Inflatable air bag for motor vehicles for attenuating the impact effect of the passenger in case of accident

• US 3,907,328 A
• Filed: 06/14/1973
• Issued: 09/23/1975
• Est. Priority Date: 06/20/1970
• Status: Expired due to Term

• Current Assignee: Per Olof Werman
• Original Assignee: Per Olof Werman
• Inventors: Werman, Per Olof
• Primary Examiner(s): Betts, Kenneth H.
• Application Number:
  US05/370,087
• Time in Patent Office: 831 Days
• Field of Search: 280/15AB 244/138R 5/348,347
• US Class Current: 280/742
• CPC Class Codes: B60R 2021/23115 with inflatable support compartments creating an internal suction volume
• CPC Class Codes: B60R 21/231 characterised by their shape, construction or spatial configuration

Abstract

Inflatable air bag having one or several air intake openings for drawing air from the passenger compartment into the air bag, and closure means for automatically sealing the air intake openings after inflation of the air bag. The closure means may consist of bands, tubes, flaps and the like.

Claims

1. In an inflatable air bag disposed within the passenger compartment of a motor vehicle subject to impact and adapted for inflation with fluid supplied in part from a cartridge upon impact of the vehicle, the improvement wherein said bag has (a) a plurality of U-shaped tubes, each of said tubes being connected at one end to the cartridge and being disposed within said bag, (b) at least one air intake opening provided in the front wall thereof, and (c) closure means operably associated with said air intake opening for automatically sealing said air intake opening after inflation of said bag, said closure means comprising an inflatable tube having a free end which, upon inflation of said tube, extends through and seals said air intake opening.