Material handling apparatus
US8893455B2 · kind B2 · utility
0Cited by
28References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 19, 2011 |
| Grant date | Nov 25, 2014 |
| Priority date | — |
| Expiry date | Nov 12, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65G69/183
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
The invention relates to apparatus 1 for releasably securing the lid 2 of a receptacle 3 for removal or replacement of the lid, the apparatus 1 comprising means 6 defining first and second vacuum chambers 5,7, the second vacuum chamber 7 being adapted to contact and secure a lid 2 when a pressure drop occurs in said second chamber 7, the arrangement being such that creating of a vacuum in the first chamber 5 acts on the defining means 6 to create a pressure drop in the second chamber 7 without fluid flow between the chambers, the pressure drop being sufficient to secure the lid 2 for removal of the lid from the receptacle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.