US3278141A - Material diffusing apparatus for aircraft - Google Patents

Material diffusing apparatus for aircraft Download PDF

Info

Publication number
US3278141A
US3278141A US372428A US37242864A US3278141A US 3278141 A US3278141 A US 3278141A US 372428 A US372428 A US 372428A US 37242864 A US37242864 A US 37242864A US 3278141 A US3278141 A US 3278141A
Authority
US
United States
Prior art keywords
tank
collapsible
rigid
aircraft
air passage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US372428A
Inventor
Robert D Wolcott
Original Assignee
Robert D Wolcott
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert D Wolcott filed Critical Robert D Wolcott
Priority to US372428A priority Critical patent/US3278141A/en
Application granted granted Critical
Publication of US3278141A publication Critical patent/US3278141A/en
Anticipated expiration legal-status Critical
Application status is Expired - Lifetime legal-status Critical

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64DEQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLYING SUITS; PARACHUTES; ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D1/00Dropping, ejecting, releasing, or receiving articles, liquids, or the like, in flight
    • B64D1/16Dropping or releasing powdered, liquid, or gaseous matter, e.g. for fire-fighting

Description

Oct. 1 1, 1966 R, D, woLcoT-r 3,278,141

MATERIAL DIFFUSING vAPPARATUS FOR AIRCRAFT Filed June 5, 1964 United States Patent O "lee 3,278,141 MATERIAL DIFFUSING APIARA'IUS FR AIRCRAFT Robert D. Wolcott, Juneau, Alaska, assigner to the United States of America as represented by the Secretary of the Army Filed .lune 3, 1964, Ser. No. 372,428 2 Claims. (Cl. 244-136) The invention described herein may be manufactured and used by or for the Government for governmental purposes, without the payment to me of any royalty thereon.

Simple, lightweight, low-cost apparatus is important in spraying or diffusing uid materials into the air from airplanes. Crop dusting, spraying of insecticides, dispersing tire-lighting and other chemicals or iluids are examples of operations where apparatus is needed with characteristics as set forth above. The present apparatus is an improvement over previous apparatus for these purposes.

In the drawing:

FIG. 1 is a perspective view of an airplane embodying the present invention;

FIG. 2 is a section along line 2-2 through a wing ta-nk of FIG. 1;

FIG. 3 is a plan view of a modification; and

FIG. 4 is a front elevational view of the modification of FIG. 3.

In FIG. 1 an airplane has Wing-tip plates 10 attached to wings 12 and wing-tip tank containers 14.

In FIG. 2 a cross section through tank container 14 shows a slotted leading edge 16. Air is channeled through passage 18 between the inner wall of container 14 and the outer wall of a ta-nk 22 and out at 20 as indicated by the arrows. The tank 22 is collapsible and is sealingly connected to tank container 14 at 24, 26 resulting in a sealed compartment 28 between tank 22 and tank container 14. A pressurized container 30 has a valved outlet 32. Material in container 30 may be expelled through 32 to expand into compartment 28. This places pressure on the exterior of collapsible tank 22 to eject the fluid therefrom through outlets 34 through the Walls of tank 22 and into the airstream flowing through passage 18. The fluid is thoroughly mixed and churned by the air as it passes out through 20. Valve 32 may be opened and closed at will by the pilot by conventional apparatus.

FIGS. 3 and 4 illustrate a modification of the invention. Similar parts are designated by like reference numerals with the addition of primes. However, tank 22 need not be collapsible because the high velocity of air flow through throat 17 of the venturi-shaped passageway will create a vacuum sufiicient to draw the fluid material from tank 22 through nozzle 34. Passage of fluid through nozzle 34' may be controlled by a valve i-n a way known to those skilled in the art.

Tank 22 is attachedto wing 12 by one or more springs 36. Springs 36 are attached to wing 12 and to tank 22 thereby forming resilient attaching means which permit the tank to oscillate. Thus, the tank itself becomes substantially a free-flying tank and substantially supports its own weight when ilying speed is attained. Stresses and strains which would normally tend to tear the tank from the wing are thereby minimized.

Certain types of launching may require the tank 22 to be locked in level ilight attitude until airborne. Such 3,278,141 Patented @et lll, 1966 locking may be accomplished by solenoid actuated pins or similar apparatus 38. Prior to takeoff the wing tank 22 which usually is filled, may be securely locked to the wing in a level position, such as the position illustrated in FIG. l, by locking apparatus 38. When the plane is airborne the locking apparatus 38 may be released and the tank will fly along with the plane. Springs 36 prevent separation of the tank from the wing. Prior to landing, the material in tank 22 will have been discharged, as a general rule. Therefore, the tank will not be as heavy and springs 36 may be sufficient to sustain the empty tank in level position. However, if the tank has not been emptied, or it the springs are not adequate to support the tank in level position as the plane slows to a stop, then locking apparatus 38 may be utilized to secure tank 22 rigidly to wing 12.

I claim:

1. Material diffusing apparatus for aircraft comprising: a substantially rigid tank, a collapsible iluid tank in said rigid tank, a pressurized container inside of said rigid tank and exteriorly of said collapsible tank, valve means to release pressure from said pressurized container to the space between the interior of said rigid tank and the exterior of said collapsible tank to thereby pressurize such space and the collapsible tank, air passage means leading from an inlet adjacent to a leading edge of said rigid tank to an outlet adjacent to a trailing edge, and liquid passage means leading from said collapsible tank to said air passage means whereby, when said valve means is actuaed, pressure from said pressurized container will pressurize said collapsible tank and eject liquid therefrom into said air passage means to be diffused through the outlet of said air passage.

2. Material diffusing apparatus for an aircraft having a wing comprising.: walls dening a passage leading from an opening substantially to the rear trailing edge of the apparatus for passage of air therethrough, a restricted area in said passage, a nozzle in said restricted area through which uid may pass into the air flowing through said passage and restricted area, means resiliently securing said material diffusing apparatus to an aircraft wing, and means to secure said apparatus to the wing rigidly at times, such as at take olf, said last-mentioned means being releasable so that the apparatus may ily with the wing as resiliently restrained by said resilient securing means.

References Cited by the Examiner UNITED STATES PATENTS 1,580,301 4/1926 Johnson 244-136 1,619,183 3/1927 Bradner et al 244-136 1,957,075 5/ 1934 Morgensen 244-136 2,836,463 5/1958 Wilson 244-136 2,844,938 7/ 1958 Longwell 60-35.6 2,899,898 8/1959 Goss 60-35.6 3,168,270 2/ 1965 Bligard et al 244--54 X FOREIGN PATENTS 54,300 2/ 1938 Denmark.

MILTON BUCHLER, Primary Examiner.

BENJAMIN A. BORCHELT, Examiner.

R. F. STAHL, B. BELKIN, Assistant Examiners.

Claims (1)

1. MATERIAL DIFFUSING APPARATUS FOR AIRCRAFT COMPRISING: A SUBSTANTIALLY RIGID TANK, A COLLAPSIBLE FLUID TANK IN SAID RIGID TANK, A PRESSUREIZED CONTAINER INSIDE OF SAID RIGID TANK AND EXTERIORLY OF SAID COLLAPSIBLE TANK, VALVE MEANS TO RELEASE PRESSURE FROM SAID PRESSURIZED CONTAINER TO THE SPACE BETWEEN THE INTERIOR OF SAID RIGID TANK AND THE EXTERIOR OF SAID COLLAPSIBLE TANK TO THEREBY PRESSURIZE SUCH SPACE AND THE COLLAPSIBLE TANK, AIR PASSAGE MEANS LEADING FROM AN INLET ADJACENT TO A LEADING EDGE OF SAID RIGID TANK TO AN OUTLET ADJACENT TO A TRAILING EDGE, AND LIQUID PASSAGE MEANS LEADING FROM SAID COLLAPSIBLE TANK TO SAID AIR PASSAGE MEANS WHEREBY, WHEN SAID VALVE MEANS IS ACTUAED, PRESSURE FROM SAID PRESSURIZED CONTAINER WILL PRESSURIZE SAID COLLAPSIBLE TANK AND EJECT LIQUID THEREFROM INTO SAID AIR PASSAGE MEANS TO BE DIFFUSED THROUGH THE OUTLET OF SAID AIR PASSAGE.
US372428A 1964-06-03 1964-06-03 Material diffusing apparatus for aircraft Expired - Lifetime US3278141A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US372428A US3278141A (en) 1964-06-03 1964-06-03 Material diffusing apparatus for aircraft

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US372428A US3278141A (en) 1964-06-03 1964-06-03 Material diffusing apparatus for aircraft

Publications (1)

Publication Number Publication Date
US3278141A true US3278141A (en) 1966-10-11

Family

ID=23468067

Family Applications (1)

Application Number Title Priority Date Filing Date
US372428A Expired - Lifetime US3278141A (en) 1964-06-03 1964-06-03 Material diffusing apparatus for aircraft

Country Status (1)

Country Link
US (1) US3278141A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5591500A (en) * 1978-12-22 1980-07-11 Nakanihon Koukuu Kk Method of sprinkling by cylinder to sterilize fly* and sprinkling cylinder
DE2909737A1 (en) * 1979-03-13 1980-09-18 Messerschmitt Boelkow Blohm Spray container for aircraft - has moulded shell with membrane piston and compressed gas ejector
US4598885A (en) * 1979-03-05 1986-07-08 Waitzman Simon V Airplane airframe
US7017862B1 (en) * 2003-01-08 2006-03-28 Fischbach Jack T Wake vortex visualizer for an aircraft
US20090072095A1 (en) * 2007-09-14 2009-03-19 Airbus Smoke generation device for aircraft and aircraft fitted with such a device

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1580301A (en) * 1926-02-04 1926-04-13 Johnson Elmer Airplane powder-dusting apparatus
US1619183A (en) * 1925-05-08 1927-03-01 Donald B Bradner Process of producing smoke clouds from moving aircraft
US1957075A (en) * 1931-09-29 1934-05-01 E R Hawke Airplane spray equipment
US2836463A (en) * 1955-06-01 1958-05-27 Archie C Wilson Process for aircraft spraying and apparatus therefor
US2844938A (en) * 1952-04-11 1958-07-29 John P Longwell Fuel pressuring system for supersonic ram-jet
US2899898A (en) * 1959-08-18 Auxilliary carriage arrangement for a missile
US3168270A (en) * 1963-02-11 1965-02-02 Cal Val Res & Dev Corp Engine mount

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2899898A (en) * 1959-08-18 Auxilliary carriage arrangement for a missile
US1619183A (en) * 1925-05-08 1927-03-01 Donald B Bradner Process of producing smoke clouds from moving aircraft
US1580301A (en) * 1926-02-04 1926-04-13 Johnson Elmer Airplane powder-dusting apparatus
US1957075A (en) * 1931-09-29 1934-05-01 E R Hawke Airplane spray equipment
US2844938A (en) * 1952-04-11 1958-07-29 John P Longwell Fuel pressuring system for supersonic ram-jet
US2836463A (en) * 1955-06-01 1958-05-27 Archie C Wilson Process for aircraft spraying and apparatus therefor
US3168270A (en) * 1963-02-11 1965-02-02 Cal Val Res & Dev Corp Engine mount

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5591500A (en) * 1978-12-22 1980-07-11 Nakanihon Koukuu Kk Method of sprinkling by cylinder to sterilize fly* and sprinkling cylinder
US4598885A (en) * 1979-03-05 1986-07-08 Waitzman Simon V Airplane airframe
DE2909737A1 (en) * 1979-03-13 1980-09-18 Messerschmitt Boelkow Blohm Spray container for aircraft - has moulded shell with membrane piston and compressed gas ejector
US7017862B1 (en) * 2003-01-08 2006-03-28 Fischbach Jack T Wake vortex visualizer for an aircraft
US20090072095A1 (en) * 2007-09-14 2009-03-19 Airbus Smoke generation device for aircraft and aircraft fitted with such a device
US8827208B2 (en) * 2007-09-14 2014-09-09 Airbus Smoke generation device for aircraft and aircraft fitted with such a device

Similar Documents

Publication Publication Date Title
Fahlstrom et al. Introduction to UAV systems
US7059566B2 (en) Unmanned aerial vehicle for logistical delivery
US4832288A (en) Recovery system
US3749337A (en) Aerial sled
Austin Unmanned aircraft systems: UAVS design, development and deployment
Fielding Introduction to aircraft design
US3291242A (en) Combined vtol aircraft and ground effects machine
US2616509A (en) Pneumatic airfoil
US3702688A (en) Space shuttle vehicle and system
US2941764A (en) Flaps for supersonic aircraft escape systems
US3524611A (en) Controllable air duct for vertical and short take-off and landing type of air vehicle
US3289974A (en) Manned spacecraft with staged re-entry
EP1162139B1 (en) Reusable booster for the first stage of a launcher
US3881671A (en) Detachable cabin aircraft
US20050230535A1 (en) Immersible unmanned air vehicle and system for launch, recovery, and re-launch at sea
US5845879A (en) Inflatable conformable fuel tank
US2364677A (en) Compression airplane
US20100224721A1 (en) Vtol aerial vehicle
US2887055A (en) Training and test missile
US2777656A (en) Auxiliary fuel cell
US2382442A (en) Bombing target
US3202381A (en) Recoverable rocket vehicle
US3139033A (en) Aerodynamically stable missile
US3731893A (en) Cooling system, employing baffling means, for an aerodynamically heated vehicle
US3270908A (en) Space capsule