Inventors:
Robert T. McKnight - Downsville MD
Clifford A. Metger - Hagerstown MD
Kent Wilson - Woodbury MN
Assignee:
Ergodyne Corporation - St. Paul MN
International Classification:
B32B 102
US Classification:
428 357, 428 368, 428213, 4284248, 21611, 21612, 21613, 21614, 21615, 21616, 2 16, 2 20, 2 21
Abstract:
A laminate article for damping mechanical vibrations. One embodiment of the damping article includes a neoprene layer, a foamed polyurethane middle layer, and a nonfoamed polyurethane layer. The layers are preferably adhered in an overlaying relation. The article reduces at least 40% of high frequency mechanical vibrations (200 Hz-1250 Hz) otherwise transmitted to the wearer.