Machine for welding a moving web of material by means of a movable welding tool
US4302276A · kind A · utility
9Cited by
5References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 28, 1980 |
| Grant date | Nov 24, 1981 |
| Priority date | — |
| Expiry date | May 28, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1741
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An apparatus for welding a web of material which is being moved in its longitudinal direction is disclosed. The apparatus comprises a movable welding tool which welds along a line of contact against the periphery of a rotatable counter-roller, and a drive means which imparts rotary movement to the counter-roller and moves the welding tool periodically into its welding position. The apparatus further comprises a means for superimposing on the counter-roller rotation an additional rotation such that the point of weld contact on the counter-roller is distributed equally around the periphery of said roller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.