Ammunition and explosives – Igniting devices and systems
Patent
1975-02-10
1976-10-26
Pendegrass, Verlin R.
Ammunition and explosives
Igniting devices and systems
102 22R, C06C 506
Patent
active
039877337
ABSTRACT:
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.
REFERENCES:
patent: 927968 (1909-07-01), Harle
patent: 3420174 (1969-01-01), Potter
patent: 3590739 (1971-01-01), Persson
patent: 3669021 (1972-06-01), Spencer et al.
patent: 3709149 (1973-01-01), Driscoll
patent: 3739724 (1973-06-01), Tlam
patent: 3878785 (1975-04-01), Lundborg
Gladden Ernest Laird
Spraggs Richard William
Pendegrass Verlin R.
The Ensign-Bickford Company
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