Typewriting machines – Typing by other than type-face or type-die – Character formation by impact
Patent
1979-06-12
1981-07-21
Pieprz, William
Typewriting machines
Typing by other than type-face or type-die
Character formation by impact
400121, 101 9302, 310 13, 310 27, 335223, 346139R, B41J 312
Patent
active
042795206
ABSTRACT:
A print mechanism for a wire printer has a robust single-turn closed-loop transformer secondary winding as the moving part for driving a print wire into and out of a print position. Each secondary winding threads a transformer core on which is wound a multi-turn primary winding. A stack of such secondary windings, arranged with print wires in a closely spaced print row across the stack is supported in a static magnetic field produced by a magnetic assembly. Energization of a selected primary winding induces a large current flow in its associated secondary winding which reacts with the static magnetic field to drive the associated print wire into the print position. In one embodiment, the stack of secondary windings are all mounted on a single pivot and each secondary winding swings about the pivot as a whole upon energization of its associated primary winding. In another embodiment each secondary winding of the stack is formed so as to be elastically deformable whereby the portion of the secondary winding carrying the print wire is deflected into the print position under energization of its associated primary winding.
REFERENCES:
patent: 2931963 (1960-04-01), Wilson
patent: 2942163 (1960-06-01), Morrison
patent: 3117256 (1964-01-01), Gamblin
patent: 3351006 (1967-11-01), Belson
patent: 3453463 (1969-07-01), Wildi
patent: 3507213 (1970-04-01), Derc
patent: 3641583 (1972-02-01), Cless et al.
patent: 3741113 (1973-06-01), Mako et al.
patent: 3754199 (1973-08-01), Lisinski
patent: 3830976 (1974-08-01), Taylor
patent: 3842737 (1974-10-01), Gomi
patent: 3971311 (1976-07-01), Deproux
patent: 4005770 (1977-02-01), Hirose et al.
patent: 4014258 (1977-03-01), Wasserman
patent: 4019235 (1978-05-01), Nijenhuis
patent: 4022311 (1977-05-01), Krull
patent: 4101017 (1978-07-01), Englund et al.
patent: 4129390 (1978-12-01), Bigelow et al.
Rutter, Sr., "Single Turn Moving Coil Print Magnet", IBM Tech. Discl. Bulletin, vol. 13, No. 12, p. 3767, 5/71.
Eller et al., "Electromechanical Transducer", IBM Tech. Discl. Bulletin, vol. 12, No. 12, pp. 2207-2208, 5/70.
Bateson et al., "Linear . . . Hammer", IBM Tech. Discl. Bulletin, vol. 20, No. 11B, pp. 4686-4687, 4/78.
Arnold et al., "Control of--Hammer", IBM Tech. Discl. Bulletin, vol. 21, No. 11, pp. 4454-4456, 4/79.
Seifert, "Voice Coil Actuator Latch", IBM Technical Discl. Bulletin, vol. 21, No. 4, pp. 1508-1509, 9/78.
Bigel Mitchell S.
Cooper D. Kendall
International Business Machines - Corporation
Jancin, Jr. J.
Pieprz William
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