AIR BAG FOR MOTOR VEHICLES FOR THE PREVENTION OF INJURIES IN COLLISIONS

• US 3,776,570 A
• Filed: 06/11/1971
• Issued: 12/04/1973
• Est. Priority Date: 06/16/1970
• Status: Expired due to Term

• Current Assignee: Per Olof Weman
• Original Assignee: Per Olof Weman
• Inventors: Weman, Per Olof
• Primary Examiner(s): Betts, Kenneth H.
• Assistant Examiner(s): Silverstrim, John P.
• Application Number:
  US05/152,130
• Time in Patent Office: 907 Days
• Field of Search: 23/281 102/39,101 244/31 280/15AB
• US Class Current: 280/738
• CPC Class Codes: B60R 21/23 Inflatable members B60R21/18 takes precedence; connection to inflation fluid source retainers B60R21/217
• CPC Class Codes: B60R 21/2646 the reacting substances being supported by the inflatable member walls, or by a flexible support within it
• CPC Class Codes: F42B 3/04 for producing gas under pressure generators of inflation fluid especially adapted for vehicle air bags B60R21/26

Abstract

An air bag for preventing injuries to the passengers of a motor vehicle having on the inner wall of the bag a coating of a substance adapted to generate a gas to inflate the air bag. The coating may be arranged in discrete sections and be fired by an electric ignition device. Additionally air intake openings may be provided, for sucking in air from the passenger compartment.

Claims

1. An air bag for motor vehicles for the prevention of injuries to passengers in collisions, said air bag comprising a plastic sheet provided with an inner wall having an explosible coating in communication therewith adapted to generate a gas to inflate said air bag, said explosible coating being distributed over a substantial portion of said inner wall.

2. An air bag as recited in claim 1 wherein the coating is arranged in discrete sections on the inner wall of the air bag.

3. An air bag as recited in claim 2 wherein the air bag is provided with an electrical ignition device for igniting the coating.

4. An air bag as recited in claim 2 wherein the air bag is provided with air intake openings.

5. An air bag as recited in claim 4 wherein said coating is black powder.