Recorders – Markers and/or driving means therefor – With ink supply to marker
Patent
1986-04-17
1988-01-12
Hartary, Joseph W.
Recorders
Markers and/or driving means therefor
With ink supply to marker
2391022, 310323, 310328, 310334, G01D 1516
Patent
active
047194804
ABSTRACT:
Provision is made spatially stabilizing standing capillary surface waves in fixed and repeatable locations with respect to stationary external references. For spatially stabilizing such a wave on the free surface of a volume of liquid, the wave propagation characteristics of the free surface of liquid are periodically varied in a spatially stable manner at a spatial frequency equal to the spatial frequency of the standing wave or a subharmonic thereof, thereby locking the crests and troughs of the standing wave in predetermined spatial locations. A spatially periodic pattern of notches in a wall or base plate bounding the free surface of the liquid may be employed to physically modulate its wave propagation characteristics at a suitable spatial frequency. Alternatively freely propagating secondary capillary surface waves may be launched from spatially periodic sites along the free surface of the liquid to actively modulate its wave propagation characteristics at the diesired spatial frequency.
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Greanias, E. C.; Hydraulic-Electrostatic Printer, IBM TDB, vol. 13, No. 5, Oct. 1970, pp. 1131-1132.
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Boucher, et al., "The Fundamentals of the Ultrasonic Atomization of Medicated Solutions, " Annals of Allergy, Nov. 1968, vol. 26, pp. 591-600.
Kenneth E. Bean, "Anisotropic Etching of Silicon," IEEE, vol. ED25, No. 10, Oct. 1978.
Elrod Scott A.
Khuri-Yakub Butrus T.
Quate Calvin F.
Hartary Joseph W.
Xerox Corporation
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