Fluid levitating caster integrating load lifting device
US7228594B2 · kind B2 · utility
5Cited by
10References
4Claims
0Family size
Inventor
Key dates
| Filing date | Mar 28, 2005 |
| Grant date | Jun 12, 2007 |
| Priority date | — |
| Expiry date | Jul 16, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60B33/0018
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A fluid levitating caster lifts a heavy load “(17)” off a floor “(18)” with near friction-less-ness for transport has integrated a load lifting device. This extra rise height “(ER)” lifting feature accommodates moving loads “(17)” which have flexible-sagging frames, over uneven floors “(18)”, and which have frames that are not parallel to floor “(18)”. An inflatable bellows “(22)” design of the load lifting device receives its pressurization from fluid levitating caster, and additionally serves as a dampening reservoir to reduce hopping-pressure surges inherent in fluid levitating casters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.