Apparatus for performing plural operations on a common workpiece
US4756238A · kind A · utility
3Cited by
2References
7Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Dec 12, 1986 |
| Grant date | Jul 12, 1988 |
| Priority date | — |
| Expiry date | Dec 12, 2006 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K11/0053
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An actuator including a first cylinder chamber and a second cylinder chamber defined as separate entities in a cylinder for receiving a first piston and a second piston therein respectively. One of the first and second cylinder chambers is connected to an oil pressure source and the other cylinder chamber is connected to an air pressure source. A piston rod of the first piston and a piston rod of the second piston which move in relative sliding movement have at their forward ends separate operating portions for performing operations on a common workpiece.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.