Abstract: This invention concerns a method and apparatus for dispensing minute quantities of highly viscous material from a jetting needle when an expelling mechanism is activated using a nozzle plate with a jetting chamber having a top formed by a diaphragm and a bottom in fluid communication with a jetting needle. Fluid enters the chamber from an inlet channel and is jetted from the chamber by deforming the diaphragm to block the channel and expel a drop of fluid from the needle. A diaphragm driven metering chamber and/or reservoir chamber can optionally be used provide fluid to the jetting chamber.
Type:
Grant
Filed:
May 21, 2014
Date of Patent:
October 4, 2016
Assignee:
Advanjet
Inventors:
Robert L Ciardella, Duong La, Wai Ching Bessie Chin
Abstract: This invention concerns a method and apparatus for dispensing minute quantities of fluids and more particularly rapidly dispensing highly precise and repeatable, minute amounts of viscous fluids in a non-contact manner. An impacting element is impacted against a hardened insert on a flexible diaphragm to deflect the insert into a jetting chamber and against an outlet orifice in the jetting chamber. The movement of the diaphragm and insert force viscous fluid in the chamber through the outlet orifice and the impact jets that fluid from the outlet orifice, with the impact force being adjusted to jet the fluid from the orifice in a single drop.
Type:
Grant
Filed:
December 31, 2012
Date of Patent:
February 9, 2016
Assignee:
Advanjet
Inventors:
Robert L. Ciardella, Duong La, Wai Ching Bessie Chin
Abstract: This invention concerns a method and apparatus for dispensing minute quantities of highly viscous material from a jetting needle when an expelling mechanism is activated using a nozzle plate with a jetting chamber having a top formed by a diaphragm and a bottom in fluid communication with a jetting needle. Fluid enters the chamber from an inlet channel and is jetted from the chamber by deforming the diaphragm to block the channel and expel a drop of fluid from the needle. A diaphragm driven metering chamber and/or reservoir chamber can optionally be used provide fluid to the jetting chamber.
Type:
Application
Filed:
May 21, 2014
Publication date:
September 11, 2014
Applicant:
AdvanJet
Inventors:
Robert L Ciardella, Duong La, Wai Ching Bessie Chin
Abstract: This invention concerns a method and apparatus for dispensing minute quantities of highly viscous material from a jetting needle when an expelling mechanism is activated using a nozzle plate with a jetting chamber having a top formed by a diaphragm and a bottom in fluid communication with a jetting needle. Fluid enters the chamber from an inlet channel and is jetted from the chamber by deforming the diaphragm to block the channel and expel a drop of fluid from the needle. A diaphragm driven metering chamber and/or reservoir chamber can optionally be used provide fluid to the jetting chamber.
Type:
Grant
Filed:
January 4, 2011
Date of Patent:
June 24, 2014
Assignee:
Advanjet
Inventors:
Robert L. Ciardella, Duong La, Wai Ching Bessie Chin
Abstract: This invention concerns a method and apparatus for dispensing minute quantities of fluids and more particularly rapidly dispensing highly precise and repeatable, minute amounts of viscous fluids in a non-contact manner. An impacting element is impacted against a hardened insert on a flexible diaphragm to deflect the insert into a jetting chamber and against an outlet orifice in the jetting chamber. The movement of the diaphragm and insert force viscous fluid in the chamber through the outlet orifice and the impact jets that fluid from the outlet orifice, with the impact force being adjusted to jet the fluid from the orifice in a single drop.
Type:
Application
Filed:
December 31, 2012
Publication date:
May 8, 2014
Applicant:
Advanjet
Inventors:
Robert L. Ciardella, Wai Ching Bessie Chin, Duong La
Abstract: This invention concerns a method and apparatus for dispensing minute quantities of highly viscous material from a jetting needle when an expelling mechanism is activated using a nozzle plate with a jetting chamber having a top formed by a diaphragm and a bottom in fluid communication with a jetting needle. Fluid enters the chamber from an inlet channel and is jetted from the chamber by deforming the diaphragm to block the channel and expel a drop of fluid from the needle. A diaphragm driven metering chamber and/or reservoir chamber can optionally be used provide fluid to the jetting chamber.
Type:
Application
Filed:
January 4, 2011
Publication date:
April 12, 2012
Applicant:
AdvanJet
Inventors:
Robert L. Ciardella, Duong La, Wai Ching Bessie Chin