Welding gun cylinder with control valve
US6375156B2 · kind B2 · utility
1Cited by
4References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 28, 2001 |
| Grant date | Apr 23, 2002 |
| Priority date | — |
| Expiry date | Jun 28, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86895
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A weld gun cylinder and piston assembly includes a common center end wall interposed between two cylinders. The common center end wall functions as a manifold with bores extending therethrough. The manifold houses two spool valves. The spool valves control the passage of pneumatic pressure through passages of the manifold to and from the cylinders to extend and retract two piston rods for controlling jaws and a weld tip on a robotic arm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.