US1851430A - Fumigating device - Google Patents

Description

March 729, 1932.

C. R. HUTCI -IINS FUMIGATING DEVICE Filed March 27, 1931 CLARENCE m me Mar; 29, 1932,

- UNITED STATES CLARENCE R. HUTCHINS, F JERSEY CITY, NEW JERSEY rumrcame nnvrcn Application filed. March 27, 1981. Serial No. 525,684.

This invention relates to improvements in fumigating-apparatus, andhas particular refs erence to an attachment for vacuum cleaners which is utilized to disseminate insecticides.

An object of the invention is to provide an proved device of simple and practical construction which can be attached to various known types of vacuum cleaners and the op eration of the latter employed to disseminate an insecticide or the like contained within said device.

The above and other objects will appear more clearly from the following detailed de-' scription, when taken in connection with the accompanying drawings, which illustrate a preferred embodiment of the inventive idea. i

In the drawingsv Figure 1 is a fragmentary side elevation of a conventional type of vacuum cleaner, showing the present invention attached to the suction plate of the cleaner; Figure 2 is an enlarged side elevation, partly in section, of the device shown in Figure 1, illustrating its adaptation to the hose connection of a cleaner;

Figure 3 is an end elevation, partly broken away, of the device; and

Figure 4 is a section on the line 44 of Figure 1'. i

The present device is "so constructed that the same may be attached to known vacuum cleaners, either to the suction plate thereof, or to the hose connection, to which are'ors dinarily connected the various instrumentali ties used in connection with a vacuum cleaner. The drawings illustrate more or less conventionally a vacuum cleaner 5 having a suction plate or connection 6 and the flexible hose 7 through which air suction or exhaust passes.

The attachment, which includes the essen tial features of the present invention, is made of any suitable material and comprises a casing 8, preferably cylindrical in cross-sectlon,

and havlng an adapter nozzle generally indicated by the numeral 9 extending from one end thereof. This nozzle is of tapered formation and comprisesv a series of sectionslO,

, each of different diameter for snugly fitting into the hose 7 of any particular vacuum cleaner, the sizes of these hose varying on different types of machines. ,The end of the casing adj acent theadapter 9 is constituted by a perforated plate 11, the periphery of which is seated in the wall of the casing, andsaid plate is provided with an opening 12 of considerably larger diameter than the per forations. Said'opening is utilized for the discharge of material from the casing during certain operations which will hereinafter be referred to, and is controlled by a shutter 13 of segmental form pivoted to the plate 11 at the center thereofand provided with afinger piece 14 which projects through a slot 15 in-the wall of the casing 8. When desired, the shutter 13 may be moved to covering and uncovering positions relative to the opening 12 by grasping the finger piece 14.

The other end of-the casing 8 has mounted thereon a removable closure plate 16 having a stud 17 which engages in a bayonet slot 18 formed in the wall of the casing whereby the 1 plate may be locked in position thereon.

This closure plate is alsoprovided with perforations19 and an opening 20 similar to the opening 12 in the plate 11. This opening 20 is likewise controlled by a shutter 21 pivoted to the plate at 22 for movement to covering and uncovering positions relative to the opening 20, a finger piece 23 projecting through a slot 24 in the plate 16 being utilized for the purpose of adjusting said shutter.

In practice, the casing is opened by removing the closure plate 16, after which a quantity of insecticide of any kind, such as crystals, is pouredinto the casing and the plate 16 replaced. If it is desired to disseminate the crystals in theform of a spray, the device is fitted to the suction plate of the vacuum cleaner by'means-of the adapter 9, or, in one known type of machine in which the opening in the plate is larger than any of the sections 10 of said adapter, the device may be reversed from the positionshown in Figure 1 and the end of the casing carrying the closure 1 16may be inserted into said opening. If the device is mounted as-shown in Figure l, the I 1 I opening 20 in the closure 16 is covered and the opening 12 in the plate 11 uncovered to permit of egress of the crystals through the latter opening when the vacuum cleaner is moj ' operating and a suction is being created by the fan of the machine. In other words, the operation of the fan draws air through the rfor'ations in the plates 16 and 11 and therey creates sufficient suction to agitate the crystals within the casing and draw them through the opening 12. The'secrystals are then finely-comminuted by passage through v the fan and are discharged through the hose 7 in the form of a spray. .Should the device be mounted in the reverse position from that shown in Figure 1-, the same action takes place and, in this instance, the opening'12 is covered while the shutter 21 is adjusted to uncover the opening 20 for the passage of the crystals from the casing to the fan. When it'is desired to simply utilize'the odor of the insecticide or other material within the casing 8 for fumigation, the device is re-* moved from the suction plate and the adapter inserted into the free end of the hose 7in' the same manner that various attachments of a vacuumcleaner are now mounted in mg and uncovering pivotedon each plate and movable'to coverpositions relative to the opemng in said plate.

In. testimony whereof, I have aflixed my signature. CLARENCE R; HUTCHINS.

position. When thus attached, the shutters 13 and 21 are both adjusted to cover their respective openings so that there will be no discharge of the material from the casing, but

the current of air which is. blown through the a I perforations in the plates at the two ends of the casing will carry with it the fumes from the material in said casing.

What is claimed is: I

1. In a fumigating device adaptedfor attachment to a vacuum cleaner, a casing for containing an' insecticide, a plate forming one end of said casing and having perforations for the passage ofair, and further having 'an open ng for. the passa e of the insecticide, and means to cover an uncover said opening.

2. In a containing an insecticide, perforated plates uncover said openings. I

device. adapted for at-.

forming the ends of said casing and each provided with an opening larger than the perforations therein, and means to cover and 3. In'a fumigating tachinentto a vacuum cleaner,-a casin for containing an insecticide, perforated p ates forming the ends of said casing andeach provided with an opening larger'than the uncovering perforations. therein, and a shutter pivoted on each plate and movable to covering and positions relative toathe opening in saidpla 4. In a forming one end of said casing and having an openin' therein, means extending from fumigating device adapted for atv tachment to a vacuum cleaner, a casing for fumigating device adapted ifor attachment to a vacuum cleaner, acasing for containing an insecticide, a perforated plate said end 0 the casing ior attachin the device 7

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