Gopal Gopal Samavedam

US Patent:

20110114427, May 19, 2011

Filed:

Oct 19, 2010

Appl. No.:

12/925354

Inventors:

Basant K. Parida - Bellingham MA, US
Timothy Harrigan - Franklin MA, US
James Carter - Bedford MA, US
Norman Dana - Albion RI, US
Gopal Samavedam - Sudbury MA, US

International Classification:

F16F 9/30
B23P 11/00

US Classification:

188268, 1883225, 29428

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.

US Patent:

20140326553, Nov 6, 2014

Filed:

Jul 16, 2014

Appl. No.:

14/332930

Inventors:

- Waltham MA, US
Timothy Harrigan - Franklin MA, US
James Carter - Bedford MA, US
Norman Dana - Albion RI, US
Gopal Samavedam - Sudbury MA, US

International Classification:

F16F 9/30
B61G 11/12

US Classification:

188268

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.