Energy-absorbing pads

Details Energy-absorbing pads Energy-absorbing pads

2005-08-25

2011-10-18

O'Hern, Brent (Department: 1783)

Stock material or miscellaneous articles

Sheet including cover or casing

Complete cover or casing

C002S412000, C002S418000, C428S067000, C428S068000, C428S071000, C428S098000, C428S138000, C428S304400, C428S411100

Reexamination Certificate

active

08039078

ABSTRACT:
An energy-absorbing pad structure includes an energy-absorbing pad that is encapsulated by a polymeric film. The polymeric film is sufficiently air-permeable to permit air to escape during rapid compression of the pad structure, such as from a high-speed dynamic impact, but nonetheless is water resistant under ordinary conditions. It is desirable that the polymeric film is made from an elastic polymer. The air-permeability can be provided from a series of perforations such that the film's elastic quality tends to contract the perforations thereby impeding the progress of water through them under normal conditions. The energy-absorbing pad can be a semi-rigid viscoelastic foam.

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