Toner cartridge with removable sleeve closure
US4732277A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 20, 1987 |
| Grant date | Mar 22, 1988 |
| Priority date | — |
| Expiry date | Jan 20, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S222/01
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A toner cartridge for use in a copying machine for supplying fresh toner to the developer for the machine is disclosed as being formed with an elongated opening to permit discharge of toner when inverted. A removable flexible strip covers the opening and is detachably held to the cartridge by adhesive material. The strip comprises a flattened sleeve having the edges of one of its sides adhesively held onto the cartridge across the opening and a pulling member retained in the sleeve with one of its ends connected to one end of the sleeve so that a gradual pulling of the other end of the member progressively removes the sleeve as the same is turned within itself or inside out thereby carrying toner particles adhering to the sleeve within the sleeve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.