[특허]Timing apparatus

[미국특허] Timing apparatus 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F23Q-021/00
출원번호	US-0587914 (1990-09-25)
우선권정보	ZA-0007389 (1989-09-28)
발명자 / 주소	Marsh Michael J. C. (Johannesburg ZAX) Atkins Raymond C. (Pretoria ZAX) Hodson Trevor M. (Randburg ZAX)
출원인 / 주소	CSIR (Transvaal ZAX 03)
인용정보	피인용 횟수 : 27 인용 특허 : 0

초록 ▼

The invention relates to a blasting apparatus for activating a plurality of electrical detonators after predetermined time delays. The blasting apparatus includes a plurality of remote electrical delay devices. Each device is linked to a detonator, and is arranged to be serially programmed with a timing signal, which originates from the central control unit and which determines the time delay. A bidirectional signal harness, having ends which terminate at I/O ports in the control unit, serially links the delay devices to the control unit. In the event of a fault of discontinuity occurring in the harness prior to programming of the delay devices, the discontinuity is detected and the direction of programming along the bidirectional harness is reversed so that those delay devices which, due to the break, cannot be programmed in the initial direction, are programmed with timing signals travelling along the signal line in the opposite direction. The invention extends to a method of activating a plurality of electrical detonators, as well as to the individual delay devices forming part of the blasting apparatus.

대표청구항 ▼

Apparatus for activating a plurality of electrical loads after predetermined time delays comprising: a) a central control unit for generating timing signals; b) a plurality of remote electrical delay devices, each delay device being associated with a corresponding electrical load and arranged to be serially programmed by a timing signal originating from the central control unit, the timing signal determining the time delay; c) at least one bidirectional timing signal line for allowing the timing signals to be transmitted in series from the central control unit to each remote electrical delay device in either of two alternative directions; d) sensing means for sensing a fault in the timing signal line; and e) direction selection means for selecting the direction of transmission of the timing signals along the bidirectional timing signal line, the direction selection means in use selecting a direction of transmission opposite to the initial direction of transmission of the timing signals from the control unit in the event of said fault being sensed in the timing signal line, for programming those delay devices which cannot be programmed in the initial direction.

이 특허를 인용한 특허 (27) 인용/피인용 타임라인 분석

Jalbout, Bassam D.; Wong, Brian, Control of light intensity using pulses of a fixed duration and frequency.
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Jennings, III,David T., Current modulation-based communication for slave device.
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Turner Christopher Gordon Gervase,ZAX ; Kruger Johan Dawid,ZAX, Delayed reset mode model for electronic identification systems.
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Fisher, Delmer D.; Plummer, Brady A.; Plummer, Robert W., Detonation control system.
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Teowee,Gimtong; Jennings, III,David T., Dynamic baselining in current modulation-based communication.
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Teowee,Gimtong; Jennings, III,David T., Dynamic baselining in current modulation-based communication.
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Teowee, Gimtong; Kouznetsov, Alex A., Dynamically-and continuously-variable rate, asynchronous data transfer.
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Shann Peter Christian,GBX, Electrical distribution system.
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Teowee, Gimtong; Kouznetsov, Alex A., Electronic blasting system having a pre-fire countdown with multiple fire commands.
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Johan Dawid Kruger ZA; Christopher Gordon Gervase Turner ZA, Electronic identification system.
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Turner, Christopher Gordon Gervase; Kruger, Johan Dawid, Electronic identification system and method with source authenticity.
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Turner, Christopher Gordon Gervase; Kruger, Johan Dawid, Electronic identification system and method with source authenticity.
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Turner,Christopher Gordon Gervase; Kruger,Johan Dawid, Electronic identification system and method with source authenticity.
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Turner, Christopher Gordon Gervase; Kruger, Johan Dawid, Electronic identification system and method with source authenticity verification.
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Teowee, Gimtong, Enhanced method, device, and system for identifying an unknown or unmarked slave device such as in an electronic blasting system.
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Van Eeden Hendrik Lodewyk,ZAX, Free running RF identification system with increasing average inter transmission intervals.
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Proctor David Edwin,ZAX ; Turner Christopher Gordon Gervase,ZAX, High impedance transponder with improved backscatter modulator for electronic identification system.
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David Edwin Proctor ZA; Christopher Gordon Gervase Turner ZA; Andries Petrus Cronje Fourie ZA, Hybrid antenna arrangement for use with electronic identification systems.
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Hohberger, Clive P.; Tsirline, Boris Y., Method and apparatus for article authentication.
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Hohberger, Clive P.; Tsirline, Boris Y., Method and apparatus for article authentication.
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Teowee, Gimtong; Kouznetsov, Alex A., Method for detecting an unknown or unmarked slave device such as in an electronic blasting system.
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Hummel, Dirk; Lownds, Charles Michael, Method of communication at a blast site, and corresponding blasting apparatus.
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Jalbout, Bassam D.; Wong, Brian, Methods and systems for controlling electrical power to DC loads.
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Nelson, Steven D.; Diamond, Michael N., Networked electronic ordnance system.
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Kanth,Shashi; Kouznetsov,Alex A., Pre-fire countdown in an electronic detonator and electronic blasting system.
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Eddy, Christopher L.; Singhal, Rajeev N., System for the initiation of rounds of individually delayed detonators.
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Jalbout, Bassam D.; Wong, Brian, Traction system for electrically powered vehicles.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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[미국특허] Timing apparatus 원문보기