Fuser roll apparatus having a heat stabilizing collar
US5298957A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 25, 1992 |
| Grant date | Mar 29, 1994 |
| Priority date | — |
| Expiry date | Nov 25, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/2053
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An fuser apparatus for minimizing heat transfer between an end of a fuser roll and a fuser bearing includes a generally cylindrical fuser collar positioned between one end of the fuser roll and one of the fuser bearings and having an outer surface contacting the fuser bearing and an inner surface contacting the fuser roll. A plurality of protrusions are formed on either the inner surface or outer surface of the collar to reduce the heat transfer between the fuser roll and fuser bearing. Grooves supporting O-rings may also be formed in the collar or in an end of the fuser roll for allowing the fuser roll to move axially relative to the collar.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.