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4. 发明专利

JPH08504936A 失效
公开(公告)号：JPH08504936A
公开(公告)日：1996-05-28
申请号：JP51531994
申请日：1993-12-17
IPC分类号： F42C11/06 , F42B3/12 , F42B3/16 , F42C11/02 , F42C15/31 , F42D1/045 , F42D1/05

5. 发明专利

JPH0875400A SEQUENTIAL BLASTING SYSTEM 失效
公开(公告)号：JPH0875400A
公开(公告)日：1996-03-19
申请号：JP10574595
申请日：1995-04-28
申请人： EURO MATSUSHITA ELECTRIC WORKS
发明人： HAINTSU RITSUTAA , UORUFU SHIYUTAINBIHIRAA
IPC分类号： F42C11/06 , F42C15/40 , F42D1/055
摘要： PURPOSE: To obtain an inexpensive circuit and satisfy the safety of operation even when a faulty detonator exists by a method wherein respective pulses, supplied to one channel in a pair of channels, is provided with a low voltage initial period interval, superposed on respective preceding pulses supplied to the other channel. CONSTITUTION: Respective detonator stages S1, S2..., made so as to be same, are provided with a series circuit, installed between two supply lead wires A, 0. Only when the thyristor T of the stage S1 has become an excited condition, a connection achieves a voltage, permitting a resistor R1 to charge a capacitor C to a high voltage capable of achieving the igniting voltage of the thyristor T in the stage S1. A delay of achieving the excited condition of the thyristor T in the stage S2 after the enabled condition of the thyristor T in the stage S1 depends on the time constant of an RC element, formed by the resistor R1 and the capacitor C. The propagation of a trigger pulse from some stage to a next stage with a predetermined delay has no relation to a detonating means ZE in such a manner.

6. 发明专利

JPH03291500A IMPACT ACTION FUSE 失效
公开(公告)号：JPH03291500A
公开(公告)日：1991-12-20
申请号：JP9097490
申请日：1990-04-05
申请人： MITSUBISHI ELECTRIC CORP
发明人： OSAKI MASARU
IPC分类号： F42C11/06 , F42C14/06 , F42C15/40
摘要： PURPOSE:To enable optimum setting in delaying time of detonation by arranging a speed calculating circuit for projecting a flying speed of a shell and a delay time calculating circuit to set a required sec. for delaying time of detonation from a projected speed. CONSTITUTION:As a shell is falling, a speed of the shell is calculated with a speed calculating circuit 9 from a voltage proportional to a speed of the shell obtained from a dynamos 2. Then, sec. taud for delaying time is calculated with a delay time calculating circuit 10 using the speed thus calculated. The time for delaying time obtained with the delay time calculating circuit 10 is inputted into a comparison judging circuit 11 to cause a detonate in sec. for delaying time after the landing of the shell.

7. 发明专利

JPH02130400A ELECTRONIC TIME PRIMER 失效
公开(公告)号：JPH02130400A
公开(公告)日：1990-05-18
申请号：JP28428688
申请日：1988-11-09
申请人： SHARP KK
发明人： MIZOGUCHI TAKATOSHI , KUZUMOTO TAKATOSHI
IPC分类号： F42C11/06
摘要： PURPOSE:To shorten a time until the time actuation of a timer is started by a constitution wherein the time of the timer, operated by dividing a counted time necessary for inputting a predetermined number of pulses of an input pulse signal by the predetermined number of pulse and multiplying the period of the operated input pulse signal by the set value of a timer time stage setting means. CONSTITUTION:An integrated circuit 1 inputs input pulse signals from input terminals 2, 2 through a diode array 8 and processes them based on the set value of a jumper switch 9 to output an igniting output to the base terminal of a transistor 5. The transistor 5 conducts a circuit consisting of a capacitor 4 and output terminals 6, 6. Then, the current from the capacitor 4 is conducted through an igniting heater 7 through the output terminals 6, 6 whereby igniting actuation may be effected.

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