Membrane switch venting arrangement for washing appliance

Details Membrane switch venting arrangement for washing appliance Membrane switch venting arrangement for washing appliance

A - Human Necessities

47

L

A47L 15/42 (2006.01) D06F 39/00 (2006.01)

Patent

CA 2432242

A membrane switch incorporated in a control panel of a domestic washing appliance is vented through a labyrinth venting arrangement composed of a long, small diameter, twisting passage, including concentric arcuate sections and an intermediate portion. The venting arrangement establishes an effective barrier to fluids and other moisture, while accommodating the free passage of gases. In the most preferred form, the labyrinth venting arrangement is formed by cutting a channel into a supporting plastic assembly and then adhesive bonding a control plate incorporating the membrane switch over the labyrinth feature to complete the passage. One end of the passage is open to atmosphere by way of a slot in the supporting plastic assembly, while the other end joins the venting path with the membrane switch.

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