Method and apparatus for welding polymer fabrics
OwnerMichael John Radley Younginventor
Life of this patent
Estimating the term…
Abstract
The apparatus is adapted to weld ultrasonically two or more layers of fabric 14. The fabrics 14 may be a woven or non-woven fabric of nylon, polyethylene or other polymeric material. It comprises two opposed ultrasonically vibratable horns (1, 1a) so spaced one from another that the layers of fabric (3) may be passed between them. At least one, optionally both, of the two horns (1, 1a) is vibratable in axial mode.
Claims19
An apparatus for welding ultrasonically two or more layers of fabric comprising two opposed ultrasonically vibratable horns so spaced one from another that the layers of fabric may be passed between them.
An apparatus as claimed in any one of the preceding claims, further comprising a source of air or other cooling fluid directed generally toward a zone in which welding takes place.
A method of welding ultrasonically two or more layers of fabric comprising the steps of providing two opposed ultrasonically vibratable horns spaced one from another, and passing the layers of fabric between them whilst vibrating ultrasonically the horns.
Dependencies are inferred from the claim text.