Patent ID: 8371587
Filing Date: 2013-02-12
Classification: H01M,Y02E

Abstract:
1. A bead seal comprising: an out-of-plane elongate protuberance formed on a planar metal sheet, the protuberance including a first lateral side and a spaced apart second lateral side with a substantially arcuate upper sealing surface disposed between the first lateral side and the second lateral side, wherein at least a first radius transitions from the planar metal sheet to the first lateral side and a second radius transitions from the first lateral side to the substantially arcuate upper sealing surface, at least one radius and a crown width define the substantially arcuate upper sealing surface, and at least a first radius transitions from the planar metal sheet to the second lateral side and a second radius transitions from the second lateral side to the substantially arcuate upper sealing surface, wherein the at least one radius of the substantially arcuate upper sealing surface curves outward in a first direction away from a plane of the planar metal sheet and at least one of the second radii curves outward in the first direction away from the plane of the planar metal sheet and towards the substantially arcuate upper sealing surface, and wherein the at least one radius of the substantially arcuate upper sealing surface is greater than the second radii, and wherein a range of the radii of the first lateral side and the second lateral side is between about 0.1 millimeters to 0.5 millimeters, a range of the at least one radius of the substantially arcuate upper sealing surface is between about 2.0 millimeters to 100 millimeters, and a range of the crown width of the substantially arcuate upper sealing surface is between about 0.5 millimeters to 5.0 millimeters.