Free-piston cutting machine
US6125834A · kind A · utility
20Cited by
8References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 25, 1999 |
| Grant date | Oct 3, 2000 |
| Priority date | — |
| Expiry date | Jan 25, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T83/8863
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A cutting machine includes a gun barrel for receiving a projectile. A compression tube is disposed in flow communication with the barrel and includes a piston therein. A reservoir is disposed in flow communication with the tube and receives a first gas under pressure. A second gas fills the compression tube on a front face of the piston. And, the pressurized first gas is discharged into the tube on a back face of the piston to accelerate the piston through the tube for compressing the second gas, and in turn launching the projectile through the barrel to impact a workpiece.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.