Electronic safe, arm, and fire device configured to reject signals below a predetermined 'all-fire' voltage

Abstract

An electronic ignition safety device configured to reject signals below a predetermined ‘all-fire’ voltage includes an exploding foil initiator having an electrical input and an output end, and an electronic fireset electrically connected to the electrical input of the exploding foil initiator. The device also includes a through bulkhead initiator (TBI) body, a donor charge disposed adjacent the output end of the exploding foil initiator, and an acceptor charge. The device further includes an integral barrier disposed between the donor charge and the acceptor charge, and one or more of the donor charge, the acceptor charge, and/or the integral barrier being disposed within a component part that is assembled to the TBI body. The device also includes an output charge disposed adjacent the acceptor charge.

1 . An electronic ignition safety device configured to reject signals below a predetermined ‘all-fire’ voltage, comprising:
 an exploding foil initiator having an electrical input and an output end; 
 an electronic fireset electrically connected to the electrical input of the exploding foil initiator; 
 a through bulkhead initiator (TBI) body; 
 a donor charge disposed adjacent the output end of the exploding foil initiator; 
 an acceptor charge; 
 an integral barrier disposed between the donor charge and the acceptor charge; 
 one or more of the donor charge, the acceptor charge, and/or the integral barrier being disposed within a component part that is assembled to the TBI body; and 
 an output charge disposed adjacent the acceptor charge. 
 
     
     
         2 . The device of  claim 1 , further comprising a bushing in which is disposed the donor charge, the integral barrier being disposed adjacent to the bushing, wherein the bushing, the acceptor charge, and the integral barrier being disposed within the TBI body. 
     
     
         3 . The device of  claim 1 , further comprising:
 a bushing in which is disposed the donor charge; and   a washer in which is disposed the acceptor charge, wherein the integral barrier, the bushing and the washer being disposed within the TBI body.   
     
     
         4 . The device of  claim 1 , further comprising a washer in which is disposed the acceptor charge, wherein the donor charge, the washer and the integral barrier being disposed within the TBI body. 
     
     
         5 . The device of  claim 1 , further comprising a bushing in which is disposed the donor charge, wherein the bushing, the integral barrier and the acceptor charge being disposed within the TBI body. 
     
     
         6 . The device of  claim 1 , wherein the exploding foil initiator is configured to detonate in response to a signal only if the signal exceeds a predetermined voltage. 
     
     
         7 . The device of  claim 2 , wherein the predetermined voltage is at least 500V. 
     
     
         8 . The device of  claim 1 , further comprising a sealing closure adjacent the output charge, and an output port. 
     
     
         9 . The device of  claim 1 , further comprising a gap between the output end of the exploding foil initiator and the donor charge. 
     
     
         10 . The device of  claim 1 , wherein the device comprises an electronic safe, arm, and fire device. 
     
     
         11 . An electronic ignition safety device configured to reject signals below a predetermined ‘all-fire’ voltage, comprising:
 an exploding foil initiator having an electrical input and an output end; 
 a fireset electrically connected to the electrical input of the exploding foil initiator; 
 an output charge; and 
 a structure having a plurality of components assembled together, wherein the structure being configured to propagate detonation of the exploding foil initiator to the output charge. 
 
     
     
         12 . The device of  claim 11 , wherein the structure comprises:
 a through bulkhead initiator (TBI) body;   a donor charge disposed adjacent the output end of the exploding foil initiator;   an acceptor charge;   an integral barrier disposed between the donor charge and the acceptor charge;   one or more of the donor charge, the acceptor charge, and/or the integral barrier being disposed within a component part that is assembled to the TBI body.   
     
     
         13 . The device of  claim 12 , further comprising a bushing in which is disposed the donor charge, the integral barrier being disposed adjacent to the bushing, wherein the bushing, the acceptor charge, and the integral barrier being disposed within the TBI body. 
     
     
         14 . The device of  claim 12 , further comprising:
 a bushing in which is disposed the donor charge; and   a washer in which is disposed the acceptor charge, wherein the integral barrier, the bushing and the washer being disposed within the TBI body.   
     
     
         15 . The device of  claim 12 , further comprising a washer in which is disposed the acceptor charge, wherein the donor charge, the washer and the integral barrier being disposed within the TBI body. 
     
     
         16 . The device of  claim 12 , further comprising a bushing in which is disposed the donor charge, wherein the bushing, the integral barrier and the acceptor charge being disposed within the TBI body. 
     
     
         17 . The device of  claim 11 , wherein the exploding foil initiator is configured to detonate in response to a signal only if the signal exceeds a predetermined voltage. 
     
     
         18 . The device of  claim 17 , wherein the predetermined voltage is at least 500V. 
     
     
         19 . The device of  claim 11 , further comprising a sealing closure adjacent the output charge, and an output port. 
     
     
         20 . The device of  claim 11 , further comprising a gap between the output end of the exploding foil initiator and the donor charge.