Electrically actuable ignition assembly
US4451867A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 7, 1982 |
| Grant date | May 29, 1984 |
| Priority date | — |
| Expiry date | Sep 7, 2002 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF41A19/63
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An electrically actuable ignition assembly comprising an electric ignition element having insulated electrical leading wires connected by means of conducting metal contact elements to the ends of a secondary winding of insulated wire on a transformer ring core. The transformer core and contacts are preferably encased in a synthetic plastics case. The assembly is for use in blasting operations in which multi-shot rounds are fired from an a.c. supply by electromagnetic coupling of the supply with the secondary winding by means of a single primary wire threaded through the ring cores of a plurality of assemblies. The use of the metal contact elements eliminates the previously used soldered joints between the ignition element leading wires and the transformer secondary winding.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.