Mobile coater
US4495890A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 13, 1983 |
| Grant date | Jan 29, 1985 |
| Priority date | — |
| Expiry date | Jul 13, 2003 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H5/003
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A portable coating apparatus is described for use with a paper converting machine such as a corrugated paperboard double-backer. Rotational power to drive gravure, transfer and smoothing rolls is extracted from the converting machine supply web by an S-wrap through the loaded nip between a pair of drive rolls. A low-powered auxiliary drive motor is automatically engaged to keep the gravure and transfer rolls conditioned with coating during brief intervals of web feed cessation. The entire unit is constructed on a space frame that is supported by caster wheels to facilitate movement to and from an appropriate converting machine position which may be between the reeled web supply unwind stand and a web preheating drum station leading into a double-backing machine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.