Igniter for exothermic torch rod
US7117796B1 · kind B1 · utility
8Cited by
3References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 29, 2005 |
| Grant date | Oct 10, 2006 |
| Priority date | — |
| Expiry date | Dec 29, 2025 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF42C19/10
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An igniter's housing is bored continuously there through to define, in succession, several bore regions. A firing pin, slidingly fit in the first bore region, terminates in a tip that protrudes into a primer-filled second bore region when the firing pin is fully seated in the first bore region. An air-filled third bore region follows the second bore region. An open-ended cup is fitted substantially in and sealed to the fourth bore region with the cup's closed end being structurally weakened at a portion thereof. A bored out slug of pyrotechnic material is fitted in the cup.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.