Sheet heating device
US4959529A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 24, 1989 |
| Grant date | Sep 25, 1990 |
| Priority date | — |
| Expiry date | Oct 24, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B2227/325
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A sheet heating device having heat insulators for preventing at least one of sheet feeding roller and sheet discharge roller from being overheated. The sheet heating device includes a delivery unit for delivering a piece of sheet, a heating unit for heating the sheet on a delivery path of the sheet, a cover member for covering the heating unit and opening on a feed side and a discharge side of the sheet, respectively, and two pairs of rollers adapted to close respective openings of the cover member. The pair of rollers serve as heat insulators for avoiding overheating to the sheet feeding and discharging rollers. Shutter members are also available for heat insulation. The shutter members also serve to confine hot air within an interior of the heating device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.