Multi-layer impact resistant bumper

  • US 8,153,242 B2
  • Filed: 09/23/2008
  • Issued: 04/10/2012
  • Est. Priority Date: 10/02/2003
  • Status: Active Grant
First Claim
Patent Images

1. An impact resistant bumper device that is elongated along a longitudinal axis and mountable on a mounting member, the device having a cross-section having an open undersurface configuration comprising:

  • a first layer of a first polymer material having a first hardness or durometer;

    a second layer of a second polymer material having a second hardness or durometer;

    wherein the first layer is formed into an inner core body having an outer surface and an open undersurface;

    wherein the second layer is formed into a layer bonded to the outer surface of the first layer;

    a third layer of a third polymer material formed into an elongated strip bonded to the undersurface of the first layer;

    wherein the hardness or durometer of the first polymer is selected to be readily manually bendable and compressible;

    wherein the second polymer material has a hardness or durometer greater than the hardness or durometer of the first polymer material;

    wherein the third polymer material has a hardness or durometer and a degree of resistance to shrinkage that is greater than the hardness or durometer and degree of resistance to shrinkage of the first polymer material and resists shrinkage of the device at least along the longitudinal axis of the device.

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