Cushion
US4944992A · kind A · utility
17Cited by
1References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 7, 1989 |
| Grant date | Jul 31, 1990 |
| Priority date | — |
| Expiry date | Mar 7, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/671
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
In a cushion which uses synthetic cotton formed of curled polyester fibers, the synthetic cotton is a mixture of first and second fibers having two different thicknesses. The fibers are three-dimensionally intertwined with air-passing space. The first fibers have the denier value of 20 or more, while the second fibers have the denier value of less than 20. The first and second fibers are mixed in the ratio of 0.5 to 2:1 by weight. These fibers of the synthetic cotton are bound at their intersections by means of a polyurethane binder such that the air-passing space is maintained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.