Blasting apparatus, blasting method and retainer member used for the blasting method
US6431074B1 · kind B1 · utility
0Cited by
15References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 9, 2001 |
| Grant date | Aug 13, 2002 |
| Priority date | — |
| Expiry date | Jul 9, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF42D3/00
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Supplying a predetermined amount of electric energy to a fine metal wire 4 in a short time causes the fine metal wire 4 to melt and evaporate. Following this phenomenon, a blasting substance 10 expands in volume, so that the evaporative expansion force resulting from the melting evaporation of the fine metal wire 4 is transmitted to and blasts a to-be-blasted object 5.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.