All level cart with swivel casters
US3980334A · kind A · utility
26Cited by
5References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 31, 1975 |
| Grant date | Sep 14, 1976 |
| Priority date | — |
| Expiry date | Jan 31, 1995 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62B5/0003
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An ambulance cart having a bed from which four legs depend. The legs are adapted to swing away from each other to lower the level of the cart. An extensible frame is mounted at the lower ends of the legs, and casters adapted to swivel about vertical axes are attached to the frame so that as the legs are spread apart the frame enables the casters to maintain the vertical orientation of their swivel axes. Both forward and rearward legs are also adapted to swing rearwardly to enable the cart to be thrust into a vehicle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.