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US 4,060,812 AGranted
Nozzle for an ink jet printer
AssigneeInternational Business Machines Corporation
InventorsJohn Mako, Walter Thornton Pimbley
Life of this patent
Estimating the term…
Abstract
Damper element which absorbs soundwave energy produced in the liquid mass of an ink jet nozzle by a magnetostrictive drop generator is submersed in the liquid mass with or without attachment to the nozzle chamber.
Claims10
In an ink jet printer system wherein ink under pressure flows through a nozzle device and an electromechanical transducer is operated at a predetermined frequency for vibrating said nozzle device for applying perturbations to said ink as it flows through said nozzle and is emitted as a continuous stream to break into discrete drops as a result of said perturbations,
- said vibration of said nozzle device by said transducer operation resulting in the production of soundwaves within the body of said ink in said nozzle, the improvement comprising
- damper means within said nozzle device in contact with said body of ink contained within said nozzle device for absorbing energy from said soundwaves.
Dependencies are inferred from the claim text.