Wrapped pile weatherstripping and methods of making same
US7883594B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 15, 2003 |
| Grant date | Feb 8, 2011 |
| Priority date | — |
| Expiry date | May 30, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B2310/028
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Pile weatherstripping, which is clad with a wrapping of a film (14, 25, 104, 216) of flexible material, has one or more rows (19, 27, 100, 102, 212, 214) of pile (10, 24, 105, 233) on a backing (12, 28, 106, 218) in side-by-side relationship. The wrapping film material conforms to the outside surface of the row (19, 27, 100, 102, 214) of pile so as to define a bulb or bulbs which are completely filled with pile. Single row (19, 27) pile weatherstripping is made by wrapping the pile (10, 24) with the film material (14, 25) after first ultrasonically welding the film material along one edge thereof to the backing (12, 28) under the pile. Then, the film material (14, 25) may be bent around the pile as it moves through a guide (88). The film material (14, 25) is then attached along the opposite edge to the backing thereof so as to completely enclose and clad the row (19, 27) of weatherstripping. The film material may be wrapped around one row (214) of two adjacent rows (212, 214) of pile (233) and attached to the backing (218), leaving the other row (212) unclad. The film material (104) may be wrapped separately around adjacent rows and attached to the backing (106) to provide two clad…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.