Land vehicles: bodies and tops – Bodies – Structural detail
Reexamination Certificate
2006-06-20
2006-06-20
Pape, Joseph D. (Department: 3612)
Land vehicles: bodies and tops
Bodies
Structural detail
C296S193110, C296S097220, C296S056000, C296S146400, C296S057100, C180S069210, C180S271000, C180S274000
Reexamination Certificate
active
07063377
ABSTRACT:
A hood lift mechanism for reversibly increasing the energy absorption capability at appropriate force levels of a vehicle hood includes a vehicle hood; an active material in operative communication with the vehicle hood, wherein the active material comprises a shape memory alloy, a ferromagnetic shape memory alloy, a shape memory polymer, a magnetorheological fluid, an electroactive polymer, a magnetorheological elastomer, an electrorheological fluid, a piezoelectric material, an ionic polymer metal composite, or combinations comprising at least one of the foregoing active materials; and an activation device in operative communication with the active material, wherein the activation device is operable to selectively apply an activation signal to the active material and effect a reversible change in a property of the active material, wherein the reversible change results in an increased clearance distance between the vehicle hood and an underlying component.
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Brei Diann
Browne Alan L.
Johnson Nancy L.
Jones Gary L.
Redmond John
General Motors Corporation
Marra Kathryn A.
Pape Joseph D.
University of Michigan
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