Method and apparatus for dispensing fluid having volatile solven

Details Method and apparatus for dispensing fluid having volatile solven Method and apparatus for dispensing fluid having volatile solven

1997-02-07

1999-03-02

Kashnikow, Andres

Fluid sprinkling, spraying, and diffusing

Processes

239106, 3461401, 347 47, B05B 1700

Patent

active

058759670

ABSTRACT:
A method and apparatus for preventing nozzle clogging in systems for dispensing fluids that comprise a suspension or solution of solid particles in a volatile solvent, such as ink jet printing systems consisting of a control valve and a nozzle, the method comprising causing the solvent to withdraw from the nozzle by increasing diffusion of the solvent from the system at a point distal from the nozzle by means of inserting, between the nozzle and the control valve, a section of tubing that is semipermeable to the solvent, and the apparatus comprising the usual dispensing system with the addition of a semi-permeable tube between the control valve and the nozzle.

REFERENCES:
patent: 3909831 (1975-09-01), Marchio et al.
patent: 4054883 (1977-10-01), Ozone
patent: 4278983 (1981-07-01), Halasz
patent: 4291317 (1981-09-01), Corwin et al.
patent: 4623904 (1986-11-01), Conta et al.
patent: 5392989 (1995-02-01), Hurtig

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