Patent ID: 8128396

Claim:
An elongated sealing device for forming an airtight seal between a first body and a second body, the sealing device comprising: a primary seal portion having a substantially crescent-shaped cross-section, wherein the primary seal portion comprises: an outer surface configured to face away from the first body; an inner surface opposite the outer surface and configured to face toward the first body; a first cusp at which the outer surface joins with the inner surface; and a second cusp at which the outer surface joins with the inner surface, wherein the distance from the first cusp to the second cusp defines a width of the sealing device; and a tab portion protruding outward from and integral with the inner surface of the primary seal portion and configured to mate with the first body, wherein the tab portion comprises: an elongated secondary seal attached to the inner surface of the primary seal portion and having an inner portion, an outer portion, a third cusp, and a fourth cusp located inward of the first cusp and the second cusp, the secondary seal being substantially crescent-shaped in cross-section and curved in the same direction as the primary seal portion, wherein the sealing device is flexible and is configured such that when a force compresses the sealing device onto the first body, air is forced out from between the sealing device and the first body and air pressure and friction forces maintain an airtight seal between the sealing device and the first body.