Patent ID: 7219899

Claim:
A seal comprising: a tubular member having a length and a cross section that comprises: a top portion, a bottom portion, and opposing side portions; an interior surface and an exterior surface, wherein a sealing first contact surface comprises at least a portion of the top portion of the exterior surface; a pair of collapse-controlling protrusions located on the exterior surface, wherein each of the protrusions are located between the contact surface and one of the side portions such that the contact surface is located between the pair of protrusions; a first plurality of shape-maintaining cavities located along one side portion of the interior surface and a second portion of shape-maintaining cavities located along the opposing side portion of the interior surface, wherein the first and second pluralities are asymmetrically opposite each other about a vertical axis extending between the bottom and top portions and through a center of the tubular member; and a rotation-resisting extension; and means for attaching the seal to a desired object, wherein the means is operably attached to the tubular member along the member's length at the bottom portion of the member, wherein the rotation-resisting extension extends from the tubular member and operably connects to the means for attaching.