Bag mouth sealing device
US6539689B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | May 8, 2001 |
| Grant date | Apr 1, 2003 |
| Priority date | — |
| Expiry date | Jul 24, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66C19/002
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
Means to sequentially transfer packaged bodies (30) carried by a conveyor (32) onto surface plates (40) rotated at equal intervals along a circular route (41) and vacuum-package the packaged bodies (30) in a vacuum chamber formed with cover materials covering the surface plates (40), wherein the feed pitch of each surface plate (40) is input into a controller (58) with pulses from an encoder (56), and a pitch between the front end sides of packaged matter (18) inside the packaged bodies is detected by an optical sensor (59) and input to the controller (58) so as to control the speed of an adjustment conveyor (35) according to a pitch displacement of the packaged matter (18) relative to the pitch between the surface plates (40).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.