Apparatus for manufacturing detonators and resistors

Details Apparatus for manufacturing detonators and resistors Apparatus for manufacturing detonators and resistors

1974-03-18

1976-04-27

Tudor, Harold

Ammunition and explosive-charge making

Miscellaneous

29203R, 29610R, 86 20R, C06B 2100, F42B 3310

Patent

active

039526283

ABSTRACT:
An apparatus primarily for the manufacture of detonators in which measuret of the internal electrical resistance of a conductive explosive mixture is made during assembly to determine if the supplied firing energy would initiate said detonator and reject the detonator if the resistance is outside a selected range. During assembly, the apparatus also provides for situations in which the housing is insufficiently loaded, overloaded, or misaligned by recycling or rejecting the detonator assembly whenever said assembly is insufficiently loaded, or rejecting said detonator assembly whenever it is misaligned with respect to the loading compressing mechanism or whenever the detonator housing is overloaded with conductive explosive material. The manufacturing apparatus including the electrical control system which comprises a volume acceptance switch, a maximum pressure switch, and an electrical resistance measurement circuit is designed to produce detonators having uniform firing characteristics.

REFERENCES:
patent: 2520394 (1950-08-01), Franzen-Lutz et al.
patent: 2806930 (1957-09-01), Vager
patent: 2939176 (1960-07-01), Adelman
patent: 3002457 (1961-10-01), Doughty
patent: 3067465 (1962-12-01), Giardini et al.
patent: 3109372 (1963-11-01), Stresau
patent: 3153976 (1964-10-01), Lunder
patent: 3303737 (1967-02-01), Kyle
patent: 3426643 (1969-02-01), Dillehay
patent: 3710241 (1973-01-01), Dineen
patent: 3712581 (1973-01-01), Parlow
patent: 3742811 (1973-07-01), Kabik

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