Silicone applicator with overflow control
US5075128A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 11, 1989 |
| Grant date | Dec 24, 1991 |
| Priority date | — |
| Expiry date | Aug 11, 2009 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H23/56
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Silicone application apparatus and method for applying a controlled amount of silicone emulsion to the surface of a moving web such as a continuous web in a printing press. The applicator comprises a silicone supply tank, a silicone emulsion applicator tray, a pump for pumping silicone emulsion from the supply tank to the applicator tray, and applicator rollers in contact with the silicone emulsion in the tray and the moving web to apply the silicone emulsion to the moving web. The application tray includes an operating level drain to maintain an operating level of silicone emulsion in the tray, a overflow drain at a higher level which prevents overflow of the application tray in the event that the operating level drain is clogged. An electronic monitoring device is provided for monitoring the silicone applicator level and generating a level fault signal when the level of silicone emulsion exceeds a predetermined level and for turning off the pump and disengaging the applicator rollers in response to the overflow signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.