Living hinge creation through extrusion of a thermoformable plastic sheet
US9486112B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 2, 2011 |
| Grant date | Nov 8, 2016 |
| Priority date | — |
| Expiry date | Feb 12, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49826
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A bathing vessel is made of a sheet of layered materials, which include a first layer of polyurethane material, a second layer of polyurethane material attached to the first layer, a third layer of acrylonitrile butadiene styrene (ABS) material attached to the second layer, and a fourth layer of acrylic material attached to the third layer. A first narrowed portion about which the sheet bends is provided. The bend defines a first wall and a second wall in the sheet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.