Brakes – Plastic deformation or breakage of retarder element – Crushable element
Reexamination Certificate
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.
Abu-Odeh Akram Y.
Alberson Dean C.
Bligh Roger P.
Ness Jacob R.
Baker & Botts L.L.P.
The Texas A&M University System
Williams Thomas J
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