Stable back rest
US4908891A · kind A · utility
13Cited by
4References
7Claims
0Family size
Inventor
Key dates
| Filing date | Sep 26, 1988 |
| Grant date | Mar 20, 1990 |
| Priority date | — |
| Expiry date | Sep 26, 2008 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47C1/146
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
In accordance with an illustration embodiment of the invention, a stable, portable back rest includes front and rear panels hinged together and set up in an inverted Vee, the front panel having an opening in its lower section which defines a horizontal edge, the end portion of a beach towel being inserted through the opening and wrapped more than one full turn around the lower section. When the user sits on the towel and leans back against the front panel, forces are applied at such edge while resist collapse and overturning of the panels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.