Apparatus for electrical signal generation based upon movement and associated methods

• US 7,239,038 B1
• Filed: 12/16/2005
• Issued: 07/03/2007
• Est. Priority Date: 12/16/2005
• Status: Expired due to Fees

• Current Assignee: Harris Corporation (L3Harris Technologies, Inc.)
• Original Assignee: Harris Corporation (L3Harris Technologies, Inc.)
• Inventors: Meehan, Robert Francis, Zimmerman, Kurt Alan
• Primary Examiner(s): Ponomarenko, Nicholas
• Application Number:
  US11/303,346
• Publication Number:
  US 20070138793A1
• Time in Patent Office: 564 Days
• Field of Search: 290/42, 290/43, 290/44, 290/53, 290/54, 290/55
• US Class Current: 290/54
• CPC Class Codes: F03B 13/20 wherein both members , i.e. wom and rem are movable relative to the sea bed or shore
• CPC Class Codes: F03G 3/06 using pendulums
• CPC Class Codes: F03G 7/08 recovering energy derived from swinging, rolling, pitching or like movements, e.g. from the vibrations of a machine
• CPC Class Codes: F05B 2210/16 Air or water being indistinctly used as working fluid, i.e. the machine can work equally with air or water without any modification
• CPC Class Codes: F05B 2250/44 one element moving inside another one, e.g. wave-operated member (wom) moving inside another member (rem)
• CPC Class Codes: Y02E 10/30 Energy from the sea, e.g. using wave energy or salinity gradient

Abstract

A generator/sensor may include a pair of arcuate swing arms having respective opposing ends pivotally carried by a base so that the arcuate swing arms are transverse to one another and define a movable crossing point therebetween. A body may be carried by the arcuate swing arms at the crossing point therebetween. At least one electrical generator may be driven by relative movement between the body and the base, such as to generate electrical power or to sense movement, for example. The body may be a pendulum mass or sail responsive to fluid flow.

Claims

1. An apparatus comprising:

a base;

a pair of arcuate swing arms having respective opposing ends pivotally carried by said base so that said arcuate swing arms are transverse to one another and define a movable crossing point therebetween;

a body carried by said pair of arcuate swing arms at the crossing point therebetween; and

at least one electrical generator driven by relative movement between said body and said base.

2. The apparatus according to claim 1 wherein said at least one electrical generator is operatively connected between said base and at least one end of said pair of arcuate swing arms.

3. The apparatus according to claim 1 wherein said body comprises a pendulum mass.

4. The apparatus according to claim 3 wherein said pendulum mass comprises an electrical storage battery connected to said electrical generator.

5. The apparatus according to claim 1 wherein said body comprises a sail responsive to a fluid flow.

6. The apparatus according to claim 1 wherein said base is buoyant in water.

7. The apparatus according to claim 1 further comprising an electrical power load powered by said at least one electrical generator.

8. The apparatus according to claim 1 further comprising electrical sensing circuitry connected to said electrical generator.

9. The apparatus according to claim 1 further comprising a gear train operatively connected between said at least one electrical generator and the at least one end of said pair of arcuate swing arms.

10. The apparatus according to claim 1 wherein each arcuate swing arm has a semi-circular shape so that said pair of arcuate swing arms define a hemi-spherical range of movement for said body.

11. The apparatus according to claim 1 wherein said at least one electrical generator comprises a respective electrical generator operatively connected between each end of said pair of arcuate swing arms and said base.

12. The apparatus according to claim 1 wherein said base has an opening therein;

and wherein said pair of arcuate swing arms are carried within the opening.

13. A method for generating an electrical signal based upon relative movement between a body and a base of an apparatus further comprising a pair of arcuate swing arms having respective opposing ends pivotally carried by the base so that the arcuate swing arms are transverse to one another and define a movable crossing point therebetween with the body carried at the crossing point, the method comprising:

driving at least one electrical generator based upon relative movement between the body and the base to thereby generate the electrical signal.

14. The method according to claim 13 wherein driving comprises operatively connecting the at least one electrical generator between the base and at least one end of the pair of arcuate swing arms.

15. The method according to claim 13 wherein the body comprises a pendulum mass;

and wherein driving comprises moving the apparatus in a gravitational field.

16. The method according to claim 13 wherein the pendulum mass comprises an electrical storage battery connected to the electrical generator;

and further comprising charging the electric storage battery from the electrical generator.

17. The method according to claim 13 wherein the body comprises a sail;

and wherein driving comprises exposing the sail to a fluid flow.

18. The method according to claim 13 wherein the apparatus further comprises an electrical power load;

and further comprising powering the electrical power load from the at least one electrical generator.

19. The method according to claim 13 wherein the apparatus further comprises electrical sensing circuitry connected to the at least one electrical generator;

and further comprising performing sensing using the electrical sensing circuitry.