Metal working – Method of mechanical manufacture – Electrical device making
Patent
1979-08-06
1981-06-09
Larson, Lowell A.
Metal working
Method of mechanical manufacture
Electrical device making
156230, 264134, 264225, H01R 4300
Patent
active
042715890
ABSTRACT:
A charge plate for an ink jet printer comprises a rigid support plate provided with a medially extending elongated slot and an electrode support structure cast in place adheringly against the walls of the slot. The electrode support structure is fabricated from a nonconductive casting resin which is cast against a silicone elastomer mold having a series of upstanding pegs coated with a release agent and an overcoating of conductive epoxy. The casting resin flows around the peg structure and bonds itself to the conductive epoxy coating. The conductive epoxy material transfers from the mold surface to the electrode support structure upon mold separation, so that the casting process produces a series of cylindrical charging electrodes cast in place within charging tunnels in the electrode support structure. The resulting product is subjected to a finishing operation, and flexible printed circuit leads are thereafter attached to the charging electrodes.
REFERENCES:
patent: 2781549 (1957-02-01), Milne
patent: 3552004 (1971-01-01), Hagelbarger et al.
patent: 3586907 (1971-06-01), Beam et al.
patent: 3604980 (1971-09-01), Robertson
patent: 3975741 (1976-08-01), Solyst
patent: 4035812 (1977-07-01), Van Breemen
Hochberg et al., IBM Tech. Discl. Bull., vol. 15, No. 9, Feb. 1973, pp. 2245-2246.
Beran et al., IBM Tech. Discl. Bull., vol. 17, No. 6, Nov. 1974, pp. 1803-1804.
Arbes C. J.
Larson Lowell A.
The Mead Corporation
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