Vacuum lifter
US11420830B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 10, 2018 |
| Grant date | Aug 23, 2022 |
| Priority date | — |
| Expiry date | Nov 12, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2406/362
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A vacuum lifter apparatus for lifting sheet material articles, comprises an upper chassis joined to a substantially planar lower suction plate and an airflow suction system for conveying vacuum air pressure to the suction plate. The suction plate comprises a plurality of suction plate modules, each comprising a housing with a substantially hollow interior and each of the housings being located laterally adjacent at least one other of the housings. Each of the housings comprises a lower plate, an upper plate and at least one side plate, each housing being affixed to the laterally adjacent housing along a seam between adjoining pairs of side plates. The upper plates each comprise at least one opening and the lower plates are each perforated with a plurality of orifices through which, in use, air is drawn along airflow paths through the interior and out of the opening by the airflow suction system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.