Adhesive bonding and miscellaneous chemical manufacture – Delaminating processes adapted for specified product – Delaminating in preparation for post processing recycling step
Patent
1985-09-27
1988-03-01
Powell, William A.
Adhesive bonding and miscellaneous chemical manufacture
Delaminating processes adapted for specified product
Delaminating in preparation for post processing recycling step
156651, 156654, 156655, 1566611, 156663, 430323, B44C 122, C03C 1500, C03C 2506
Patent
active
047283920
ABSTRACT:
In an ink jet printer, a print head comprises a front nozzle member having a front channel, a housing secured to the front nozzle member, and a rear nozzle member which defines with the housing a liquid chamber and further defines with the front nozzle member a laminar airflow chamber. The rear nozzle member has a forwardly projecting nozzle and a rear channel extending from the liquid chamber through the projecting nozzle in axial alignment with the front channel to form a meniscus at the front end. The airflow chamber is connected to an air supply for directing air to a point between the front and rear channels so that it creates a sharp pressure gradient along a path therebetween. A dead air region is created in a location adjacent the exit end of the rear channel to cause the meniscus to take a dome-like shape which is stabilized against vibrations and transients. An electric field gradient is established between the front channel and the meniscus to cause the latter to extend toward the front channel and expelled through the front channel. A portion of the front nozzle member is rendered liquid-repellant to prevent the field distribution from being seriously disturbed by an ink layer formed on it by stray liquid particles.
REFERENCES:
patent: 4059480 (1977-11-01), Ruh et al.
patent: 4066491 (1978-01-01), Ruh et al.
patent: 4276335 (1981-06-01), Lemmond
patent: 4403234 (1983-09-01), Miura et al.
patent: 4413268 (1983-11-01), Bentin
patent: 4549188 (1985-10-01), Shackleton
IBM Technical Disclosure Bulletin, vol. 26, No. 3A, Aug. 1983, p. 1041, Armonk, New York, US; G. J. Ratchford: "Nozzle Plate".
Patents Abstracts of Japan, vol. 9, No. 57, (M-363), [1780], 13th March, 1985; & JP-A-59 192 576, (Matsushita Denki Sangyo K.K.) 31-10-1984.
Akami Kenji
Kojima Tamotsu
Miura Masayoshi
Naito Hiroshi
Oda Gen
Matsushita Electric - Industrial Co., Ltd.
Powell William A.
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