Hood lift mechanisms utilizing active materials and methods of use
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United States of America Patent
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Jun 20, 2006
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app pub date -
Aug 6, 2004
filing date -
Aug 6, 2004
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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.
First Claim
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
- GM GLOBAL TECHNOLOGY OPERATIONS LLC;THE REGENTS OF THE UNIVERSITY OF MICHIGAN
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Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Brei, Diann | Milford, MI | 31 | 342 |
Browne, Alan L | Grosse Pointe, MI | 345 | 6404 |
Johnson, Nancy L | Northville, MI | 367 | 5735 |
Jones, Gary L | Farmington Hills, MI | 58 | 3083 |
Redmond, John | Ann Arbor, MI | 18 | 225 |
Wilmot, Nathan A | Waterford, MI | 10 | 219 |
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Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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