Jack with elevatable platform
US6601430B2 · kind B2 · utility
16Cited by
15References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 9, 2001 |
| Grant date | Aug 5, 2003 |
| Priority date | — |
| Expiry date | Oct 9, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S72/705
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A lifting platform with a scissor type jack. The jack includes a plurality of inter-connected struts pivotally connected to a base forming a double X strut arrangement. A power actuator is connected to at least one strut in each X to effect extension and retraction of the jack. A safety latch is provided to prevent accidental retraction of the jack from an extended position should the power actuator fail to hold the jack in the elevated position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.