A47L 15/42 (2006.01)
CPC (source: EP)
A47L 15/4204 (2013.01); A47L 15/4227 (2013.01)
Citation (search report)
- [XP] US 5762080 A 19980609 - EDWARDS JAMES M [US], et al
- [Y] US 5320120 A 19940614 - HOFFMAN ROGER L [US], et al
- [Y] GB 1151958 A 19690514 - BAUKNECHT GMBH G [DE]
Designated contracting state (EPC)
DE ES FR GB IT
DOCDB simple family (publication)
EP 0913119 A1 19990506; EP 0913119 B1 20030924; DE 69818391 D1 20031030; DE 69818391 T2 20040422; ES 2209023 T3 20040616
DOCDB simple family (application)
EP 98117020 A 19980909; DE 69818391 T 19980909; ES 98117020 T 19980909