Pile weatherstrip
US5384976A · kind A · utility
2Cited by
13References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 5, 1993 |
| Grant date | Jan 31, 1995 |
| Priority date | — |
| Expiry date | Apr 5, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/23979
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A pile weatherstrip has an elongate base strip carrying a pile of thermoplastic fibres. A zone is formed adjacent the base of the fibres fused together and compressed to reduce their width. This provides a comparatively smooth and narrow zone that does not snag on the flanges of a carrier as the pile weatherstrip is inserted into the carrier. The zone can be produced by passing the weatherstrip through a nip formed by heated rollers. In an alternative embodiment, the fibres are fused together for their whole height. This has the additional advantage of providing an air-impervious barrier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.