Method and apparatus for guiding an elongated generally cylindri

Printing – Special article machines

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101420, B41F 1700

Patent

active

052897672

ABSTRACT:
Mechanism for guiding a continuous length elongated member, such as an insulated wire, past a non-contact print head includes pairs of guide rollers operative to guide the elongated member in a generally constant orientation past the print head without smudging indicia printed at periodic positions along the member. In one embodiment, pairs of guide rollers are disposed upstream and downstream from the print head and include one-way bearings to prevent rearward movement of the elongated member without contacting the printed indicia. In another embodiment, a pair of cylindrical rollers are disposed downstream of the print head and urge the elongated member against a reference plate so as to maintain the member in desired orientation as it passes the print head without smudging the printed indicia.

REFERENCES:
patent: 2920384 (1960-01-01), Fasoli et al.
patent: 3635153 (1972-01-01), Gartside
patent: 3711757 (1973-01-01), Reforzo
patent: 4029006 (1977-06-01), Mercer
patent: 4089451 (1978-05-01), Zlaikha
patent: 4445668 (1984-05-01), Sauber
patent: 4705415 (1987-11-01), Grombchevsky et al.
patent: 5142298 (1992-08-01), Hoffmann et al.
Four photographs of prior wire marking apparatus.

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