US2020378736A1PendingUtilityA1

Wall Breaching Charge

Assignee: SUPRAMECA SASPriority: Mar 25, 2019Filed: Mar 24, 2020Published: Dec 3, 2020
Est. expiryMar 25, 2039(~12.7 yrs left)· nominal 20-yr term from priority
Inventors:Dominique Vinci
F42D 1/02F42B 1/028F42D 1/043F42B 1/02
14
PatentIndex Score
0
Cited by
0
References
0
Claims

Abstract

A wall breaching system that may be used in order to gain a man size access hole thru a double reinforced concrete or masonry wall where each wall contains rebar mesh or other reinforcing materials. The system utilizes a combination of linear shape charges that are fired simultaneously with detonation cord strands connected together via an initiation connection subsystem. An innovative priming well located at each of the linear shape charges allows the operator to wrap detonation cord around a bulk explosive for initiation of each of the linear shape charges.

Claims

exact text as granted — not AI-modified
1 . An explosive wall breaching system comprising:
 a) at least two linear shape charges each comprising
 i) an exterior housing defining an interior chamber, 
 ii) a top lid, 
 iii) securing mechanisms, and 
 iv) optionally a bi-metallic liner; 
   b) one or more detonation cords each optionally comprising a non-electric blasting cap at one end;   c) a support bracket assembly comprising a support pole;   d) optionally a central initiation system comprising
 i) a detonation cord housing defining an interior chamber, 
 ii) at least one blasting cap comprising an initiation train, and 
 iii) a blasting cap retention top, optionally configured to contain two blasting caps; and 
 e) optionally adhesive attached to the exterior housing. 
   
     
     
         2 . The explosive wall breaching system of  claim 1 , wherein each of the at least two linear shape charges has a priming port. 
     
     
         3 . The explosive wall breaching system of  claim 2 , wherein each priming port has threads for wrapping the one or more detonation cords. 
     
     
         4 . The explosive wall breaching system of  claim 2 , wherein each priming port contains a non-electric blasting cap attached to the end of the one or more detonation cords. 
     
     
         5 . The explosive wall breaching system of  claim 4 , wherein the non-electric blasting cap attached to the end of the one or more detonation cords is secured to each priming port via a blasting cap retention system. 
     
     
         6 . The explosive wall breaching system of  claim 1 , wherein each of the at least two linear shape charges attach to the support bracket assembly. 
     
     
         7 . The explosive wall breaching system of  claim 1 , wherein six linear shape charges attach to the support bracket assembly in a hexagonal configuration. 
     
     
         8 . The explosive wall breaching system of  claim 1 , wherein each of the at least two linear shape charges attach to the support bracket assembly via male/female connectors. 
     
     
         9 . The explosive wall breaching system of  claim 2 , wherein each priming port is configured for use with a booster in combination with a detonation cord. 
     
     
         10 . The explosive wall breaching system of  claim 1 , wherein each of the one or more detonation cords is in physical contact with the detonation cord housing. 
     
     
         11 . The explosive wall breaching system of  claim 1 , wherein the central initiation system further comprises bulk explosive within the interior chamber of the detonation cord housing. 
     
     
         12 . The explosive wall breaching system of  claim 1 , wherein the central initiation system simultaneously detonates the at least two linear shape charges. 
     
     
         13 . The explosive wall breaching system of  claim 1 , wherein upon detonation the system breaches a man-sized hole in a reinforced concrete wall with a single explosive event. 
     
     
         14 . A method of operating the explosive wall breaching system according to  claim 4 , comprising:
 a) preparing the at least two linear shape charges comprising
 i) inserting bulk explosives into the interior chamber of the housing of each linear shape charge 
 ii) inserting bulk explosives into the bulk explosive void of the priming port of each top lid; 
 iii) attaching the top lid to each housing; 
 iv) placing the non-electric blasting cap attached to the end of the one or more detonation cords in the priming port; 
   b) connecting each of the at least two linear shape charges to the support bracket assembly;   c) preparing the central initiation system comprising
 i) inserting bulk explosive into the detonation cord housing interior chamber, 
 ii) attaching the one or more detonation cords to the detonation cord housing; 
 iii) attaching the blasting cap retention top to the detonation cord housing; 
   d) attaching the central initiation system onto the support bracket assembly;   e) inserting the blasting cap with initiation train into the blasting cap retention top;   e) attaching the explosive wall breaching system to the target; and   f) detonating the explosive wall breaching system.   
     
     
         15 . The method according to  claim 14 , wherein the non-electric blasting cap is secured to each priming port via a blasting cap retention system. 
     
     
         16 . The method according to  claim 14 , further comprising applying one side of double-sided adhesive to the housing of each linear shape charge. 
     
     
         17 . The method of operation according to  claim 16 , further comprising activating the second side of the double-sided adhesive to secure the explosive wall breaching system to the target prior to detonation. 
     
     
         18 . A method of operating the explosive wall breaching system according to  claim 3 , comprising:
 a) preparing the at least two linear shape charges comprising
 i) inserting bulk explosives into the interior chamber of the housing of each linear shape charge 
 ii) inserting bulk explosives into the bulk explosive void of the priming port of each top lid; 
 iii) attaching the top lid to each housing; 
 iv) wrapping the one or more detonation cords around each priming port; 
 v) securing the one or more detonation cords to each priming port; 
   b) connecting each of the at least two linear shape charges to the support bracket;   c) preparing the central initiation system comprising
 i) inserting bulk explosive into the detonation cord housing interior chamber, 
 ii) attaching the one or more detonation cords to the detonation cord housing, 
 iii) attaching the blasting cap retention top to the detonation cord housing; 
   d) attaching the central initiation system onto the support bracket assembly;   e) inserting a blasting cap with initiation train into the blasting cap retention top;   e) attaching the explosive wall breaching system to the target; and   f) detonating the explosive wall breaching system.   
     
     
         19 . The method according to  claim 18 , further comprising applying one side of double-sided adhesive to the housing of each linear shape charge. 
     
     
         20 . The method of operation according to  claim 19 , further comprising activating the second side of the double-sided adhesive to secure the explosive wall breaching system to the target prior to detonation. 
     
     
         21 . A method of operating the explosive wall breaching system according to  claim 9  comprising:
 a) preparing the at least two linear shape charges comprising
 i) inserting bulk explosives into the interior chamber of the housing of each linear shape charge 
 ii) placing a booster in the protrusion of the priming port of each top lid, 
 iii) inserting the one or more detonation cords through the booster, 
 iv) making a loop on the end of the one or more detonation cords outside of the priming port, 
 v) locking the loop with adhesive tape, 
 vi) inserting bulk explosives into the bulk explosive void of the priming port of each top lid, 
 vii) attaching the top lid to each housing; 
 
 b) connecting each of the at least two linear shape charges to the support bracket assembly; 
 c) preparing the central initiation system comprising
 i) inserting bulk explosive into the detonation cord housing interior chamber, 
 ii) attaching the one or more detonation cords to the detonation cord housing, 
 iii) attaching the blasting cap retention top to the detonation cord housing; 
 
 d) attaching the central initiation system onto the support bracket assembly; 
 e) inserting a blasting cap with initiation train into the blasting cap retention top; 
 e) attaching the explosive wall breaching system to the target; and 
 f) detonating the explosive wall breaching system. 
 
     
     
         22 . The method according to , further comprising applying one side of double-sided adhesive to the housing of each linear shape charge. 
     
     
         23 . The method of operation according to  claim 22 , further comprising activating the second side of the double-sided adhesive to secure the explosive wall breaching system to the target prior to detonation.

Join the waitlist — get patent alerts

Track US2020378736A1 — get alerts on status changes and closely related new filings.

We store only your email — no account needed. See our privacy policy.