The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 10, 1983
Filed:
Jun. 18, 1980
Arthur M Lewis, Redding, CT (US);
Exxon Research and Engineering Co., Florham Park, NJ (US);
Abstract
A device for forming and expelling a controlled quantity of liquid upon demand, such as an ink drop generating device, having a transducer deforming element for controlled deforming in response to an electrical signal, an orifice housing containing an orifice chamber which has an orifice opening at its front side and a relatively larger opening at its back side, the larger chamber opening being in direct communication with a liquid reservoir, the transducer deforming element and the orifice housing being closely positioned to provide direct interaction between the deforming element and the orifice chamber upon receipt of an electrical signal, the interaction causing generation of a liquid drop or other controlled quantity of liquid. Preferably the geometry of the orifice chamber and the deforming element are matched and the deforming element is oriented such that it may make contact with the orifice chamber when it deforms, which contact contributes to the generation of the controlled liquid quantity, or drop which is expelled from the orifice.