Thermal conservation assembly for roller fuser
Abstract
Abstract in an electrophotographic copier including a fuser having a heated fuser roller, a thermal conservation assembly for minimizing thermal losses and facilitating roller maintenance and removal. The assembly includes first and second heat reflective members which are mounted for pivotal movement between a first position wherein the members are in close proximity with the fuser roller in order to minimize thermal losses and a second position wherein said members are out of proximity with said roller in order to facilitate access to the roller for maintenance and removal. In roller fusers having a pair of heated fuser rollers such as for duplex copy fusing, each roller is provided with a movable thermal conservation assembly.
Inventors
- 👤 Edwin Clarence Hoffman
Bibliographic Details
Claims Analysis
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-02-06 | 1981-08-08 | 1982-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-02-06 | 1985-08-08 | 1986-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-02-06 | 1989-08-08 | 1990-02-07 | $7700.00 | Window Closed / Lapsed |