Patent ID: 8226131

Claim:
A system for preventing ingress of liquid into an opening in a computer casing, comprising: a door comprising: a first edge having a hinge configured to rotatably connect the door to a first side of a recessed opening in the computer casing; a second edge having locking elements; and an inner surface having a plurality of protrusions; a layer of material having a plurality of slots corresponding to the plurality of protrusions on the inner surface of the door, being configured to adhere to the inner surface of the door, and having a chamfered edge; a bar positioned on a second side of the recessed opening for movable connection to the door and operable for travel in a first direction or a second direction opposite the first direction; a latch mounted on the bar and oriented in the first direction; and a spring having a first end connected to the bar and a second end connected to the recessed opening of the computer casing for biasing the bar in the first direction of travel, wherein closing the door causes the layer of material to contact a surface of the recessed opening and deflect the chamfered edge, wherein deflection of the chamfered edge forms a seal in the recessed opening.