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Title:
Assembly for sealing lead-in areas in a developer station
Abstract:
A sealing assembly for a developed station in a copying machine for sealing apertures in a casing wall of the developer station to prevent developer powder, including magnetizable particles, from escaping into the housing of the copying machine establishes an effective permanent non-friction and wear-free seal at casing wall apertures such as casing openings through which rotating shafts or other movable members extend. The seal consists of magnetic members in the vicinity of an aperture for establishing a magnetic field barrier across the aperture. The magnetic members consist of permanent magnets or of solenoids in the configuration of strips, discs, triangles, rings or wedges. Optionally a cover member straddling the aperture, may cooperate with the magnetic barrier members.
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Inventors:
Salger, Werner (Hamburg, DE, US)
Application Number:
027775
Filing Date: 1979-04-06 Publication_date: 1980-07-22 Assignee:
Lumoprint Zindler KG (GmbH & Co.) (Hamburg, DE)
Primary Class(es):
399/104
277/410, 399/290
Other Classes:
US Patent Ref:
| 2863538 | Dec, 1958 | Jaeschke | 277/80. | | 3031802 | May, 1962 | Leliaert | 277/80. | | 3543720 | Dec, 1970 | Drexler et al. | 355/3. | | 3643629 | Feb, 1972 | Kangas et al. | 118/658. | | 3791730 | Feb, 1974 | Sullivan | 118/654. | | 3834775 | Sep, 1974 | Tuffias et al. | 277/80. | | 3848879 | Nov, 1974 | Hudgins | 277/80. | | 3915121 | Oct, 1975 | Wilcox | 118/658. | | 4057258 | Nov, 1977 | Ernst et al. | 277/80. | | 4101211 | Jul, 1978 | Kayson | 118/653. | | 4132192 | Jan, 1979 | Weyers et al. | 118/658. |
Other Refs:
267656| Nov, 1963 | AU | | 2247953Apr, 1974 | DE | | 680233Oct, 1952 | GB | | 1507837Apr, 1978 | GB | | | | | | | |
Other References:
Machine Design, issue of Mar. 28, 1968, pp. 145-150. |