US2449695A

US2449695A - Fumigating package

Info

Publication number: US2449695A
Application number: US696770A
Authority: US
Inventors: Arthur L Galloway
Original assignee: TOBACEO BY PRODUCTS AND CHEMIC
Current assignee: TOBACEO BY PRODUCTS AND CHEMIC; TOBACEO BY-PRODUCTS AND CHEMICAL Corp
Priority date: 1946-09-13
Filing date: 1946-09-13
Publication date: 1948-09-21
Anticipated expiration: 1965-09-21

Description

Sept. 2l, 1948. A, I GALLQWAY 2,449,695

FUMIGATING PACKAGE Filed sept. 15, 194s lame, +Pwu,

and `emit Patented Sept. 21, 1948 .fz-,Massa i noivneaffrmo mennen ArthureL-wGallowayfliouisviile, Ky., assigner-to TobaceoBwPtfQducts and. GheinieaLCornoratierty Louisville, glia., a corporation `,ntDelaware l ,Applications'optomber 13, 1946,'l SerialNouGiGWil f t sioiaimsi (Commits.)

V lil-iis invention: `relate-s-. to finnisatineapaclsf age and an igniting device and more f In fumigatme packages iitbisatvpenit .isvfoiis tomary togignitegthebpdit of combustible maten rial in the container at one end or surface and to permit evolutionio-f the 1fumigating gases from thatsu-rfacedirectly to the atmosphere. As the combustion proceeds through the body the evolved fumigating gases must pass through the highly heated portion of.theecontainerradjacent the alreadyiburned portion of the `body and when `.the 1,f:,orr1lo1,is tionw leaves an ash andftlie gosen-must pass through this hot ash and the fumlgating agent may be wholly or partly destroyed by the high temperature to Which it is subjected.

An object of my invention is to ignite the body of combustible material in the container and lead the fumigating gases and vapors off from the container in such a way that they are not subjected to the destructive high temperature conditions created by the combustion.

In accordance with my invention I provide a container and a lling of combustible material similar to the container and filling composition described in U. S. Patent No. 2,071,171. As appears in said patent the container is made of metal and is provided with openings adjacent the top for the emission of the fumigating gases. The container is partially iilled with a combustible composition which, upon being ignited, continues to burn and evolve the fumigating gases. The composition is ignited by inserting an igniter through one of the openings provided for the emission of the fumigating gases. The combustion of the fumigating material, starting at the top of the mass thereof, progresses downwardly to the bottom and the gases generated rise through the ash of the burned material and leave the container at the top. The fumigating device of said patent might, as is taught by the prior art, have been provided with an igniter incorporated in the container but in accordance with the teachings of the prior art, such an igniter would have been so positioned as to ignite the body of combustible material at a point adjacent to the gas and vapor outlet openings.

Now in accordance with my invention, I provide for the ignition of the combustible material in the container at a point remote from the outlet openings so that the evolved gases will pass through the body of the unburned material on their-wav-tostheoutlet. In this way, the fumi. gati e.; gases. generated" by tbe; combustiuzvzi are torce away from theepoint afo'f fconrbustion'z and Ifro bonnet portion-onthe. .ont-ainerwadiaoent tostbev'point, oi-fooinbuetion to `and @through-the co razooefofxunburned material Zinfthacontainer torthesoutlet.. Asxthereombustion proceeds, the fumigatingf: eases will,` always be:` generated at -tbefilowesti temperature"createdibtfz the` combustioniwhich necessary.iorvtheirzgenerationand w' passie the .container outletsswithout be inarexposed `@tom ame-n higherf'tellaneratureV created bytbe combustion:

Two .iiris-trativeI :embodiments: or. iumigating `par:intens i faocordanoe f withri my: irwention-A are Sllownv:mathe-accompanying: drawingsrin which:

Fig. l is a vertical section of a container having an igniter incorporated in a recess in the bottom of the container, and

Fig. 2 is a vertical section of a container having an igniter projecting from the bottom of the container but 4protected by the ilange or foot of the container.

Referring to Fig. 1, I is the side Wall of a container formed of sheet metal or other suitable material and having the top closure 2 and the bottom closure 3. The side Wall I is provided, adjacent its top, with a series of openings 4 having frangible closures which may be formed by scoring the wall of the container as described in Patent No. 2,071,171. The bottom 3 of the container has the recess 6 and the downwardly eX- tending conical or pointed projection 1 which contains a suitable igniting material 8. The container is filled to a point below the level of the openings 4 with combustible fumigating gas generating material 9.

A `variety of igniter materials which can be started by holding a match or other source of heat to the point of the projection 1 are available for use, for example, a, mixture of sulfur, potassium nitrate, bentonite and shellac or the igniter composition of powdered aluminum, powdered iron, barium nitrate and glue disclosed in Patent No. 2,071,171.

A variety of combustible fumigating materials containing any volatile fumigating agent and any combustion supporting material also are available, for example, the compositions disclosed in said Patent No. 2,071,171 and Patent No. 1,412,065.

A required characteristic of the combustible material is that it shall be suiciently porous to permit the passage of the fumigating gas 3 through it. This requirement is met if the material is in spongy or granular form.

In the modification illustrated in Fig. 2 the bottom I0 of the container is flat and provided with the short downwardly extending projection Ii which is protected from contacting the oor or other supporting surface by the ange 0r foot I2 of the container. Otherwise the container of Fig. 2 is identical with that of Fig. 1 and the igniter composition and the combustible fumigating composition may be the same.

It will be appreciated that the container need not be cylindrical as illustrated but may be of any other suitable shape; that it may be formed of metal or any other suitable 'material'such as wood or ber board; that it may or may not be hermetically sealed; that any other suitable form of gas outlets may be provided and that any sideration of the essentials of the invention which are the following: a closed container charged with a porous, gas traversable body of combustible material capable of generating a fumigating gas, the container being provided with means for releasing the gas from the container at a point adjacent one surface of saidbody and means for 35 Number 4 igniting said body adjacent another remote surface thereof.

I claim:

l. A fumigating package comprising a container, a body of porous, gas traversable combustible material capable when ignited of burning and of liberating fumigating gases disposed within the container, means adjacent one surface of said body for releasing gas from the' container and means adjacent another surface of said body for igniting the same said container, aside from said means for releasing gas, being gas tight.

2. A fumigating package comprising a container, a body of porous combustible material filling at least the lower portion of the container and capable when ignited of burning and of liberating a fumigating gas, means in the wall of the container above said body for releasing gas from the container and means adjacent the bottom of the container for igniting said body, said container, aside from said means for releasingV gas, being gas tight.

3. A'fumigating device as dened in claim 2V in which the means for igniting the body of Vcornbustible material comprises a depression in the bottom of the container, said depressioncontaining an igniting material.

ARTHUR L'. GALLOWAY;r

REFERENCES CITED The following references are of record `in the le of this patent:

UNITED STATES PATENTS Name Date 860,450 Doige July' 1e, 1907