US12631431 - Fuse assembly and method for assembling the same
The patent describes a fuse assembly featuring a low energy exploding foil initiator (LEEFI) secured within a housing by a compliant sleeve that dampens shocks and vibrations. The assembly includes a latch mechanism with tabs that ensure a stable connection between the LEEFI casing and the housing, enhancing reliability in operation.
Claim 1
1 . A fuse assembly comprising: a low energy exploding foil initiator that includes a casing with an external annular flange; a housing including: a through opening defined by an inner wall, the inner wall having an annular groove; a first shelf; and a sleeve disposed between the low energy exploding foil initiator casing and the inner wall of the housing; the sleeve including: an outer surface that is pressed against the inner wall of the housing; an outer annular protrusion that resides in the annular groove of the housing; a bottom surface that rests against the first shelf of the housing; a shelf on which at least a portion of the external annular flange of the casing rests; an upper latch assembly comprising a plurality of tabs that are circumferentially spaced-apart from one another, each of the plurality of tabs including a cantilever beam having a head, the head including a bottom surface pressed against a top surface of the external annular flange of the low energy exploding foil initiator casing. a low energy exploding foil initiator that includes a casing with an external annular flange; a housing including: a through opening defined by an inner wall, the inner wall having an annular groove; a first shelf; and a through opening defined by an inner wall, the inner wall having an annular groove; a first shelf; and a sleeve disposed between the low energy exploding foil initiator casing and the inner wall of the housing; the sleeve including: an outer surface that is pressed against the inner wall of the housing; an outer annular protrusion that resides in the annular groove of the housing; a bottom surface that rests against the first shelf of the housing; a shelf on which at least a portion of the external annular flange of the casing rests; an upper latch assembly comprising a plurality of tabs that are circumferentially spaced-apart from one another, each of the plurality of tabs including a cantilever beam having a head, the head including a bottom surface pressed against a top surface of the external annular flange of the low energy exploding foil initiator casing. an outer surface that is pressed against the inner wall of the housing; an outer annular protrusion that resides in the annular groove of the housing; a bottom surface that rests against the first shelf of the housing; a shelf on which at least a portion of the external annular flange of the casing rests; an upper latch assembly comprising a plurality of tabs that are circumferentially spaced-apart from one another, each of the plurality of tabs including a cantilever beam having a head, the head including a bottom surface pressed against a top surface of the external annular flange of the low energy exploding foil initiator casing.
Google Patents
https://patents.google.com/patent/US12631431
USPTO PDF
https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/12631431