GB817542A - Improvements in or relating to exploders - Google Patents
Improvements in or relating to explodersInfo
- Publication number
- GB817542A GB817542A GB975756A GB975756A GB817542A GB 817542 A GB817542 A GB 817542A GB 975756 A GB975756 A GB 975756A GB 975756 A GB975756 A GB 975756A GB 817542 A GB817542 A GB 817542A
- Authority
- GB
- United Kingdom
- Prior art keywords
- capacitors
- circuit
- inductors
- detonator
- exploders
- 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
Links
- 239000003990 capacitor Substances 0.000 abstract 4
- 238000007599 discharging Methods 0.000 abstract 1
- 238000004146 energy storage Methods 0.000 abstract 1
- 238000010304 firing Methods 0.000 abstract 1
- 230000001939 inductive effect Effects 0.000 abstract 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Air Bags (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
817,542. Charging and discharging capacitors. NATIONAL RESEARCH DEVELOPMENT CORPORATION. June 4, 1957 [March 28, 1956; Dec. 7, 1956], Nos. 9757/56 and 37442/56. Class 38 (4). A circuit for limiting the fault energy of a capacitive energy storage system for electrically firing a detonator, comprises a number of capacitors C1-Cn connected together by inductors L1- Ln-1. The capacitors and inductors nearer to the detonator circuit 3a may be smaller than those adjacent to the D.C. source 1. A non- inductive resistor may supplant inductor Ln-1 and additional resistors R26-Rn in series with the end capacitors may be used to further limit the discharge current. A test circuit 3b may be switched across the detonators by means of switch 3c.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB817542A true GB817542A (en) | 1960-01-15 |
Family
ID=1629961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB975756A Expired GB817542A (en) | 1956-03-28 | Improvements in or relating to exploders |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB817542A (en) |
-
1956
- 1956-03-28 GB GB975756A patent/GB817542A/en not_active Expired
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