Waterblown foam base
US5317773A · kind A · utility
56Cited by
8References
7Claims
0Family size
Inventor
Key dates
| Filing date | Nov 13, 1992 |
| Grant date | Jun 7, 1994 |
| Priority date | — |
| Expiry date | Nov 13, 2012 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61G7/05715
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A waterblown urethane foam base having a flat seat portion and a raised front portion with angularly directed valleys and a raised pommel. The area beneath the front portion is made more flexible and reduced in weight and is defined by a series of hollowed out areas separated by ribs which support the top surface of the front portion along with the front and side walls of the front portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.