Electric igniter
US4297947A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 15, 1979 |
| Grant date | Nov 3, 1981 |
| Priority date | — |
| Expiry date | May 15, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49083
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An ignition system for the firing of a plurality of electrically actuable igniters (16) and methods for construction and use of the assembly. The ignition leading wire (17) of each electrically actuable igniter (16) is formed from a continuous length of insulated wire connecting its two electrical connection terminals. The leading wire is looped around a transformer core (14) having a movable portion (15) that is opened to admit the loop. A firing cable (12) coupled to a source of electrical firing energy (11) is also looped around the transformer core completing the formation of a transformer for coupling electrical firing energy from the source to each of the igniters to be fired. A plurality of transformer cores can be coupled to a single firing energy source by looping a continuous wire from the source, through each transformer and then back to the source, thereby electromagnetically coupling firing energy to each transformer. In an alternate configuration, the igniter leading wires (17) are each loop coupled to a toroidal core (20) which is in turn electromagnetically coupled to a transformer (19 ) by a single loop of insulated wire looped through the core of the transformer a…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.