Seamer with improved back-up assembly
US5450996A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 3, 1994 |
| Grant date | Sep 19, 1995 |
| Priority date | — |
| Expiry date | Feb 3, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K37/06
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
This seamer (10) with back-up assembly (50) includes a first table (30) supporting one of the workpieces W1, a second table (32) supporting the other of the workpieces W2, fingers (40, 42) clamping the workpieces to the table, and an improved back-up assembly (50) disposed between the first and second table (30, 32). The back-up assembly (50) includes an elongate back-up bar (52), a holder (54) carrying the back-up bar (52), a support (70) disposed in spaced relation from the holder (54), inflatable hoses (80, 82) operatively disposed between the holder (54) and the support (70), and a control system (88) inflating the hoses to adjust the elevation of the back-up bar (52) relative to the workpieces W1 and W2. The assembly (50) is slidingly removable as a unit to facilitate removal of the back-up bar (52).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.