Separable liquid droplet instrument and magnetic drivers therefor
AssigneeXerox Corporation
InventorsKenneth H. Fischbeck, Richard H. Vernon
Life of this patent
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Abstract
An ink jet assembly comprises a magnetic driver and a liquid droplet instrument. The driver includes a plurality of magnets, which may be selectively energized. The instrument includes a diaphragm means, which forms an outer wall of each of a plurality of chambers and when exposed to a magnetic field, deforms to decrease the volume of a chamber to increase the pressure therein to express a liquid droplet therefrom. The driver and instrument are releasably secured to each other to permit replacement of the instrument without disposing the driver.
Claims10
In a liquid drop generator comprising:
- a housing having a plurality of pressure chambers therein, said pressure chambers opening onto an outer surface of said housing and elastic diaphragm means sealing each chamber opening thereby forming an outer wall of a respective chamber;
- driver unit means having a plurality of members permeable to magnetic fields, said housing releasably secured to the driver unit means" each of said permeable members releasably engaging a portion of said elastic diaphragm means of a respective one of said chambers;
- means for selectively effecting a magnetic field in each of said permeable members;
- said elastic diaphragm means being so constructed and arranged to deform to decrease the volume of a respective chamber in response to said effected magnetic field.
In a liquid drop generator comprising:
- a housing having at least one pressure chamber therein, said pressure chamber opening onto an outer surface of said housing and elastic diaphragm means sealing said chamber opening thereby forming an outer wall thereof;
- driver unit means having at least one member permeable to magnetic fields, said housing releasably secured to the driver unit means said permeable member releasably engaging a portion of said elastic diaphragm means of said chamber;
- means for selectively effecting a magnetic field in said permeable member;
- said elastic diaphragm means being so constructed and arranged to deform to decrease the volume of said chamber in response to said effected magnetic field.
Dependencies are inferred from the claim text.