US2034151A

US2034151A - Spraying device

Info

Publication number: US2034151A
Application number: US745622A
Authority: US
Inventors: William M Nicoson
Original assignee: Individual
Current assignee: Individual
Priority date: 1934-09-26
Filing date: 1934-09-26
Publication date: 1936-03-17
Anticipated expiration: 1953-03-17

Description

March 17, 1936. w. M. NlcosoN 2,034,151

SPRYING DEVICE Filed Sept. 26, A1934 Patented Mar. 17, 1936 UNITED STATES PATE T OFFICE SPRAYING DEVICE William M. Nicoson, Indiana, Pa.

Application September 26, 1934, Serial No. 745,622

3 Claims. (Cl. 299-88) This invention relates to spraying devices and more particularly to spraying devices of the atomizer type, for example devices in which the flow of fluid under pressure, such as steam, is utilized to draw substance to be sprayed through a tube and to atomize and spray it diifusely. The invention is particularly adapted for use in the spraying of such insecticides or disinfectants as are rendered more effective when sprayed in heated condition.

An object of the invention is to provide a spraying device of the general character referred to embodying improved structural features including means for p-re-heating substance to be sprayed before it reaches the spray nozzle.

Another object is to provide an improved organization of sprayer head, reservoir for substance to be sprayed, and support for the reservoir and head.

A further object is to provide a sprayer of the character referred to having improved means for connection to fluid pressure supply hoses ort different sizes. Other objects will become apparent from a reading of the following description, the appended claims, and the accompanying drawing, in which:

Figure 1 is a perspective view of a sprayer ernbodying the invention;

Figure 2 is a central vertical sectional view of my improved sprayer;

Figure 3 is a detail sectional View drawn on an enlarged scale and showing an improved form of adjustable hose connection;

Figure 4 is a section taken on the line 4 4 of Figure 3; and

Figure 5 is a detail sectional view drawn on an enlarged scale and showing a Inodication.

The illustrative embodiment of the invention shown in the drawing includes a sprayer head generally designated A, a reservoir B for substance to be sprayed, and a support for the head and reservoir, generally designated C.

In the form shown, the head A includes a body I which conveniently may comprise a screw cap or top of the type used on the well-known Mason jars. A flow pipe 2 extends across and is secured to the top side of the body I by means of straps 3, one end of the pipe being swedged inwardly to provide a discharge nozzle 4. A control valve IIa of any desired kind is interposed in the flow pipe for controlling the flow of uid under pressure.

A delivery tube 5 extends longitudinally through the iiow pipe from the discharge nozzle 4 to a point over the center of the body I, where it is formed with a right angle bend 6 and extends downwardly as at I through the bottom of the pipe 2 and body I and into the reservoir B, terminating above the bottom f the latter as shown in Figure 2.

In accordance with one feature of the invention, the reservoir B is transparent so that the amount of insecticide or other substance contained therein can readily be observed, and preferably the reservoir comprises an ordinary Mason jar prol0 vided with a threaded upper end adapted to connect with the threaded body I of the head A. In order to prevent breaking of the reservoir jar,

I provide the novel supporting means C which comprises an annular base 12 of larger diameter 15 than the reservoir, and a plurality of spaced legs 8 connecting the base Ia and sprayer head A for supporting the head and the reservoir B with the bottom of the latter disposed above and out of contact with a table top or other resting surface 9, as shown in Figure 1. It is apparent that the support C protects the relatively fragile glass reservoir against accidental breakage without interfering with the operators observing the level of liquid in the reservoir, an advantage of particular importance when the device is to be carried around from place to place, as in the disinfecting of food plants or the like. Inasmuch as the sprayer described herein is thus adapted particularly for work requiring a portable unit, I preferably provide a carrying handle IIJ secured to the body I of the head.

When it is desired to refill the reservoir B, the latter is unscrewed from the head A and is withdrawn downwardly through the base 'la of the support C, as indicated in dotted lines in Figure 2. After the reservoir is refilled, it is inserted upwardly through the base 'IEL and screwed to the head. 40

I have found that some insecticides are rendered more effective if they are pre-heated before being sprayed, although it may be undesirable to pre-heat the whole mass of liquid insecticide in the reservoir B. In order to effect the desired pre-heating without heating the insecticide within the reservoir, a substantial portion of the delivery tube 5 is extended through the flow pipe 2 as described above, and steam is employed as the pressure fluid for effecting atomization. The steam, passing around the delivery tube 5, heats the insecticide as the latter approaches the discharge nozzle 4.

In the form shown in Figure 5, the portion of the delivery tube which extends through the flow pipe is coiled, as at I I, whereby a still greater preheating of the insecticide can be effected.

A further feature of the invention resides in the provision of an improved means for facilitating connection of the flow pipe to steam supply hoses of various sizes. As shown in Figures 1, 3, and 4 the flow pipe is provided with a plurality of spaced rings or flanges I2, I3, and I4 of different diameters, the diameters increasing progressively from the end of the pipe toward the head A. The steam hose I5, which acts as a source of steam supply, shown in Figure 3 is of relatively Alarge inside diameter, corresponding substantially to theV hoses of various different sizes `to the ow pipe 2,.

thereby making the device adapted for use in connection Withhose equipment in diierent buildings or different parts of the same building..

Preferably an adjustable clamp II of any suitable kind is provided for securing a hose to the associated ring, it being understood that because of its adjustability the clamp is adapted to secure a hose to any one of the rings.

It is apparent from the foregoing description that I have provided a spraying unit which is adapted to be moved around from place to place with a minimum of danger of breakage of the glass reservoir B, and that the latter enables the` operator to observe the amount of its .contents at any time. Furthermore, the heating of the substance to be sprayed, e. g., insecticide, as it passes from the reservoir to the discharge nozzle renders the spray more eiective; and the rings of different sizes on the ow pipe facilitate connection to A hose having an internal. diameter v steam hoses of sizes varying within limits. Various changes may be made in the specic construction and arrangement of parts without departing from the invention as dened in the claims.

I claim:

1. A spraying apparatus comprising a sprayer head; a ow pipe carried by said head; a delivery tube carried by said head in cooperative relation to said ow pipe and extending downwardly from said head; a support comprising an annular base, and means connecting said head to said base for supporting said head above said base; a reservoir for substance to be sprayed insertable upwardly through said base; and means detachably connecting said reservoir to said head and in said support.

2. A spraying apparatus comprising a sprayer lhead including a screw threaded body; a flow pipe carried by said head; a delivery tube carried by said head in cooperative relation to said ow pipe and extending downwardly from said head; ay support comprising an annular base, and means connecting said head to said base for supporting said headabove saidA base; and a reservoir for substance to be. sprayed insertable upwardly through said base and being provided with screw threads engaging with the screw-threaded body of said head and in said support.

3. A spraying apparatus comprising a sprayer head a ow pipe carried by said head;. a delivery tube carried by saidhead in cooperative relation to said ow pipe and extending downwardly from said head; a support comprising an annular base, and spacedlegs connecting said head to said base for supporting said head above said base; a transparent reservoir for substance to be sprayed insertable upwardly through said base; and means detachably connecting said reservoir to'said head and in said support, the depth ofthe-reservoir being ,such that the reservoirv bottom is disposed above the bottom of said annular base.

WILLIAM M. NICOSON.