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VEHICLE KNEE BAG

  • US 3,768,830 A
  • Filed: 09/23/1970
  • Issued: 10/30/1973
  • Est. Priority Date: 09/23/1970
  • Status: Expired due to Term
First Claim
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1. Safety apparatus for protecting an occupant of a vehicle during an accident, said safety apparatus comprising a confinement means expandable from a collapsed condition to an expanded condition in which said confinement means is adapted to restrain movement of the occupant of the vehicle, said confinement means including means defining a first compartment positioned to engage the legs of the occupant at, or below, the knee upon expansion of the confinement means to the expanded condition, and means defining a second compartment fluidically in series with said first compartment for engaging the torso of the occupant upon expansion of the confinement means to the expanded condition, means for effecting expansion of the confinement means to the expanded condition including means for providing a flow of fluid in response to the occurrence of an accident, and means for initiating expansion of said first compartment prior to initiation of expansion of said second compartment and including control means which initially blocks fluid flow into said second compartment and in response to the presence of a predetermined fluid pressure in said first compartment and enables fluid to flow into said second compartment whereby said first compartment may be effective to maintain said occupant in seated position during expansion of said second compartment.

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