초록 ▼

A millisecond delay surface connector suited for explosive blasting operations is provided in the form of a flexible detonation transmitter tube having a length of about one half foot and more with a delay cap connected to each end of the tube. The tube provides a hollow elongated gas channel having

A millisecond delay surface connector suited for explosive blasting operations is provided in the form of a flexible detonation transmitter tube having a length of about one half foot and more with a delay cap connected to each end of the tube. The tube provides a hollow elongated gas channel having the inside periphery of said tube coated with a layer of explosive for sustaining a percussion wave at high velocity along the length of the tube. Each cap includes an elongated tubular shell of rigid material having a closed terminal end portion, a layer of explosively inert material within the shell at the terminal end portion, a delay element within the shell and a detonating charge intermediate to said delay element and said explosively inert layer. The delay element is in propagative relationship with the tube and the detonating charge. A protective block housing each cap has several elongated cavities in side-by-side communicating relationship with the cap being retentively received in one of the cavities and the other cavities being suited to receive a detonating fuse in side-by-side relationship with the cap.

대표청구항 ▼

A bidirectional millisecond delay surface connector suited for trunkline explosive blasting operations comprising a flexible detonation transmitter duct having a length of about one half foot and more and providing a hollow elongated interior gas channel, said duct having means about the periphery o

A bidirectional millisecond delay surface connector suited for trunkline explosive blasting operations comprising a flexible detonation transmitter duct having a length of about one half foot and more and providing a hollow elongated interior gas channel, said duct having means about the periphery of said channel for sustaining a percussion wave at high velocity along the length of said duct, a delay cap connected to each end of said duct and terminating said channel, each of said caps comprising an elongated tubular shell of rigid material having a closed terminal end portion, a layer of explosively inert material within said shell at said terminal end portion, a delay element within said shell and a detonating charge intermediate said delay element and said explosively inert layer, said channel facing generally toward said delay element for directing said wave toward said element, said delay element being in propagative relationship with said duct and said detonating charge, said detonation transmitter duct being incapable of side initiating a detonating cord and of being initiated by said delay element, and a protective block for housing each cap, said block having a pair of elongated cavities in side-by-side communicating relationship, said cap being retentively received in one of said cavities, the other of said cavities being suited to receive a detonating fuse in side-by-side relationship with said cap.