Cart having extensible auxiliary wheels
US4192541A · kind A · utility
54Cited by
6References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 8, 1978 |
| Grant date | Mar 11, 1980 |
| Priority date | — |
| Expiry date | Feb 8, 1998 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62B2205/00
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A cart having a frame, four depending legs adapted to swing rearwardly to a collapsed position, releasable means bracing said legs, an operator for actuating said releasable means, a platform mounted on said frame adapted to move between an extended and a retracted position, auxiliary wheels on the forward end of said platform, and a lock for maintaining said platform in either of its positions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.