Expandable structure having an improved expansion chamber
US5658032A · kind A · utility
Inventor
Key dates
| Filing date | Oct 17, 1995 |
| Grant date | Aug 19, 1997 |
| Priority date | — |
| Expiry date | Oct 17, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60P3/34
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A structure having an interior living space, an optional cab for operation of a propulsion system, and at least one expanding chamber. Each chamber is a box with one open wall. The structure may be a towable trailer, a recreational vehicle body on a truck chassis, or a motorized recreational vehicle, or a trailer with a support system instead of wheels for stationary use, or a fixed building on a foundation. The structure's living space is open at the interface with a respective expansion chamber. For use, a stowed chamber moves from within the structure, between its outer walls, to an expanded position external of the structure. A pair of cantilevered deployable rails are moved, prior in time to a chamber exodus, outwardly from beneath the structure to support the chamber to be expanded.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.