CA1326281C - Delay circuit for use in electric blasting system - Google Patents
Delay circuit for use in electric blasting systemInfo
- Publication number
- CA1326281C CA1326281C CA000591104A CA591104A CA1326281C CA 1326281 C CA1326281 C CA 1326281C CA 000591104 A CA000591104 A CA 000591104A CA 591104 A CA591104 A CA 591104A CA 1326281 C CA1326281 C CA 1326281C
- Authority
- CA
- Canada
- Prior art keywords
- circuit
- resistor
- actuation
- electric
- transistor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000005422 blasting Methods 0.000 title claims abstract description 15
- 239000003990 capacitor Substances 0.000 claims abstract description 31
- 239000004020 conductor Substances 0.000 claims description 27
- 239000010453 quartz Substances 0.000 claims description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 10
- 239000000919 ceramic Substances 0.000 claims description 8
- 238000007599 discharging Methods 0.000 claims description 5
- 230000007423 decrease Effects 0.000 claims description 3
- 230000000977 initiatory effect Effects 0.000 claims description 3
- 239000002360 explosive Substances 0.000 description 24
- 238000004880 explosion Methods 0.000 description 12
- 238000010586 diagram Methods 0.000 description 6
- 238000010276 construction Methods 0.000 description 3
- 239000013078 crystal Substances 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
- F42D1/04—Arrangements for ignition
- F42D1/045—Arrangements for electric ignition
- F42D1/05—Electric circuits for blasting
- F42D1/055—Electric circuits for blasting specially adapted for firing multiple charges with a time delay
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Pulse Circuits (AREA)
- Measurement Of Predetermined Time Intervals (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63-31,869 | 1988-02-16 | ||
| JP63031869A JP2572797B2 (ja) | 1988-02-16 | 1988-02-16 | 電気発破用遅延回路 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1326281C true CA1326281C (en) | 1994-01-18 |
Family
ID=12343050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000591104A Expired - Fee Related CA1326281C (en) | 1988-02-16 | 1989-02-15 | Delay circuit for use in electric blasting system |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US4984519A (en, 2012) |
| JP (1) | JP2572797B2 (en, 2012) |
| CA (1) | CA1326281C (en, 2012) |
| DE (1) | DE3904563A1 (en, 2012) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5460093A (en) * | 1993-08-02 | 1995-10-24 | Thiokol Corporation | Programmable electronic time delay initiator |
| JP3585526B2 (ja) * | 1994-05-31 | 2004-11-04 | 旭化成ケミカルズ株式会社 | 電子式遅延雷管 |
| GB9423314D0 (en) * | 1994-11-18 | 1995-01-11 | Explosive Dev Ltd | Electrical distribution system |
| US5587550A (en) * | 1995-03-23 | 1996-12-24 | Quantic Industries, Inc. | Internally timed, multi-output impulse cartridge |
| CA2227780C (en) * | 1995-07-26 | 2001-05-22 | Kazuhiro Kurogi | Electronic delay detonator |
| DE19626074C1 (de) * | 1996-06-28 | 1998-01-22 | Buck Chem Tech Werke | Zündsystem zum verzögerten Zünden einer Munition |
| US5912428A (en) * | 1997-06-19 | 1999-06-15 | The Ensign-Bickford Company | Electronic circuitry for timing and delay circuits |
| US6082267A (en) * | 1997-10-03 | 2000-07-04 | Bulova Technologies, L.L.C. | Electronic, out-of-line safety fuze for munitions such as hand grenades |
| US5942714A (en) * | 1997-12-31 | 1999-08-24 | Aai Corporation | Accurate ultra low power fuze electronics |
| JPH11325799A (ja) * | 1998-05-19 | 1999-11-26 | Asahi Chem Ind Co Ltd | 電子式遅延雷管 |
| US7752970B2 (en) * | 2000-09-06 | 2010-07-13 | Ps/Emc West, Llc | Networked electronic ordnance system |
| US8710805B2 (en) * | 2011-09-19 | 2014-04-29 | Westinghouse Electric Company, Llc | Squib control circuit |
| KR101341396B1 (ko) | 2011-12-12 | 2013-12-13 | 국방과학연구소 | 전자 시한 신관 |
| CA2861115A1 (en) * | 2012-01-13 | 2013-10-17 | Los Alamos National Security, Llc | System for fracturing an underground geologic formation |
| DE202012013333U1 (de) | 2012-06-20 | 2016-06-02 | Thomas Thale | Lüftungskanalanordnung |
| CN104485637B (zh) * | 2014-12-31 | 2018-03-16 | 深圳市盛德兰电气有限公司 | 一种失压延时器 |
| CN109405679B (zh) * | 2018-12-16 | 2022-07-12 | 山西汾西重工有限责任公司 | 自保护式火工品点火方法 |
| CN110749254B (zh) * | 2019-10-16 | 2022-04-22 | 中国兵器工业集团第二一四研究所苏州研发中心 | 一种短延时触发点火电路 |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3862602A (en) * | 1970-05-14 | 1975-01-28 | Us Navy | Contact delay and self-destruct circuit |
| HU166283B (en, 2012) * | 1971-12-08 | 1975-02-28 | ||
| JPS5443454A (en) * | 1977-09-13 | 1979-04-06 | Asahi Chemical Ind | Electric delay unit |
| AU518851B2 (en) * | 1978-04-26 | 1981-10-22 | Aeci Limited | Explosives |
| JPS5626228A (en) * | 1979-08-09 | 1981-03-13 | Mitsubishi Electric Corp | Monitor device for rotating shaft |
| US4445435A (en) * | 1980-05-05 | 1984-05-01 | Atlas Powder Company | Electronic delay blasting circuit |
| JPS57142498A (en) * | 1981-02-27 | 1982-09-03 | Asahi Chemical Ind | Delayed electric fuse |
| JPS5883200A (ja) * | 1981-11-11 | 1983-05-18 | 旭化成株式会社 | 電子式遅延電気雷管 |
| US4586437A (en) * | 1984-04-18 | 1986-05-06 | Asahi Kasei Kogyo Kabushiki Kaisha | Electronic delay detonator |
| GB2160954A (en) * | 1984-05-23 | 1986-01-02 | Plessey Co Plc | Mortars |
| US4572288A (en) * | 1984-06-15 | 1986-02-25 | J. C. Kinley Co. | Time-delayed ignition system for a down-hole explosive tool |
| US4712477A (en) * | 1985-06-10 | 1987-12-15 | Asahi Kasei Kogyo Kabushiki Kaisha | Electronic delay detonator |
| US4825765A (en) * | 1986-09-25 | 1989-05-02 | Nippon Oil And Fats Co., Ltd. | Delay circuit for electric blasting, detonating primer having delay circuit and system for electrically blasting detonating primers |
-
1988
- 1988-02-16 JP JP63031869A patent/JP2572797B2/ja not_active Expired - Lifetime
-
1989
- 1989-02-13 US US07/309,157 patent/US4984519A/en not_active Expired - Fee Related
- 1989-02-15 CA CA000591104A patent/CA1326281C/en not_active Expired - Fee Related
- 1989-02-15 DE DE3904563A patent/DE3904563A1/de active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| DE3904563C2 (en, 2012) | 1990-03-22 |
| JP2572797B2 (ja) | 1997-01-16 |
| JPH01208700A (ja) | 1989-08-22 |
| DE3904563A1 (de) | 1989-09-14 |
| US4984519A (en) | 1991-01-15 |
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| CA1326281C (en) | Delay circuit for use in electric blasting system | |
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| SU1171989A1 (ru) | Устройство задержки | |
| JPH0814474B2 (ja) | 電気発破用遅延回路 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKLA | Lapsed |