Abstract: A method for the validation of a fuse head in an electronic detonator is disclosed, the method including measuring at least once a first charge time; activating a switching means to a second position to replace a reference resistor in an RC circuit with the fuse head; measuring at least once a second charge time; and determining the deviation of the second charge time from the first charge time.
Type:
Grant
Filed:
March 29, 2016
Date of Patent:
September 17, 2019
Assignee:
MaxamCorp Holding, S.L.
Inventors:
Luis Diego Montaño Rueda, Hendrik Van Niekerk, José Manuel Botija González, Íñigo Zabalo Arena
Abstract: There is provided an electronic detonator with electronic delayer, comprising: —a conductive shell comprising —an open end for receiving elements such as an explosive charge, and —a closed end, and —a printed circuit board (PCB) comprising the electronic circuit of the delayer, the printed circuit board being placed inside the conductive shell, characterized in that the electronic detonator further comprises at least a resilient, compressible and conductive gasket —positioned by the open end in a space defined by the PCB and an inner surface of the conductive shell, —filling at least part of the space between the PCB and the inner surface of the conductive shell, such that protection against electromagnetic interferences (EMI) is allowed and —contacting the ground connection of the PCB and the inner surface of the conductive shell such that acts as connection path for grounding the PCB, allowing protection against electro-static interference (ESD).
Type:
Grant
Filed:
March 30, 2016
Date of Patent:
May 7, 2019
Assignee:
MaxamCorp Holding, S.L.
Inventors:
Luis Diego Montaño Rueda, Jose Maria Ayensa Muro
Abstract: Systems and methods for chemoremediation or mechanical destruction of undetonated explosive materials. An explosive apparatus contains an explosive material in close proximity to a chemical reagent selected for its chemoremediative properties. A barrier is interposed between the explosive material and the chemical reagent to delay the chemoremediation of the explosive material. Alternatively a water expandable material may be incorporated into the explosive material, whereby upon exposure to moisture the water absorbing material will expand sufficiently to fragment the explosive material into initiation insensitive particles. Initiation insensitivity is achieved by incorporation of water, which acts as a desensitizing agent as well as fragmenting the explosive material into particles sufficiently small that they are below the critical diameter for explosive initiation.
Type:
Grant
Filed:
June 24, 2010
Date of Patent:
November 19, 2013
Assignee:
MaxamCorp Holding S.L.
Inventors:
Carl Hermanus Lubbe, Delana Harris, José Manuel Botija González, Fernando María Beitia Gómez De Segura
Abstract: Systems and methods for chemoremediation or mechanical destruction of undetonated explosive materials. An explosive apparatus contains an explosive material in close proximity to a chemical reagent selected for its chemoremediative properties. A barrier is interposed between the explosive material and the chemical reagent to delay the chemoremediation of the explosive material. Alternatively a water expandable material may be incorporated into the explosive material, whereby upon exposure to moisture the water absorbing material will expand sufficiently to fragment the explosive material into initiation insensitive particles. Initiation insensitivity is achieved by incorporation of water, which acts as a desensitizing agent as well as fragmenting the explosive material into particles sufficiently small that they are below the critical diameter for explosive initiation.
Type:
Application
Filed:
June 24, 2010
Publication date:
February 24, 2011
Applicant:
Maxamcorp Holding S.L.
Inventors:
Carl Hermanus Lubbe, Delana Harris, Jose Manuel Botija González, Fernando María Beitia Gómez De Segura