IP Library Granted Patent US 9,724,659
Granted Patent B2
US 9,724,659 · App. 14/574,983 · Granted Aug 8, 2017

Stirring device and method using electrostatic charge

Inventors: Susan Abraham (San Jose, CA); Dennis Willie (San Jose, CA)
Assignee: Flextronics AP, LLC
B01F13/0003B01F13/0005B01F13/0076
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Quick Facts
Patent No.
US 9,724,659
App. No.
14/574,983
Granted
Aug 8, 2017
Kind
B2
Abstract

A stirring device and method for stirring a material using an applicator with an electrically controllable element placed on an outside surface of the applicator so that a controllable power source coupled to the electrically controllable element provides a controlled electrostatic charge to the element. The controlled electrostatic charge provided by the power source creates a variable electric field exterior to the outside surface of the applicator. The variable electric field induces a stirring movement to the material.

Claims (27)

1. A stirring device comprising:

an applicator comprising an electrically controllable element disposed on an outside surface of the applicator, wherein the electrically controllable element has at least a first electrode and a second electrode; and

a controllable power source coupled to the electrically controllable element, wherein

the first electrode and the second electrode are independently coupled to the controllable power source, and

the controllable power source forms a variable electric field exterior to the outside surface of the applicator by independently controlling a controlled electrostatic charge provided to the first electrode and the second electrode.

2. The device of claim 1 , wherein the electrostatic charge is pulsed between an energized condition and a de-energized condition.

3. The device of claim 1 , wherein the controlled electrostatic charge is pulsed between a first polarity and a second polarity.

4. The device of claim 1 wherein the first electrode and the second electrode simultaneously receive an electrostatic charge of opposite polarity.

5. The device of claim 1 , wherein the first electrode and the second electrode are simultaneously pulsed between an energized condition and a de-energized condition.

6. The device of claim 1 , wherein the first electrode is pulsed between a first polarity and a second polarity simultaneously with the second electrode pulsed between a second polarity and a first polarity.

7. The device of claim 1 , wherein the controllable power source controls one or more of amplitude and frequency.

8. A method of stirring comprising:

providing a vessel;

placing a material (substance) to be stirred in the vessel;

placing an applicator comprising an electrically controllable element disposed on an outside surface of the applicator in the vessel so that the electrically controllable element is disposed within the material to be stirred, or placing the applicator within an exterior region of a bottom surface of the vessel that is indented so that the electrically controllable element is disposed within the indent at a level between the bottom surface of the vessel and a top surface of the material to be stirred, wherein the electrically controllable element has at least a first electrode and a second electrode;

coupling a controllable power source to the electrically controllable element of the applicator, wherein the first electrode and the second electrode are independently coupled to the controllable power source;

applying a controlled electrostatic charge from the controllable power source to the electrically controllable element;

forming a variable electric field exterior to the outside surface of the applicator by independently controlling the controlled electrostatic charge provided to the first electrode and the second electrode of the electrically controllable element; and

stirring the material using the variable electric field.

9. The method of claim 8 , wherein the controlled electrostatic charge is pulsed between an energized condition and a de-energized condition.

10. The method of claim 8 , wherein the controlled electrostatic charge is pulsed between a first polarity and a second polarity.

11. The method of claim 8 , wherein the first electrode and the second electrode simultaneously receive an electrostatic charge of opposite polarity.

12. The method of claim 8 , wherein the first electrode and the second electrode are pulsed between an energized and a de-energized condition.

13. The method of claim 8 , wherein the first electrode is pulsed between a first polarity and a second polarity concurrently with the second electrode pulsed between a second polarity and a first polarity.

14. The method of claim 8 , wherein the controllable power source controls one or more of amplitude and frequency.

15. The device of claim 1 , wherein the applicator is at least partially inserted into a vessel containing a material to be stirred, and the controllable power source forms a variable electric field within the material to be stirred by independently controlling a controlled electrostatic charge provided to the first electrode and the second electrode.

16. The device of claim 1 , wherein the applicator is at least partially inserted into an exterior region of a bottom surface of the vessel containing the material to be stirred, that is indented, and the controllable power source forms a variable electric field within the material to be stirred by independently controlling a controlled electrostatic charge provided to the first electrode and the second electrode.

Assignments (9)
SECURITY INTEREST Recorded Jun 2, 2025
From: BRIGHT MACHINES, INC.; BRIGHT MACHINES AUTOMATION CORP.
To: STIFEL BANK
Reel/Frame 071467/0419 →
RELEASE OF SECURITY INTEREST IN INTELLECTUAL PROPERTY COLLATERAL AT REEL/FRAME NO. 67201/0797 Recorded Jun 2, 2025
From: JPMORGAN CHASE BANK, N.A.
To: BRIGHT MACHINES, INC.
Reel/Frame 071851/0097 →
TERMINATION AND RELEASE OF INTELLECTUAL PROPERTY SECURITY AGREEMENT AT REEL/FRAME NO. 58085/0124 Recorded May 29, 2025
From: HERCULES CAPITAL, INC.
To: BRIGHT MACHINES, INC.
Reel/Frame 071460/0482 →
TERMINATION AND RELEASE OF INTELLECTUAL PROPERTY SECURITY AGREEMENT AT REEL 057911 FRAME 0323 Recorded Apr 25, 2024
From: SILICON VALLEY BANK, A DIVISION OF FIRST-CITIZENS BANK & TRUST COMPANY (SUCCESSOR TO SILICON VALLEY BANK)
To: BRIGHT MACHINES, INC.
Reel/Frame 067238/0600 →
SECURITY INTEREST Recorded Apr 23, 2024
From: BRIGHT MACHINES, INC.
To: JPMORGAN CHASE BANK, N.A.
Reel/Frame 067201/0797 →
SECURITY INTEREST Recorded Nov 11, 2021
From: BRIGHT MACHINES, INC.
To: HERCULES CAPITAL, INC.
Reel/Frame 058085/0124 →
SECURITY INTEREST Recorded Oct 26, 2021
From: BRIGHT MACHINES, INC.; BRIGHT MACHINES AUTOMATION CORP.
To: SILICON VALLEY BANK, AS ADMINISTRATIVE AGENT AND COLLATERAL AGENT
Reel/Frame 057911/0323 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 24, 2021
From: FLEXTRONICS AP, LLC
To: BRIGHT MACHINES, INC.
Reel/Frame 055707/0012 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 18, 2014
From: ABRAHAM, SUSAN; WILLIE, DENNIS
To: FLEXTRONICS AP, LLC
Reel/Frame 034547/0877 →
Continuity (1)
Related Publication 20160175792A1 · Jun 23, 2016