Toner cartridge seal

Details Toner cartridge seal Toner cartridge seal

1992-06-10

1993-11-02

Grimley, A. T.

Photocopying

Contact printing

Light boxes

222DIG1, 355245, G03G 1506, G03G 2100

Patent

active

052588149

ABSTRACT:
A composite seal for preventing leakage of dry toner material from a toner hopper of a toner cartridge is made by interposing a resilient material between two generally smooth elongated rectangular sheets that have slightly different widths. This construction of the seal allows it to be pushed into thin entry slots, but also to expand to fill and seal a pre-existing channel between the toner hopper and the rest of the cartridge. The seal is most advantageously inserted into the cartridge by using a tool formed from two thin sheets of material that have curved ends.

REFERENCES:
patent: 4495690 (1985-01-01), McNeal
patent: 4816877 (1989-03-01), Keen
patent: 4862210 (1989-08-01), Woolley
patent: 4930684 (1990-06-01), Patterson
patent: 5080745 (1992-01-01), Paull
patent: 5110646 (1992-05-01), Prestel et al.
patent: 5184182 (1993-02-01), Michlin

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