Preformed enclosure for a cushion
US6528002B1 · kind B1 · utility
Assignees
Inventors
Key dates
| Filing date | Jan 31, 2000 |
| Grant date | Mar 4, 2003 |
| Priority date | — |
| Expiry date | Jan 31, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/481
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A seating cushion for use as a seat bottom, back, headrest, arm or the like in a seating product. The seating cushion comprises an outer enclosure formed of a relatively durable and inert polymer and a resilient inner pad fitted within the enclosure. The outer enclosure is preformed of a three dimensional unitary polymeric wall configured to receive the inner pad so as to cover the top, sides and at least a portion of the bottom of the pad. The preformed enclosure may be used in place of conventional upholstery in most seating products. The wall of the enclosure is generally thicker than conventional upholstery material so as to provide durability and structure, but is sufficiently thin and flexible to enable the user to feel the comfort of the pad disposed within the enclosure. The enclosure is preferably formed of polyurethane molded in a two-sided mold to provide a three dimensional enclosure of controlled thickness.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.