Portable electrical discharge metalworking machine
US3939321A · kind A · utility
24Cited by
10References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 19, 1973 |
| Grant date | Feb 17, 1976 |
| Priority date | — |
| Expiry date | Nov 19, 1993 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23H9/14
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A compact, portable electrical discharge metalworking machine for off-hand use and general applicability. The invention is a lightweight, versatile gun type tool which has air and water cooling of electrode and work, a vibrating electrode to facilitate its motion inside the work, a simple, automatic, spring driven, all orientation electrode feed, and uses low voltage, high amperage electricity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.