IP Library Granted Patent US 7,521,842
Granted Patent B2
US 7,521,842 · App. 11/820,840 · Granted Apr 21, 2009

Magnetostrictive / piezo remote power generation, battery and method

View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 7,521,842
App. No.
11/820,840
Granted
Apr 21, 2009
Kind
B2
Abstract

A power generation device generates power by subjecting a composite of magnetostrictive material and piezo material to a magnetic field. The composite of magnetostrictive material and piezo material may be incorporated in a battery or other storage device.

Claims (26)

1. A method for forming a battery comprising the steps of:

(a) providing a composite of (i) a magnetostrictive material and (ii) lead zirconate titanate (PZT) piezo material which generates electricity when subjected to magnetic field, said composite having a natural resonant frequency;

(b) connecting said composite to a capacitor or ferro capacitor; and

(c) subjecting said composite to a magnetic field having resonant frequency in the range of 90% to 110% of the natural resonant frequency of said composite.

2. The method according to claim 1 further including the step of positioning a voltage regulator between said composite and said capacitor or ferro capacitor.

3. The method according to claim 1 further including the step of mounting said composite and said capacitor or ferro capacitor on a flexible substrate.

4. The method according to claim 1 further including the step of mounting a plurality of said batteries on a flexible substrate and wiring at least some of said batteries in parallel with other of said batteries.

5. The method according to claim 4 further including the step of forming said flexible substrate with said plurality of batteries mounted thereon into one of a plurality of discrete shapes.

6. The method according to claim 5 wherein said plurality of discrete shapes includes cylindrical and further including the step of fastening electrodes to said discrete shape.

7. The method according to claim 1 further including the steps of creating said magnetic field by:

(a) providing a coil driver system having an oscillator, a divider, a nand gate, an inverter and a coil-capacitor having a first end and a second end;

(b) transmitting a signal from said oscillator at a first frequency to said divider, said divider reducing the frequency of said signal;

(c) transmitting said reduced frequency to said nand gate and to said inverter, said inverter creating two phases of said reduced frequency signal;

(d) transmitting said phases to first and second drivers; and

(e) transmitting said signal from said first driver to the first end of said coil-capacitor and from said second driver to the second end of said coil-capacitor.

8. A method of forming a battery comprising the steps of:

(a) forming a structure having (i) a composite of magnetostrictive material and piezo material, (ii) a first terminal at a first location, (iii) a second terminal at a second location, and (iv) a capacitor or ferro capacitor, said capacitor or ferro capacitor being positioned between said composite and (A) said first terminal or (B) said second terminal; and

(b) subjecting said structure to a pulsed or continuous magnetic field.

9. A method according to claim 8 wherein said piezo material is lead zirconate titanate (PZT).

10. The method according to claim 8 wherein said composite has a natural resonant frequency and further including the step of subjecting said composite to a magnetic field having a frequency in the range of 90% to 110% of the natural resonant frequency of said composite.

11. The method according to claim 8 further including the step of positioning a voltage regulator between said composite and said capacitor or ferro capacitor.

12. The method according to claim 1 further including the step of

(d) subjecting said composite to a pulsed or continuous magnetic field.

13. The method according to claim 1 further including the steps of

(d) forming a structure having (i) said composite of magnetostrictive material and piezo material, (ii) a first terminal at a first location, (iii) a second terminal at a second location, and (iv) a capacitor or ferro capacitor, said capacitor or ferro capacitor being positioned between said composite and (A) said first terminal or (B) said second terminal; and

(e) subjecting said structure to a pulsed or continuous magnetic field.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 11, 2023
From: COOPER TIRE & RUBBER COMPANY
To: GOODYEAR TIRE & RUBBER COMPANY, THE
Reel/Frame 062354/0046 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 21, 2007
From: TUCKER, RANDALL L.; CARROLL, GARY
To: COOPER TIRE & RUBBER COMPANY
Reel/Frame 019516/0883 →