Emergency power supply

• US 7,589,278 B2
• Filed: 02/24/2006
• Issued: 09/15/2009
• Est. Priority Date: 02/24/2006
• Status: Active Grant

• Current Assignee: Apical Industries, Inc. (Transdigm Group Incorporated)
• Original Assignee: Apical Industries, Inc. (Transdigm Group Incorporated)
• Inventors: Haney, Clayton W., Ricci Moretti, Luigi Umberto, Bravo, Pablo Enrique, Huff, Sunny Cardinal
• Primary Examiner(s): PATEL, DHIRUBHAI R
• Application Number:
  US11/361,553
• Publication Number:
  US 20070201189A1
• Time in Patent Office: 1,299 Days
• Field of Search: 174/50.52, 439/76.1, 439/620, 439/941, 361/328, 307/10.1, 307/9.1, 307/64, 307/66
• US Class Current: 174/50.52
• CPC Class Codes: B64D 25/18 Flotation gear aircraft alighting gear B64C
• CPC Class Codes: H05K 5/06 Hermetically-sealed casings specially adapted for small components H05K5/0095

Abstract

An emergency power supply for an electrical device that provides power sufficient to operate the emergency flotation system for a predetermined period of time after a malfunction of a primary power source. The emergency power supply includes at least one capacitor and a control circuit that are disposed in a housing that is sealed to prevent ingress of liquids. The emergency power supply remains functional even when it is partially submerged.

Claims

1. An emergency power supply for an electrical device, said power supply comprising:

a housing sealed to prohibit ingress of liquid;

a capacitor disposed within the housing and chargeable by a primary power source, said capacitor being configured to provide power to said electrical device when said primary power source does not provide power; and

a multi-pin connector that extends through the housing and is sealed to prohibit ingress of liquid into the housing, wherein the connector is configured to provide an electrical interface between the capacitor and the electrical device.

2. The emergency power supply of claim 1, further comprising a control circuit disposed within the housing, said control circuit being configured to selectively release power stored in the capacitor to operate the electrical device.

3. The emergency power supply of claim 2, wherein the control circuit is disposed on a circuit board that is mounted to the housing.

4. The emergency power supply of claim 1, further comprising a clamp member that couples the capacitor to the housing.

5. The emergency power supply of claim 4, wherein the clamp member is configured to dampen mechanical vibration.

6. The emergency power supply of claim 4, wherein the clamp member is configured to dampen mechanical shock.

7. The emergency power supply of claim 1, wherein the connector is water resistant.

8. The emergency power supply of claim 1, wherein the connector is waterproof.

9. The emergency power supply of claim 1, wherein the capacitor has a capacitance of approximately 68,000 uF.

10. An emergency power supply for an electrical device, said power supply comprising:

a housing sealed to prohibit ingress of liquid;

a control circuit disposed within the housing;

at least one capacitor disposed within the housing and electrically coupled to the control circuit and connectable to a primary power source; and

a connector configured to provide an electrical interface between the control circuit and the electrical device,

wherein the emergency power supply is configured to store sufficient power in the at least one capacitor to provide power to the electrical device for a predetermined period of time when the primary power source does not provide power.

11. The emergency power supply of claim 10, wherein the connector comprises a first part of a two part, multi-pin connector, said connector being sealed to prohibit ingress of liquid into the housing and being configured to prevent liquid from shorting across pins when said first part is connected to a second part of said two part connector.

12. The emergency power supply of claim 10, wherein the predetermined period of time is in the range of 5-10 minutes.

13. The emergency power supply of claim 10, wherein the predetermined period of time is approximately 7 minutes.

14. The emergency power supply of claim 10, wherein the control circuit is disposed on a circuit board that is mounted to the housing.

15. The emergency power supply of claim 10, wherein said at least one capacitor is a pair of capacitors each having sufficient capacitance to independently supply power to the electrical device for said predetermined period of time.

16. An emergency power supply for an electrical valve in an emergency inflation system, said power supply comprising:

a housing sealed to prohibit ingress of liquid;

a capacitor disposed within the housing and connected to a primary power source,

said capacitor being able to provide power to said electrical valve when said primary power source does not provide power; and

a first part of a two part, multi-pin connector, said connector being sealed to prohibit ingress of liquid into the housing and being configured to prevent liquid from shorting across pins when said first part is connected to a second part of said two part connector.

17. The emergency power supply of claim 16, further comprising a control circuit disposed within the housing, said control circuit being configured to selectively release power stored in the capacitor to operate the valve.

18. The emergency power supply of claim 17, wherein the control circuit is disposed on a circuit board that is mounted to the housing.

19. The emergency power supply of claim 18, further comprising a second capacitor, said second capacitor being disposed inside said housing and connected to said control circuit.

20. The emergency power supply of claim 19, wherein each of said capacitors has sufficient capacitance to independently supply power to the valve for a predetermined period of time.