Seam having liquid proof threads stichably securing first and second liquid proof materials foldably enclosing a meltable adhesive polymer film and method of manufacture of same
US5003902A · kind A · utility
82Cited by
11References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 13, 1989 |
| Grant date | Apr 2, 1991 |
| Priority date | — |
| Expiry date | Oct 13, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T24/2505
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A liquid proof seam construction is provided. A double needle flat-felled seam is constructed having a melt adhesive polymer film disposed within the seam. The seam is then passed through a hot air/pressure device which melts the film and compresses the seam. This forms a liquid, e.g. waterproof, bond between adjacent layers of material and also fills up any area around the stitching formed by needle holes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.