Incremental printing of symbolic information – Ink jet – Fluid or fluid source handling means
Patent
1998-07-14
1999-10-19
Le, N.
Incremental printing of symbolic information
Ink jet
Fluid or fluid source handling means
B41J 2175
Patent
active
059697369
ABSTRACT:
A pressure regulator that sets the pressure of a liquid to a predetermined pressure differential below a reference pressure, such as atmospheric pressure. The pressure regulator comprises a liquid delivery channel and a capillary array. The liquid delivery channel includes a liquid input and a liquid output. The liquid flows through the liquid delivery channel from the liquid input to the liquid output. The capillary array is composed of ones of an elongate capillary. The capillary includes a first end in fluid communication with the liquid delivery channel and a second end in pressure communication with a source of the reference pressure. The liquid flows through the first end into the capillary to form a liquid surface in the capillary. The second end is remote from the first end. The capillary has cross-sectional dimensions in relation to the surface tension of the liquid and the angle of contact between the liquid and the capillary such that the pressure drop across the liquid surface in the capillary is equal to the predetermined pressure differential.
REFERENCES:
patent: 4347524 (1982-08-01), Engel et al.
patent: 4535343 (1985-08-01), Wright et al.
patent: 4550326 (1985-10-01), Allen et al.
patent: 5058856 (1991-10-01), Gordon et al.
patent: 5300959 (1994-04-01), McClelland et al.
patent: 5350616 (1994-09-01), Pan et al.
patent: 5635968 (1997-06-01), Bhaskar et al.
Thomas K. Jun and Chang-Jin Kim, "Microscale Pumping with Transversing Bubbles in Microchannels", Solid State Sensor and Actuator Workshop, Hilton Head, South Carolina, Jun. 2-6, 1996, pp. 144-147.
Barth Phillip
Field Leslie A.
Hoen Storrs
Merchant Paul P.
Robertson Channing R.
Hardcastle Ian
Hewlett--Packard Company
Le N.
Nghiem Michael
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