Device for removing incendiary matter from the interior of an aircraft

• US 4,391,017 A
• Filed: 12/28/1981
• Issued: 07/05/1983
• Est. Priority Date: 12/28/1981
• Status: Expired due to Fees

• Current Assignee: Lockheed Corporation (Martin Marietta Corporation)
• Original Assignee: Lockheed Corporation (Martin Marietta Corporation)
• Inventors: Bruensicke, Wilhelm A.
• Primary Examiner(s): MOORE, CHRISTOPHER K
• Application Number:
  US06/335,178
• Time in Patent Office: 554 Days
• Field of Search: 15/313, 15/314, 15/419, 15/415 R, 15/410, 15/409, 285/7, 138/89
• US Class Current: 15/313
• CPC Class Codes: A47L 7/0014 with additional means or devices between nozzle and casing
• CPC Class Codes: A47L 7/0038 with means for emptying the tanks
• CPC Class Codes: A47L 7/0042 Gaskets; Sealing means
• CPC Class Codes: A62C 3/08 in aircraft A62C3/0207 takes precedence
• CPC Class Codes: B64D 11/00 Passenger or crew accommodation; Flight-deck installations not otherwise provided for

Abstract

Flammable fluid or other incendiary matter (204) contained aboard an aircraft may be removed from the aircraft'"'"'s interior by means of a special purpose disposal device that utilizes the differential in pressure between the pressurized interior of a modern aircraft and the external airstream. The device itself comprises a main intake nozzle, an intermediate wand portion which is connected to the intake nozzle and in fluid communication therewith and a flexible hose provided with a quick connect fitting for connecting the device to a suitable outlet fitting in the skin of the aircraft. Preferably, several such outlet fittings are provided so that the device can be utilized at different locations within the aircraft'"'"'s interior without requiring an excessively long hose. Each of the outlets is normally closed by means of a disk-shaped plug held in a flush position with respect to the aircraft'"'"'s outer surface by means of a removable retainer ring. The plug itself is provided with an ejecting mechanism which may be a pyrotechnic fuse in the vicinity of the disk'"'"'s periphery which, when activated, ejects the central portion of the plug into the external airstream. In order to make the device more convenient to use during the emergency conditions for which it is intended, it may be equipped with a balanced flow regulator that may be operated by a cabin attendant with minimal force and which will nevertheless accurately regulate the force with which the nozzle will pick up fluids and other incendiary material.

Claims

1. A device for disposing of flammable fluids and other incendiary material from the pressurized interior of an aircraft comprising:

an intake nozzle;

an intermediate wand portion having a longitudinal bore extending therethrough, said bore being in fluid communication with said nozzle;

a flexible hose connected at the end of said intermediate wand portion bore remote from said intake nozzle;

a quick connect fitting at the other end of said flexible hose and in fluid communication therewith;

an outlet fitting adapted for forming a flow path for fluid communication with said quick connect fitting, said outlet fitting comprising

a plug which when removed results in said outlet fitting being in fluid communication with the external airstream and

means for removing said plug by ejecting it into said external airstream.

2. The device of claim 1 further comprising a flow regulator for regulating the flow through said nozzle when said quick connect fitting is attached to said outlet and said plug is removed.

3. The device of claim 2 wherein said flow regulator is provided with a compensating flow opening whereby the dynamic forces associated respectively with the flow through said compensating opening and through said intake nozzle tend to balance one another.

4. The device of claim 2 wherein said intermediate wand portion supports a control handle operatively connected to said flow regulator whereby the operator of the device may control the flow through the device with one hand while guiding it by said wand portion with another hand.

5. The device of claim 2 wherein said flow regulator balances the static forces resulting from the pressure differential between the pressure inside said cabin and the pressure of said external airstream such that said flow regulator control handle may be operated with a minimum of force.

6. The device of claim 1 wherein said plug ejecting means is a mechanical cutter for cutting a central plug portion out of a flush mounted disk as said quick connect fitting is inserted into said outlet fitting.

7. The device of claim 1 wherein said plug ejecting means is a pyrotechnic ring located about the periphery of a flush mounted disk, said ring being activated by an electrical current through a switch.

8. The device of claim 7 wherein said switch is a manually operated switch located in the vicinity of said outlet fitting.

9. The device of claim 8 wherein said switch is automatically activated by the insertion of said quick connect fitting into said outlet fitting.