Sleigh having an improved inflatable body
US4206933A · kind A · utility
Inventor
Key dates
| Filing date | Jul 24, 1978 |
| Grant date | Jun 10, 1980 |
| Priority date | — |
| Expiry date | Jul 24, 1998 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62B15/006
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A sleigh having an inflatable body which is wedge-shaped at its forward portion and parallel-sided at its rear portion, the body being subdivided into three inflatable compartments by two spaced longitudinally extending interior webs which slant outwardly relative to one another in their downward directions. The forward ends of the upper edges of the webs are slightly higher than their rear ends. The upper surfaces of the two outer compartments bulge upwardly to a greater extent than the upper surface of the center compartment. Guide foils having longitudinally extending grooves are disposed below the three compartments at the rear end of the body, the foils associated with the outer two compartments being displaced inwardly relative to their respective compartment axes in the unloaded condition of the sleigh.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.