Hood lift mechanisms utilizing active materials and methods of use

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 7556117
APP PUB NO 20070068721A1
SERIAL NO

11533417

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Abstract

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Hood lift mechanisms for reversibly increasing the energy absorption capability at appropriate force levels of a vehicle closure includes a vehicle closure; an active material in operative communication with the vehicle closure, 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 closure and an underlying component.

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Patent Owner(s)

  • GM GLOBAL TECHNOLOGY OPERATIONS LLC;THE REGENTS OF THE UNIVERSITY OF MICHIGAN

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Barnes, Brian M Ypsilanti , US 4 65
Brei, Diann Milford , US 31 343
Browne, Alan L Grosse Pointe , US 345 6412
Johnson, Nancy L Northville , US 367 5744
Luntz, Jonathan E Ann Arbor , US 29 170
Strom, Kenneth A Washington , US 11 197

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