Self erecting zipper lift
US8069954B2 · kind B2 · utility
16Cited by
11References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 25, 2008 |
| Grant date | Dec 6, 2011 |
| Priority date | — |
| Expiry date | Nov 27, 2028 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66F13/005
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A zipper style lift that coils into a box for storage, but extends to form a rigid, self erecting lift part. The lift stores itself in a housing when retracted, by retracting chain parts into a spiral form.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.