Clamping arm for envelope turner
US5131643A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 1, 1991 |
| Grant date | Jul 21, 1992 |
| Priority date | — |
| Expiry date | Aug 1, 2011 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H5/068
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Apparatus for turning an envelope, including: a housing; a transport deck secured to the housing for transporting an envelope from an upstream location to a downstream location, the deck including a device for moving the envelope; a vertically extending spindle located beneath the deck, the spindle being rotatable and reciprocable and having an upper end capable of extending above the transport deck; a device for raising and rotating the spindle; and a clamping arm assembly rotatably mounted to the housing situated above the transport deck, the clamping arm assembly having a device for applying a light, downward bias on the envelope against the upper end of the spindle, and a device for applying additional pressure to the envelope after the spindle is raised.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.