Vent structure for dishwashers
First Claim
1. A dishwasher of the batch type comprising a body providing an enclosure,water spray means mounted in the enclosure for spraying water on to dishes placed therein,a sump within the enclosure receiving liquid that drains thereto,a door for the enclosure pivotably mounted to the body and movable between open and closed positions,seal means mounted around the said body opening and engaged by the door in closed position for sealing the junction between the body and the door,vent means comprising a vent structure mounted to the body to one side of the door, the said vent structure providing at least one labyrinth vent passage connecting the body interior and the ambient atmosphere through which gas and vapour from the body interior can pass with change of direction of flow so as to promote contact thereof with the walls of the vent passage, andthe vent structure also providing at least one vertical drain passage connecting the vent passage and the sump and having passage walls in common with the vent passage whereby moisture condensing on the said walls drains down to the said sump.
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Accused Products
Abstract
A dishwasher of the batch type is provided with vent means to atmosphere to relieve pressure build-up in its interior. The vent means consist of a vent structure disposed to one side of a front-opening door, preferably one on either side, this structure providing a horizontal vent passage that intersects a vertical drain passage leading to the dishwasher sump. The structure is formed by three elongated members of various shapes, that fit together to provide two separate drain channels of the drain passage, and that also provide a channel receiving and supporting the door side sealing gaskets.
28 Citations
6 Claims
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1. A dishwasher of the batch type comprising a body providing an enclosure,
water spray means mounted in the enclosure for spraying water on to dishes placed therein, a sump within the enclosure receiving liquid that drains thereto, a door for the enclosure pivotably mounted to the body and movable between open and closed positions, seal means mounted around the said body opening and engaged by the door in closed position for sealing the junction between the body and the door, vent means comprising a vent structure mounted to the body to one side of the door, the said vent structure providing at least one labyrinth vent passage connecting the body interior and the ambient atmosphere through which gas and vapour from the body interior can pass with change of direction of flow so as to promote contact thereof with the walls of the vent passage, and the vent structure also providing at least one vertical drain passage connecting the vent passage and the sump and having passage walls in common with the vent passage whereby moisture condensing on the said walls drains down to the said sump.
Specification