Apparatus and method for creating a developer housing seal via a

Details Apparatus and method for creating a developer housing seal via a Apparatus and method for creating a developer housing seal via a

1991-03-27

1992-08-11

Grimley, A. T.

Photocopying

Contact printing

Light boxes

118658, 355305, 355269, G03G 2100

Patent

active

051383829

ABSTRACT:
An apparatus for sealing a housing to prevent the escape of airborne material therefrom. Carrier beads are captured and suspended in a magnetic field extending across a region adapted to be sealed, forming a curtain of carrier beads for preventing the escape of airborne material, including toner particles, therepast. The carrier bead curtain is continuously collapsed and regenerated as carrier beads are captured, accumulated, and deposited into the housing.

REFERENCES:
patent: 3809012 (1974-05-01), Delvechio
patent: 3906899 (1975-09-01), Harpavat
patent: 4043298 (1977-08-01), Swackhamer
patent: 4436055 (1984-03-01), Yamashita et al.
patent: 4571060 (1986-02-01), Bares
patent: 4616919 (1986-10-01), Adley et al.
patent: 4697914 (1987-10-01), Hauser
patent: 4891673 (1990-01-01), Buell
patent: 4994863 (1991-02-01), Reynolds

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