Continuous nonwoven polyester fiber and fiberglass thread hybrid mat
US12123193B2 · kind B2 · utility
0Cited by
6References
43Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 20, 2020 |
| Grant date | Oct 22, 2024 |
| Priority date | — |
| Expiry date | May 24, 2042 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04D1/20
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Disclosed are methods and devices for forming a combined polyester and fiberglass mat, in which separate polyester and fiberglass layers can be formed or polyester filaments and fiberglass threads can be mixed together by a disperser to form a polyester and fiberglass web. The polyester filaments and the fiberglass threads can be dispersed by separate dispersers on a web forming belt to form separate layers of polyester filaments and fiberglass threads, or can be dispersed by a single disperser to at least, somewhat evenly disperse, the fiberglass threads and polyester filaments.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.