Abstract: A load bearing apparatus includes a first container having enclosed ends and at least one expansion segment. The expansion segment includes a first cylinder and a second cylinder of diameter smaller than the first cylinder disposed along a longitudinal axis of the first cylinder. An elastomer seal is connected between the first and second cylinders to form a fluid tight seal between the cylinders. The elastomer seal further permits translation of the first cylinder with respect to the second cylinder in a direction along the longitudinal axis of the first cylinder.
Type:
Grant
Filed:
May 10, 1999
Date of Patent:
August 6, 2002
Assignee:
Novellant Technologies, LLC
Inventors:
James J. Lee, Steven M. Byle, John C. Montague