Modular exploding foil initiator assembly
AssigneeReynolds Systems, Inc.
InventorsDaniel Swenston, Brent Chicoine
Life of this patent
Estimating the term…
Abstract
An exploding foil initiator (EFI) assembly includes: a housing assembly, having a base, one or more elongated supports spaced about a circumference of the base extending axially away from the base, and protuberances extending radially-inwardly toward a central axis; a spring configured to compress a leadframe, an insulator, a pellet sleeve, and an explosive pellet; and a retainer cap with a surface that abuts the spring that releasably engages the protuberances and compresses the spring while engaged with the protuberances.
Claims21
An exploding foil initiator (EFI) assembly, comprising:
- a housing assembly, having a base, elongated supports spaced about a circumference of the base extending axially away from the base, and protuberances extending away from a distal end of the elongated supports;
- an elastic member configured to compress a leadframe, an insulator, a pellet sleeve, and an explosive pellet;
- and
- a retainer cap with a surface that abuts the elastic member spring that releasably engages the protuberances and the retainer cap compresses the elastic member to direct an axial force received from the retainer cap towards the base while engaged with the protuberances.
An exploding foil initiator (EFI) assembly, comprising:
- a housing assembly, having a base, elongated supports spaced about a circumference of the base extending axially away from the base, and protuberances extending away from a distal end of the elongated supports;
- a leadframe having a plurality of elongated conductors, received by the housing assembly;
- a pellet sleeve received coaxially within the housing assembly, having an inner diameter;
- an insulator having a metallic foil attached to a surface;
- an explosive pellet received within the inner diameter of the pellet sleeve;
- an elastic member configured to compress the leadframe, the insulator, the pellet sleeve, and the explosive pellet;
- and
- a retainer cap, with a surface that abuts the elastic member, that releasably engages the protuberances and the retainer cap compresses the elastic member to direct an axial force received from the retainer cap towards the base while the retainer cap is engaged with the protuberances.
An exploding foil initiator (EFI) assembly, comprising:
- a housing assembly, having a base, elongated supports spaced about a circumference of the base extending axially away from the base, and protuberances extending away from a distal end of the elongated supports;
- an elastic member formed from foam configured to compress a leadframe, an insulator, a pellet sleeve, and an explosive pellet;
- and
- a retainer cap with a surface that abuts the elastic member that releasably engages the protuberances and the retainer cap compresses the elastic member while engaged with the protuberances.
Dependencies are inferred from the claim text.