Multi-nuit pyrotechnic initiation system

• US 20030154876A1
• Filed: 03/27/2003
• Published: 08/21/2003
• Est. Priority Date: 10/31/2000
• Status: Active Grant

• Current Assignee: Special Devices Incorporated (Daicel Corporation)
• Original Assignee: Special Devices Incorporated (Daicel Corporation)
• Inventors: Chimayan, Mher, Kajita, Eishi, Avetisian, Vahan
• Granted Patent: US 6,763,764 B2
• Time in Patent Office: Days
• US Class Current: 102/202.14
• CPC Class Codes: C06C 9/00 Chemical contact igniters; Chemical lighters
• CPC Class Codes: F42B 3/103 Mounting initiator heads in initiators; Sealing-plugs

Abstract

A multi-unit pyrotechnic initiation system includes two or more pyrotechnic initiators molded in place into a base. Each initiator preferably includes a body overmolded around an igniter. The retainers of two or more pyrotechnic initiators may be formed together as part of a unitary substructure.

Claims

1. A multi-unit pyrotechnic initiation system, comprising:

a plurality of pyrotechnic initiators, each said initiator having a nonconductive body; and

a base into which each said body is molded.

2. The system of claim 1, wherein each said initiator comprises a retainer.

3. The system of claim 2, wherein each said initiator further comprises a connector toward which said retainer opens.

4. The system of claim 2, wherein each said retainer further comprises a flange engaging said base.

5. The system of claim 1, wherein each said initiator comprises an igniter, and wherein said body is overmolded around said igniter.

6. The system of claim 1, wherein said body is composed of nylon.

7. A multi-unit pyrotechnic initiation system, comprising:

a substructure comprising a base and a plurality of retainers; and

a nonconductive body molded in place around each said retainer.

8. The system of claim 7, further comprising an igniter adjacent each retainer.

9. The system of claim 8, wherein each said body is overmolded around each said igniter.

10. The system of claim 7, wherein said body is composed of nylon.

11. A method for making a multi-unit pyrotechnic initiation system, comprising the steps of:

inserting a plurality of retainers into a base;

placing an igniter adjacent each said retainer;

placing said base, retainers, and igniters into a mold adapted to form an overmolded body around each said retainer and adjacent said igniter;

injecting liquid into said mold, said liquid adapted for injection molding; and

allowing said liquid to harden.

12. A method for making a multi-unit pyrotechnic initiation system, comprising the steps of:

providing a substructure comprising a plurality of retainers interconnected by a base;

placing an igniter adjacent each said retainer;

placing said substructure, retainers and igniters into a mold adapted to form an overmolded body around each said retainer and adjacent said igniter;

injecting liquid into said mold, said liquid adapted for injection molding; and

allowing said liquid to harden.

13. The method of claim 12, further comprising the step of stamping said substructure from a single metal sheet.