Energy absorbing device having notches and pre-bent sections

Details Energy absorbing device having notches and pre-bent sections Energy absorbing device having notches and pre-bent sections

2008-06-24

2008-06-24

Williams, Thomas J (Department: 3683)

Brakes

Plastic deformation or breakage of retarder element

Crushable element

C188S376000, C256S013100

Reexamination Certificate

active

07389860

ABSTRACT:
According to one embodiment of the invention, an energy-absorbing device includes a section of material having a plurality of crush zones along a longitudinal length thereof, a first crush zone of the plurality of crush zones including a pair of opposed first bends formed in a first side and a second side of the section, a pair of opposed second bends formed in a third side and a fourth side of the section, and a first set of notches spaced around a perimeter of the section at a longitudinal location corresponding to the first bends and second bends. The first bends project in a direction that is one of inward and outward and the second bends project in a direction opposite that of the first bends. At least one of the other crush zones includes a second set of notches spaced around the perimeter of the section.

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PCT Search Report & Written Opinion for PCT/US2005/010717, 15 pages, Oct. 7, 2005.

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