Multi-purpose carriage
US5433459A · kind A · utility
Inventor
Key dates
| Filing date | Dec 8, 1992 |
| Grant date | Jul 18, 1995 |
| Priority date | — |
| Expiry date | Dec 8, 2012 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47C13/00
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
This invention relates to a multi-purpose carriage and in particular to one including an upper frame provided with two upper supports each having a toothed member at the lower end, two transverse rods mounted between the two upper supports, each of the upper supports having a fixing block, a slider and a guiding rack and being provided with a telescopic rod, each slider having a positioning device for mounting on the guiding rack, a head rest rod pivotally connected with the upper end of the upper supports and having an adjustable rest, a lower frame provided with two lower supports each having at the upper end a toothed member engaged with the toothed member of the upper frame, and a compound rack engaged with the lower supports of the lower frame and composed of two telescopic rods each connected with a L-shaped rod, the L-shaped rod being provided with a plurality of wheel assemblies, whereby the carriage may be used as a seat, a wheeled chair, a bed, and a baby carriage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.