Jetting device
US-2016256888-A1 · Sep 8, 2016 · US
Jetting device
US10052689B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10052689-B2 |
| Application number | US-201615215184-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 20, 2016 |
| Priority date | Jul 28, 2015 |
| Publication date | Aug 21, 2018 |
| Grant date | Aug 21, 2018 |
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- Title
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Abstract
Official abstract text for this publication.
A jetting device includes: a fluid chamber connected to a nozzle and containing an electrically conductive liquid to be jetted out through the nozzle; a magnetic field generator arranged to create a magnetic field in the fluid chamber; a pair of electrodes contacting the electrically conductive liquid in the fluid chamber; and a controller arranged to control a flow of an electric current through the electrodes and the electrically conductive liquid. The magnetic field generator is arranged to create a rotating magnetic field in the fluid chamber.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method of removing gas bubbles from a fluid chamber of a jetting device, the device comprising: a fluid chamber connected to a nozzle and containing an electrically conductive liquid to be jetted-out through the nozzle; a magnetic field generator arranged to create a magnetic field in the fluid chamber; a pair of electrodes contacting the electrically conductive liquid in the fluid chamber; and a controller arranged to control a flow of an electric current through the electrodes and the electrically conductive liquid, wherein the magnetic field generator includes at least one electromagnet, and wherein the magnetic field generator comprises a first magnet assembly arranged to create a magnetic field in a first direction normal to an axis of the nozzle, and a second magnet assembly arranged to create a magnetic field in a second direction normal to the axis of the nozzle and normal to said first direction, and the controller is arranged to modulate the magnetic fields created by the first and second magnet assemblies, the method comprising the step of controlling the magnetic field generator to rotate the magnetic field in the fluid chamber. 2. The method according to claim 1 , further comprising a step of varying an angular velocity with which the magnetic field is rotated. 3. A jetting device comprising: a fluid chamber connected to a nozzle and containing an electrically conductive liquid to be jetted-out through the nozzle; a magnetic field generator arranged to create a magnetic field in the fluid chamber; a pair of electrodes contacting the electrically conductive liquid in the fluid chamber; and a controller arranged to control a flow of an electric current through the electrodes and the electrically conductive liquid, wherein the magnetic field generator is arranged to create a rotating magnetic field in the fluid chamber, wherein the magnetic field generator includes at least one electromagnet, and wherein the magnetic field generator comprises a first magnet assembly arranged to create a magnetic field in a first direction normal to an axis of the nozzle, and a second magnet assembly arranged to create a magnetic field in a second direction normal to the axis of the nozzle and normal to said first direction, and the controller is arranged to modulate the magnetic fields created by the first and second magnet assemblies. 4. The jetting device according to claim 3 , wherein the controller is arranged to energize at least one of the electromagnets for generating a stationary magnetic field in an operating mode of the device. 5. The jetting device according to claim 3 , wherein the magnetic field generator includes at least one permanent magnet.
Assignees
Inventors
Classifications
Nozzles · CPC title
Electromagnetic transducer · CPC title
generating single droplets or particles on demand · CPC title
casting nozzle; controlling metal stream in or after the casting nozzle · CPC title
Cross-Sectional Technologies · mapped topic
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Frequently asked questions
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- What does patent US10052689B2 cover?
- A jetting device includes: a fluid chamber connected to a nozzle and containing an electrically conductive liquid to be jetted out through the nozzle; a magnetic field generator arranged to create a magnetic field in the fluid chamber; a pair of electrodes contacting the electrically conductive liquid in the fluid chamber; and a controller arranged to control a flow of an electric current throu…
- Who is the assignee on this patent?
- Oce Tech Bv
- What technology area does this patent fall under?
- Primary CPC classification B22D45/005. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Aug 21 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).