| 20090054221 | CENTRIFUGE BOTTLE CLOSURE AND ASSEMBLY THEREOF - A closure for attachment to a centrifuge bottle. The closure comprises an end wall and a sidewall extending from the end wall. The sidewall comprises a first terminal end, a second terminal end, a first transition surface, and a second transition surface. The first terminal end has a first outer peripheral boundary at a first radial distance from an axial centerline. The second terminal end has a second outer peripheral boundary at a second radial distance from the axial centerline. The second radial distance is less than the first radial distance. The first transition surface extends between the first outer peripheral boundary and the second transition surface. The second transition surface extends between the first transition surface and the second outer peripheral boundary. | 02-26-2009 |
