Patent ID: 7717395
Filing Date: 2010-05-18
Classification: F16M

Abstract:
1. An apparatus for supporting an axial load between first and second planes, the apparatus comprising: a first member positioning between the first and second planes and having opposite ends, one of the ends having a first surface bearing the axial load of the first plane, the other end having a first spiraling face the first member transferring the axial load at the first surface to a first compressive force at the first spiraling face; and a second member positioning between the first and second planes and having opposite ends, one of the ends having a second surface bearing the axial load of the second plane, the other end having a second spiraling face, the second member transferring the axial load at the second surface to a second compressive force at the second spiraling face, the second spiraling face positioning against the first spiraling face of the first member regardless of the first and second compressive forces, the second spiraling face opposing the second compressive force of the second member against the first compressive force of the first member, wherein the first and second members are rotatable relative to one another to adjust an axial dimension of the apparatus, and wherein the first and second compressive forces opposed between the first and second spiraling faces support the axial load between the first and second planes.