Ultrasonic liquid ejecting apparatus
CA 1206996 A · Owner: Matsushita Electric Industrial Co. Ltd. · Inventors: Maehara, Naoyoshi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Ultrasonic Liquid Ejecting Apparatus" ABSTRACT, An ultrasonic liquid ejecting apparatus for discharging liquid droplets comprises a housing including a chamber for holding liquid therein having an intake port connected to a liquid supply container. A bimorph vibrator system is provided comprising a vibrating member secured to the housing in pressure transmitting relation with the liquid in the chamber and a piezoelectric transducer secured to the vibrating member for inducing a displacement therein to discharge a small quantity of liquid through an nozzle opening formed in the vibrating member. A circuit is provided for exciting the transducer at a frequency corresponding to the resonant …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted July 2, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 2, 2003.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.