Force limiting weld head
US4940875A · kind A · utility
4Cited by
12References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 22, 1989 |
| Grant date | Jul 10, 1990 |
| Priority date | — |
| Expiry date | Feb 22, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K11/31
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A force limiting weld head (11) which includes a supporting structure (13), a pressure barrel (15) and an output member (17) mounted for movement on the supporting structure, a fixed electrode (19) mounted on the supporting structure, a movable electrode (21) driven by the output member, a coupling (23) for drivingly coupling the pressure barrel and the output member. The coupling includes a variable-volume chamber (89) and a piston (77) responsive to overtravel for varying the volume of the chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.