Metal working – Means to assemble or disassemble – Puller or pusher means – contained force multiplying operator
Patent
1986-07-09
1987-09-22
Goldberg, Howard N.
Metal working
Means to assemble or disassemble
Puller or pusher means, contained force multiplying operator
29DIG16, 430320, 430324, 430325, 430326, 204 11, B21D 5300, G03C 500, C25D 108
Patent
active
046945482
ABSTRACT:
The present invention relates to a method for producing spinning nozzle plates having funnel-shaped preliminary channels in flow communication with nozzle capillaries. Two embodiments of the method are provided which use photolithographic and electrodeposition techniques. Common to both embodiments of the method is the use of a metal plate provided with funnel-shaped preliminary channels as a self-aligning irradiation mask for irradiating a photoresist layer provided on the metal plate. Nozzle capillaries subsequently defined either in an electrodeposited layer according to a first embodiment of the invention or in electrodeposited tubular projections according to a second embodiment of the invention, have an offset-free, continuous transition between themselves and the preliminary channels. Photolithographic and electrodeposition techniques may also be used to define the funnel-shaped preliminary channels in the metal plates.
REFERENCES:
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patent: 4425777 (1984-01-01), Jeglinski
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patent: 4499177 (1985-02-01), Vollenbroek et al.
patent: 4552831 (1985-11-01), Liu
Gardner, William R.; "Process for Fabrication of Ink Jet Orifices"; Xerox Disclosure Journal, vol. 4, No. 2 (Mar.-Apr. 1979); pp. 251-252.
Lane, R.; "Metal Membrane Nozzle for Ink Jet Printer"; IBM Technical Disclosure Bulletin, vol. 19, No. 10 (Mar. 1977); p. 3984.
Ehrfeld Wolfgang
Hagmann Peter
Goldberg Howard N.
Kernforschungszentrum Karlsruhe GmbH
Wallace Ronald S.
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