Lift mechanism with platform locking device
US4118011A · kind A · utility
0Cited by
1References
3Claims
0Family size
Inventor
Key dates
| Filing date | Apr 5, 1977 |
| Grant date | Oct 3, 1978 |
| Priority date | — |
| Expiry date | Apr 5, 1997 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66F11/044
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A lift mechanism comprising a base, a lift arm pivoted to the base and a platform pivoted to the lifting arm includes a locking device operating between the lift arm and the platform to releasably lock these two components together if the platform deviates from a horizontal position thereby presenting further movement of the platform from the horizontal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.