Ink jet print head
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 17, 1984
Grant Date -
N/A
app pub date -
Nov 25, 1981
filing date -
Nov 28, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An ink jet print head for projecting droplets of ink on demand includes a pressurization chamber including at least one wall defining a vibratory plate. A nozzle is open to the pressurization chamber and defines a fluid passage through which ink is ejected. A piezoelectric element is operatively coupled to the vibratory plate which is selectively energized to vibrate the wall thereby changing the volume of the pressurization chamber to eject ink through the nozzle. A vibratory system is defined by the piezoelectric element and the vibratory plate with the acoustic capacitance of the vibratory system being less than or equal to 9.times.10.sup.-17 m.sup.5 /N.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully