Conversion device and kit for converting a doctor blade to a spreader blade
US5546162A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 2, 1995 |
| Grant date | Aug 13, 1996 |
| Priority date | — |
| Expiry date | Jun 2, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/00987
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A conversion kit and method for converting the doctor blade of a toner cartridge for an imaging machine to a spreader blade. The conversion kit comprises an elastic strip of material, such as nonconductive urethane, with adhesive on one side to attach the elastic strip to a surface of the doctor blade. An assembly jig is provided to hold the doctor blade in position while applying the elastic strip. The jig is designed and sized to act as a guide for ensuring the accurate positioning of the elastic strip on the doctor blade. The jig has a groove to grasp the bent-over portion of the doctor blade, and a raised edge adjacent the groove against which the elastic strip is placed. The conversion kit further comprises washers approximately the same thickness as the elastic strip. The washers are adhered to the surface of the doctor blade at each end adjacent the elastic strip and in alignment with the holes for the screws used to fasten the doctor blade to the toner cartridge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.