Direction controlled service apparatus

• US 9,457,907 B2
• Filed: 04/15/2013
• Issued: 10/04/2016
• Est. Priority Date: 04/15/2013
• Status: Active Grant

• Current Assignee: The Boeing Co.
• Original Assignee: The Boeing Co.
• Inventors: Brown, Douglas A., Cheung, Kwun-Wing W.
• Primary Examiner(s): MCFALL, NICHOLAS A
• Application Number:
  US13/863,360
• Publication Number:
  US 20140306059A1
• Time in Patent Office: 1,268 Days
• US Class Current: 1/1
• CPC Class Codes: B60H 1/3442 the frame being spherical
• CPC Class Codes: B64D 11/00 Passenger or crew accommodation; Flight-deck installations not otherwise provided for
• CPC Class Codes: B64D 13/00 Arrangements or adaptations of air-treatment apparatus for aircraft crew or passengers, or freight space , or structural parts of the aircraft treatment rooms with artificial climate for medical purposes A61G10/02; respiratory apparatus in general A62B; for vehicles in general B60H
• CPC Class Codes: B64D 2011/0038 Illumination systems for cabins as a whole
• CPC Class Codes: B64D 2011/0053 Cabin passenger reading lights
• CPC Class Codes: B64D 2013/003 Cabin ventilation nozzles
• CPC Class Codes: F03G 7/0614 using shape memory elements
• CPC Class Codes: F03G 7/065 using a shape memory element

Abstract

A direction controlled service apparatus may include a mounting assembly, a housing assembly configured to operably connect to the mounting assembly, the housing assembly being movable with respect to the mounting assembly, and a plurality of actuators connected between the mounting assembly and the housing assembly, each actuator of the plurality of actuators being configured to contract upon a current being applied to the actuator to rotate the housing assembly with respect to the mounting assembly.

Claims

1. A direction controlled service apparatus comprising:

a mounting assembly;

a housing assembly configured to operably connect to said mounting assembly, said housing assembly being movable with respect to said mounting assembly;

a plurality of actuators connected between said mounting assembly and said housing assembly, wherein each actuator of said plurality of actuators comprises a shape memory alloy wire and contracts upon application of an electric current; and

at least one locking mechanism configured to releasably secure said housing assembly in a fixed position with respect to said mounting assembly, wherein said locking mechanism comprises;

a latch movable between an open and a closed configuration, said latch being configured to operably engage said housing assembly upon being set in said closed configuration;

a latch release movable between an engaged and a disengaged configuration, said latch release being configured to operably engage said latch upon being set in said engaged configuration;

a latch actuator operably connected to said latch, said latch actuator being configured to move said latch into said open configuration; and

a latch release actuator operably connected to said latch release, said latch release actuator being configured to move said latch release into said disengaged configuration;

wherein said latch actuator and said latch release actuator are each configured to contract upon a current being applied to one of said latch actuator or said latch release actuator, said latch actuator and said latch release actuator each comprising a shape memory alloy wire.

2. The apparatus of claim 1 further comprising at least one current generating circuit electrically connected to said plurality of actuators, said current generating circuit being configured to apply said electrical current to each actuator of said plurality of actuators.

3. The apparatus of claim 2 further comprising a control board electrically connected to said at least one current generating circuit;

wherein said control board is configured to receive a wireless signal, said wireless signal representing a position of said housing assembly with respect to said mounting assembly.

4. The apparatus of claim 1 wherein:

said housing assembly comprises a ball-shaped housing, said ball-shaped housing comprising a first ring;

said mounting assembly comprises a socket housing configured to receive said ball-shaped housing, said socket housing comprising a second ring;

each of said actuators of said plurality of actuators being connected between said first ring and said second ring, said plurality of actuators being spaced circumferentially about said first ring and said second ring; and

said ball-shaped housing being configured to rotate with respect to said socket housing upon contraction of at least one actuator of said plurality of actuators.

5. The apparatus of claim 4 wherein each of said actuators comprises a first end connected to said first ring and an opposed second end connected to said second ring.

6. The apparatus of claim 4 wherein each of said actuators comprises a first end and a second end, said first end and said second end each being connected to said first ring and an intermediate location of said actuator being looped about said second ring.

7. The apparatus of claim 6 wherein each of said actuators comprises:

a first coiled section extending from proximate said first end to proximate said intermediate location; and

a second coiled section extending from proximate said second end to proximate said intermediate location.

8. A direction controlled service apparatus comprising:

a mounting assembly;

a housing assembly configured to operably connect to said mounting assembly, said housing assembly being movable with respect to said mounting assembly; and

a plurality of actuators connected between said mounting assembly and said housing assembly, wherein each actuator of said plurality of actuators comprises a shape memory alloy wire and contracts upon application of an electric current, and wherein;

said housing assembly comprises a ball-shaped housing, said ball-shaped housing comprising a first ring;

said mounting assembly comprises a socket housing configured to receive said ball-shaped housing, said socket housing comprising a second ring;

each of said actuators of said plurality of actuators being connected between said first ring and said second ring, said plurality of actuators being spaced circumferentially about said first ring and said second ring; and

said ball-shaped housing being configured to rotate with respect to said socket housing upon contraction of at least one actuator of said plurality of actuators.

9. The apparatus of claim 8 further comprising at least one current generating circuit electrically connected to said plurality of actuators, said current generating circuit being configured to apply said electrical current to each actuator of said plurality of actuators.

10. The apparatus of claim 9 further comprising a control board electrically connected to said at least one current generating circuit;

wherein said control board is configured to receive a wireless signal, said wireless signal representing a position of said housing assembly with respect to said mounting assembly.

11. The apparatus of claim 8 further comprising at least one locking mechanism configured to releasably secure said housing assembly in a fixed position with respect to said mounting assembly.

12. The apparatus of claim 11 wherein said locking mechanism comprises:

a latch movable between an open and a closed configuration, said latch being configured to operably engage said housing assembly upon being set in said closed configuration;

a latch release movable between an engaged and a disengaged configuration, said latch release being configured to operably engage said latch upon being set in said engaged configuration;

a latch actuator operably connected to said latch, said latch actuator being configured to move said latch into said open configuration; and

a latch release actuator operably connected to said latch release, said latch release actuator being configured to move said latch release into said disengaged configuration;

wherein said latch actuator and said latch release actuator are each configured to contract upon a current being applied to one of said latch actuator or said latch release actuator, said latch actuator and said latch release actuator each comprising a shape memory alloy wire.

13. The apparatus of claim 8 wherein each of said actuators comprises a first end connected to said first ring and an opposed second end connected to said second ring.

14. The apparatus of claim 8 wherein each of said actuators comprises a first end and a second end, said first end and said second end each being connected to said first ring and an intermediate location of said actuator being looped about said second ring.

15. The apparatus of claim 14 wherein each of said actuators comprises:

a first coiled section extending from proximate said first end to proximate said intermediate location; and

a second coiled section extending from proximate said second end to proximate said intermediate location.

16. The apparatus of claim 8 wherein said ball-shaped housing comprises:

a first opening disposed at an upper end;

a second opening disposed at a lower end; and

a light-emitting diode module connected about said second opening, said light-emitting diode module comprising a plurality of light-emitting diodes.

17. The apparatus of claim 8 wherein said ball-shaped housing comprises:

a first opening disposed at an upper end;

a second opening disposed at a lower end;

a connector connected between said first opening and an air source; and

a shutter assembly connected about said second opening, said shutter assembly configured to regulate an air flow directed from said air source.

18. The apparatus of claim 17 wherein said shutter assembly comprises:

a plurality of blades positioned adjacent to said second opening, each blade of said plurality of blades being configured to overlap an adjacent blade;

a blade actuator operably connected to each blade of said plurality of blades, said blade actuator being configured to contract upon a current being applied to said blade actuator; and

a locking mechanism configured to retain each blade of said plurality of blades in a fixed position relative to said adjacent blade;

wherein said plurality of blades at least partially overlap in succession upon contraction of said blade actuator to at least partially expose said second opening; and

wherein said blade actuator comprises a shape memory alloy wire.

19. The apparatus of claim 18 wherein:

said blade actuator comprises a fixed first end and a second end;

said shutter assembly comprises;

a toothed rack connected to said second end of said blade actuator, said rack being movable upon contraction of said blade actuator, said locking mechanism being movable between an engaged configuration and a disengaged configuration, and said locking mechanism being configured to operably engage said rack upon being set in said engaged configuration; and

a locking mechanism actuator operably connected to said locking mechanism, said locking mechanism actuator being configured to contract upon a current being applied to said locking mechanism actuator to move said locking mechanism to said disengaged configuration; and

said locking mechanism actuator comprises a shape memory alloy wire.

20. The apparatus of claim 17 wherein said shutter assembly comprises:

a rigid frame comprising a central hub, a perimeter frame, and a plurality of radial frame members;

a flexible diaphragm comprising a central region connected to said hub and a perimeter extending outwardly toward said perimeter frame;

a plurality of diaphragm actuators operably connected between said perimeter of said diaphragm and said hub, each diaphragm actuator of said plurality of diaphragm actuators being configured to contract upon a current being applied to said diaphragm actuator; and

a locking mechanism configured to retain said perimeter of said diaphragm in a fixed position relative to said perimeter frame;

wherein said diaphragm at least partially contracts upon contraction of said plurality of diaphragm actuators to at least partially expose said second opening; and

wherein said plurality of diaphragm actuators each comprises a shape memory alloy wire.