Patent Number: 8,820,493

Title: Shock energy absorber

Abstract: A shock energy absorber includes, in one example, a cylinder having a closed end and an open end, a sleeve fixed about the open end of the cylinder, and a damping material in the form of an ultra high molecular weight polyethylene material in the cylinder. A plunger is positioned to be driven into the damping material via the sleeve. When the plunger is impacted and driven into the damping material, the damping material changes from a solid to a viscous fluid state thereby enabling absorption of a significant amount of energy.

Inventors: Parida; Basant K. (Bellingham, MA), Harrigan; Timothy (Franklin, MA), Carter; James (Bedford, MA), Dana; Norman (Albion, RI), Samavedam; Gopal (Sudbury, MA)

Assignee: Foster-Miller, Inc.

International Classification: F16F 9/30 (20060101)

Expiration Date: 9/02/12018