Ordnance – Explosive operated apparatus
Reexamination Certificate
2008-03-14
2010-06-15
Hayes, Bret (Department: 3641)
Ordnance
Explosive operated apparatus
Reexamination Certificate
active
07735405
ABSTRACT:
A safety arrangement for a motor vehicle includes a pyrotechnic actuator for retracting a hinge pin of a vehicle hood. The pyrotechnic actuator includes a housing defining a longitudinal axis and further includes a first end defining an opening. The pyrotechnic actuator additionally includes a piston disposed in the housing for movement along the longitudinal axis between an extended position and a retracted position. The piston carries the pin. The pin at least partially extends from the housing in the extended position. The piston includes a base portion defining a combustion chamber. The pyrotechnic actuator further includes a pyrotechnic charge disposed in the combustion chamber for producing a combustion gas operative to move the piston from the extended position to the retracted position. The combustion chamber is defined by a thin walled member that is sealed to contain the ballistic event.
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Written Opinion of the International Searching Authority and International Search Report for International Application No. PCT/US2009/036978, dated Jul. 7, 2009, 9 Pages.
Autoliv ASP Inc.
Brown Sally J
Harness Dickey & Pierce
Hayes Bret
Tillman, Jr. Reginald
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