Anatomical, pressure-evenizing mattress overlay and associated methodology
US8510885B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Apr 2, 2010 |
| Grant date | Aug 20, 2013 |
| Priority date | — |
| Expiry date | Dec 18, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47C27/15
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A method and structure for furnishing pressure-evenized, dynamic-reaction anatomical support. The method includes (a) supporting the anatomy with a 100% open cell viscoelastic foam, and (b) within the foam, reacting to both static and dynamic, anatomically-produced foam indentations to expand and contract cell-openness size, whereby deeper/sharper indentations result in greater-size cell-openness. Such reacting includes laterally stretching and flowing regions of the foam adjacent such an indentation The overlay structure features (1) a dynamic-response core expanse formed of a 100% open-cell, compressible and flowable, polyurethane, viscoelastic foam possessing a compressed, relaxed-state volume, and (2) an elastomeric, moisture- and gas-flow-managing coating, load-transmissively, bonded to the entirety of the core expanse's outside surface to function as a dynamically-responsive unit with the expanse. The coating possesses a relaxed-state, prestressed tension condition which is responsible for the expanse's compressed condition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.